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Your Vehicle  //  Porsche  //  Boxster 986/987/981 (1997-2016)  //  Boxster 987 2.7L 2005-08/08

Batteries & Chargers

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DISPLAYING 1 to 16 (of 40 products)
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99750415100KIT
Product Information
Product Information

Battery Tray Replacement Kit. 
This battery tray replacement kit bundles Porsche battery mounting components to renew the support and fastening assembly on the specified 996, 997, Boxster and Cayman applications. The tray, seal, fastening clamp and fixings work together to support the battery and retain it in position.

Fits:

  • Porsche Boxster 986 2.5L 1997–99
  • Porsche Boxster 986 2.7L 1999–02
  • Porsche Boxster S 986 3.2L 1999–02
  • Porsche Boxster 986 2.7L 2003–04
  • Porsche Boxster S 986 3.2L 2003–04
  • Porsche Boxster 987 2.7L 2005–08/08
  • Porsche Boxster 987 S 3.2/3.4L 2005–08/08
  • Porsche 996 C2 3.4L 1997–08/01
  • Porsche 996 C2 3.6L 09/01–2005
  • Porsche 997 MK1 Carrera 2 3.6L 2005–08
  • Porsche 997 MK1 Carrera 2S 3.8L 2005–08
  • Porsche 997 MKII Carrera C2 3.6L 2009–12
  • Porsche 997 MKII Carrera C2S 3.8L 2009–12
  • Porsche Cayman 2.7L 987C 2006–08
  • Porsche Cayman S 3.4L 987C 2005–08
  • Porsche Cayman 2.9L 987C MKII 2009–12
  • Porsche Cayman S / R 3.4L 987C MKII 2009–12


Check fitment for your specific vehicle (model, year, engine) before ordering.


What Is This Part?
This is a set of components for replacing the battery's supporting tray and associated retaining parts. The carrier plate provides the battery's seating surface, while the fastening clamp and bolt hold the battery against the tray. The carrier plate seal fits at the tray interface, and the four nuts provide the associated mounting fixings. Renewing these components together is useful when inspection identifies deterioration affecting more than one part of the mounting assembly.


What Does This Part Do?

  • Supports the battery: The tray provides a seating surface for the battery.
  • Retains the battery: The fastening clamp works with its bolt to hold the battery in its mounting position.
  • Secures the carrier: The supplied nuts form part of the carrier plate's mounting arrangement.
  • Renews the tray interface: The replacement seal allows the carrier plate and its sealing component to be renewed together.


Why Replace This Part?
Replacement may be appropriate if the existing tray is damaged, distorted or significantly corroded, or if its mounting points can no longer hold it securely. A damaged clamp or fixing can also prevent the battery from being retained correctly, even when the tray itself appears serviceable.

Inspect the seal and the mounting surfaces when removing the tray. Renewing a damaged seal alongside a deteriorated carrier avoids refitting it beneath the replacement tray. Any damage to the vehicle's mounting points should be assessed separately; new tray components cannot compensate for an unsound attachment point.


When to Replace This Part?

  • Tray deterioration: Significant corrosion, cracks or distortion affect the battery seating surface or fixing points.
  • Poor seating: The correctly specified battery does not sit properly because the carrier is damaged.
  • Damaged retention parts: The fastening clamp is bent or its bolt cannot secure it correctly.
  • Fixing damage: Nuts or bolt threads are damaged or no longer tighten correctly.
  • Seal deterioration: The carrier plate seal is damaged or no longer seats correctly during refitting.
  • Unexpected movement: Inspect the battery, clamp, tray and body mounting points together before deciding which parts require replacement.


Technical Details

  • Battery tray: 1 × 99750415100.
  • Battery tray seal: 1 × 99650462200.
  • Battery fastening clamp: 1 × 99661120901.
  • Hexagon-head bolt: 1 × 90037801701, M 8 X 20.
  • Hexagon nuts: 4 × 99908463001, M 8.

Product Summary

  • Product: Battery tray replacement kit with Porsche components.
  • Contents: Tray, seal, fastening clamp, one bolt and four nuts.
  • Purpose: Renews the battery support and retaining assembly.


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99750415100KIT
99908463001
99750415100
99650462200
90037801701
99661120901

The product you are viewing cross references to these numbers
RSC612
Product Information
Product Information
12A Smart Diagnostic Battery Charger
With battery analyser functions
12V DC 12A

12A Smart Battery Charger, to charge, protect, repair and analyse 12V batteries in vehicles up to 5L. Smart chargers are ideal for lead acid, gel, calcium, AGM and EFB batteries - and essential for maintaining START/STOP vehicles.

The RSC612/RESC612 Smart Charge applies an eight stage cycle, that recharges at the optimum speed, repairs damage to the battery, and automatically switches to a low charge rate once the battery is recharged, ensuring that it maintains its charge level without causing damage through overcharging. The RSC612/RESC612 also has four battery analysis tools, that test start power, the alternator check, battery cranking performance and battery voltage, to give you a full view of your vehicle battery's health.

The RSC612/RESC612 also has maintenance mode - ideal for long term connection - and memory saver function, so it can retain the vehicle's electronics settings (e.g. radio settings) if the battery is disconnected. The winter charge mode is ideal for charging in cold weather. The LCD screen makes it easy to take readings and select charge or analysis settings. This is a comprehensive battery care tool.

• 12A smart charger, ideal for 12V vehicles up to 5L
• Suitable for lead acid, gel, AGM and calcium batteries
• Recommended for START/STOP vehicles
• 8 stage charging cycle that recharges, protects from overcharging and repairs damage
• Battery voltage test displays the battery voltage as a percentage of its capacity
• Battery cranking test identifies potential starting problems due to battery failure
• Alternator check tests the recharging performance of the vehicle's alternator
• Start power test measures voltage drop during engine start to identify potential battery issues
• Auto charge button applies the fastest charge without having to alter settings
• Winter charge mode adapts the charging cycle to suit cold weather
• LCD screen makes it easy to see charging progress and select test options
• Memory saver function allows vehicle and audio settings to be retained if the battery is removed.

Product dimensions (HxWxD): 139mm x 197mm x 74mm
Weight: 1.48 kg
Voltage: 230V AC Input 12V DC Output

This charger comes with UK-type 3 pin plug. 
For other countries you will need relevant plug adapter (not included with this product)
RSC806
Product Information
Product Information
6A Advanced Smart Battery Charger
With fast charge and battery repair
12V DC 6A

6A smart charger, ideal for 12V vehicles up to 3.5L, and recommended for START/STOP vehicles. Compatible with lead acid, gel, calcium, EFB, AGM and lithium batteries. Charges twice as fast as a standard charger, plus protects against overcharging, and repairs, to keep your car battery in optimum condition. Slim line design makes it easy to store. Easy to use: the charger automatically detects the battery condition and applies the most suitable charging cycle. Includes maintenance mode for long-term connection: ideal for keeping infrequently used batteries in good condition. Rated IP65, making it weatherproof for charging outdoors. Winter charge mode applies the correct charge in cold weather. Compatible with Ring RSCBM Battery Monitor.

• 6A smart battery charger
• Suitable for 12V vehicles
• Recommended for START/STOP vehicles
• Compatible with lead acid, gel. calcium, AGM, EFB and lithium batteries
• Charges twice as fast as a traditional charger
• Protects against overcharging
• Repairs batteries through process of desulphisation
• Slim design makes it easy to store
• Simple to use
• IP65 rated: weatherproof
• Compatible with RSCBM Battery Monitor

Product dimensions (HxWxD): 166mm x 104mm x 37mm

Weight: 0.7440 kg
Voltag: 12V
AmpsOutput: 6A
Special Order item
95804490175
Product Information
Product Information
Adapter for Porsche battery charger.

For vehicles without cigarette lighter.
For connecting the Charge-o-mat and Charge-o-mat Pro (part number 95804490176) directly to the vehicle battery.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95804490175
95504490055
95504490056
00004320255
95804490075
95804490175
95804490176

The product you are viewing cross references to these numbers
60501
Product Information
Product Information
Car Battery 105Ah BANNER RUNNING BULL AGM

Please note: due to logistic restrictions, the batteries are collection from shop only.

Please check your batteries Ah before ordering

105Ah capacity @ 20h EN(Ah)
950 CCA @ 0 C EN (A)
392mm LENGTH
175mm WIDTH
190mm TOTAL HEIGHT

For vehicles fitted with or without an engine start/stop function, in order to achieve the CO2 limitation targets set by the EU by means of sustained fuel consumption savings and emission reductions. In general, two differing starter battery types are employed in these environment-friendly vehicles, consisting of the absorbent glass mat (AGM) and the enhanced flooded battery (EFB) systems. The use of the appropriate technology depends largely on the fuel and CO2 savings that can be attained. Above all, AGM batteries are utilised for start/stop systems with braking energy recuperation in mid-range and premium class vehicles.

Please note: This battery hasn't got the programmable function as per some factory specs.

• Valve-regulated nonwoven battery (VRLA)
• Range of five types with capacities from 60-105 Ah
• Three times greater cycle resistance than standard batteries: highest E4 classification pursuant to EN 50342-1
• Leak-proof owing to electrolyte bonding into a glass nonwoven (absorbent glass mat)
• Zero maintenance owing to recombination technology
• Highest V3 vibration resistance pursuant to EN 50342-1
• Maximum starting performance due to very low internal resistance
• Installation in a lateral position possible (max. 90° angle)
• Flexible use as a starter and on-board power supply battery

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

60501
60501
99961109512
99961109520

The product you are viewing cross references to these numbers
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.
P11040
Product Information
Product Information
Car Battery 110Ah 12v BANNER POWER BULL PRO

Please note: due to logistic restrictions, the batteries are collection from shop only.

Please check your batteries Ah before ordering

110Ah capacity @ 20h EN(Ah)
850 CCA @ 0 C EN (A)
394mm LENGTH
175mm WIDTH
190mm TOTAL HEIGHT

For vehicles fitted with or without an engine start/stop function, in order to achieve the CO2 limitation targets set by the EU by means of sustained fuel consumption savings and emission reductions. In general, two differing starter battery types are employed in these environment-friendly vehicles, consisting of the absorbent glass mat (AGM) and the enhanced flooded battery (EFB) systems. The use of the appropriate technology depends largely on the fuel and CO2 savings that can be attained. Above all, AGM batteries are utilised for start/stop systems with braking energy recuperation in mid-range and premium class vehicles.

Please note: This battery hasn't got the programmable function as per some factory specs.

• Valve-regulated nonwoven battery (VRLA)
• Range of five types with capacities from 60-105 Ah
• Three times greater cycle resistance than standard batteries: highest E4 classification pursuant to EN 50342-1
• Leak-proof owing to electrolyte bonding into a glass nonwoven (absorbent glass mat)
• Zero maintenance owing to recombination technology
• Highest V3 vibration resistance pursuant to EN 50342-1
• Maximum starting performance due to very low internal resistance
• Installation in a lateral position possible (max. 90° angle)
• Flexible use as a starter and on-board power supply battery

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

P11040
P11040
11040
99961107012
99961107020

The product you are viewing cross references to these numbers
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.
57001
Product Information
Product Information
Car Battery 70Ah BANNER RUNNING BULL AGM

Please note: due to logistic restrictions, the batteries are collection from shop only.

Please check your batteries Ah before ordering

70Ah capacity @ 20h EN(Ah)
720 CCA @ 0 C EN (A)
278mm LENGTH
175mm WIDTH
190mm TOTAL HEIGHT

For vehicles fitted with or without an engine start/stop function, in order to achieve the CO2 limitation targets set by the EU by means of sustained fuel consumption savings and emission reductions. In general, two differing starter battery types are employed in these environment-friendly vehicles, consisting of the absorbent glass mat (AGM) and the enhanced flooded battery (EFB) systems. The use of the appropriate technology depends largely on the fuel and CO2 savings that can be attained. Above all, AGM batteries are utilised for start/stop systems with braking energy recuperation in mid-range and premium class vehicles.

Please note: This battery hasn't got the programmable function as per some factory specs.

• Valve-regulated nonwoven battery (VRLA)
• Range of five types with capacities from 60-105 Ah
• Three times greater cycle resistance than standard batteries: highest E4 classification pursuant to EN 50342-1
• Leak-proof owing to electrolyte bonding into a glass nonwoven (absorbent glass mat)
• Zero maintenance owing to recombination technology
• Highest V3 vibration resistance pursuant to EN 50342-1
• Maximum starting performance due to very low internal resistance
• Installation in a lateral position possible (max. 90° angle)
• Flexible use as a starter and on-board power supply battery

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

57001
57001
99961107012
99961107020
9A7915105

The product you are viewing cross references to these numbers
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.
P7740
Product Information
Product Information
Car Battery 77Ah 12v BANNER POWER BULL PRO

Please note: due to logistic restrictions, the batteries are collection from shop only.

Please check your batteries Ah before ordering

77Ah capacity @ 20h EN(Ah)
680 CCA @ 0 C EN (A)
278mm LENGTH
175mm WIDTH
190mm TOTAL HEIGHT

For vehicles fitted with or without an engine start/stop function, in order to achieve the CO2 limitation targets set by the EU by means of sustained fuel consumption savings and emission reductions. In general, two differing starter battery types are employed in these environment-friendly vehicles, consisting of the absorbent glass mat (AGM) and the enhanced flooded battery (EFB) systems. The use of the appropriate technology depends largely on the fuel and CO2 savings that can be attained. Above all, AGM batteries are utilised for start/stop systems with braking energy recuperation in mid-range and premium class vehicles.

Please note: This battery hasn't got the programmable function as per some factory specs.

• Valve-regulated nonwoven battery (VRLA)
• Range of five types with capacities from 60-105 Ah
• Three times greater cycle resistance than standard batteries: highest E4 classification pursuant to EN 50342-1
• Leak-proof owing to electrolyte bonding into a glass nonwoven (absorbent glass mat)
• Zero maintenance owing to recombination technology
• Highest V3 vibration resistance pursuant to EN 50342-1
• Maximum starting performance due to very low internal resistance
• Installation in a lateral position possible (max. 90° angle)
• Flexible use as a starter and on-board power supply battery

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

P7740
P7740
7740
99961107012
99961107020

The product you are viewing cross references to these numbers
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.
58001
Product Information
Product Information
Car Battery 80Ah BANNER RUNNING BULL AGM

Please note: due to logistic restrictions, the batteries are collection from shop only.

Please check your batteries Ah before ordering

80Ah capacity @ 20h EN(Ah)
800 CCA @ 0 C EN (A)
315mm LENGTH
175mm WIDTH
190mm TOTAL HEIGHT

For vehicles fitted with or without an engine start/stop function, in order to achieve the CO2 limitation targets set by the EU by means of sustained fuel consumption savings and emission reductions. In general, two differing starter battery types are employed in these environment-friendly vehicles, consisting of the absorbent glass mat (AGM) and the enhanced flooded battery (EFB) systems. The use of the appropriate technology depends largely on the fuel and CO2 savings that can be attained. Above all, AGM batteries are utilised for start/stop systems with braking energy recuperation in mid-range and premium class vehicles.

Please note: This battery hasn't got the programmable function as per some factory specs.

• Valve-regulated nonwoven battery (VRLA)
• Range of five types with capacities from 60-105 Ah
• Three times greater cycle resistance than standard batteries: highest E4 classification pursuant to EN 50342-1
• Leak-proof owing to electrolyte bonding into a glass nonwoven (absorbent glass mat)
• Zero maintenance owing to recombination technology
• Highest V3 vibration resistance pursuant to EN 50342-1
• Maximum starting performance due to very low internal resistance
• Installation in a lateral position possible (max. 90° angle)
• Flexible use as a starter and on-board power supply battery

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

58001
58001
99961108012
99961108020
9A7915105A

The product you are viewing cross references to these numbers
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.
P8440
Product Information
Product Information
Car Battery 84Ah 12v BANNER POWER BULL PRO

Please note: due to logistic restrictions, the batteries are collection from shop only.

Please check your batteries Ah before ordering

84Ah capacity @ 20h EN(Ah)
700 CCA @ 0 C EN (A)
315mm LENGTH
175mm WIDTH
190mm TOTAL HEIGHT

For vehicles fitted with or without an engine start/stop function, in order to achieve the CO2 limitation targets set by the EU by means of sustained fuel consumption savings and emission reductions. In general, two differing starter battery types are employed in these environment-friendly vehicles, consisting of the absorbent glass mat (AGM) and the enhanced flooded battery (EFB) systems. The use of the appropriate technology depends largely on the fuel and CO2 savings that can be attained. Above all, AGM batteries are utilised for start/stop systems with braking energy recuperation in mid-range and premium class vehicles.

Please note: This battery hasn't got the programmable function as per some factory specs.

• Valve-regulated nonwoven battery (VRLA)
• Range of five types with capacities from 60-105 Ah
• Three times greater cycle resistance than standard batteries: highest E4 classification pursuant to EN 50342-1
• Leak-proof owing to electrolyte bonding into a glass nonwoven (absorbent glass mat)
• Zero maintenance owing to recombination technology
• Highest V3 vibration resistance pursuant to EN 50342-1
• Maximum starting performance due to very low internal resistance
• Installation in a lateral position possible (max. 90° angle)
• Flexible use as a starter and on-board power supply battery

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

P8440
P8440
8440
99961107012
99961107020

The product you are viewing cross references to these numbers
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.
59501
Product Information
Product Information
Car Battery 92Ah BANNER RUNNING BULL AGM.

Please note: due to logistic restrictions, the batteries are collection from shop only.

Please check your batteries Ah before ordering

92Ah capacity @ 20h EN(Ah)
850 CCA @ 0 C EN (A)
354mm LENGTH
175mm WIDTH
190mm TOTAL HEIGHT

For vehicles fitted with or without an engine start/stop function, in order to achieve the CO2 limitation targets set by the EU by means of sustained fuel consumption savings and emission reductions. In general, two differing starter battery types are employed in these environment-friendly vehicles, consisting of the absorbent glass mat (AGM) and the enhanced flooded battery (EFB) systems. The use of the appropriate technology depends largely on the fuel and CO2 savings that can be attained. Above all, AGM batteries are utilised for start/stop systems with braking energy recuperation in mid-range and premium class vehicles.

Please note: This battery hasn't got the programmable function as per some factory specs.

• Valve-regulated nonwoven battery (VRLA)
• Range of five types with capacities from 60-105 Ah
• Three times greater cycle resistance than standard batteries: highest E4 classification pursuant to EN 50342-1
• Leak-proof owing to electrolyte bonding into a glass nonwoven (absorbent glass mat)
• Zero maintenance owing to recombination technology
• Highest V3 vibration resistance pursuant to EN 50342-1
• Maximum starting performance due to very low internal resistance
• Installation in a lateral position possible (max. 90° angle)
• Flexible use as a starter and on-board power supply battery

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

59501
59201
99961109512
99961109520
99961109511
59501

The product you are viewing cross references to these numbers
PLEASE NOTE:
Due to its size, weight or fragility, this item requires additional protective packaging to make sure it reaches you undamaged. A small packing surcharge is applied to cover these specialist materials and the extra care taken preparing your order for transit.
Special Order item
99761290801
Product Information
Product Information
Battery Cable, Repair Kit LHD.
For Left Hand Drive Cars ONLY!

Fits:
Porsche 987.1 Boxster MKI 2005>>2008
Porsche 987.2 Boxster MKII 2009>>2012
Porsche 987.1 Cayman MKI 2006>>2008
Porsche 987.2 Cayman MKII 2009>>2012
Porsche 997.1 Carrera MKI 2005>>2008
Porsche 997.2 Carrera MKII 2009>>2012
Porsche 997.1 Turbo / GT2 MKI 2007>>2009
Porsche 997.2 Turbo / GT2 RS MKII 2010>>2013
Porsche 997 GT3 MKI / MKII 2007>>2011
Cars With Option Codes:
098 - Left-Hand Drive Version

Diagram Ref No 6

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99761290801
99761290801
99761290800
99761299300

The product you are viewing cross references to these numbers
Special Order item
99761109100
Product Information
Product Information
Battery Ground Cable, RHD (Right Hand Drive).

This Porsche Battery Ground Cable, RHD is a genuine OEM electrical cable designed specifically for right-hand drive models only. This heavy-duty cable connects the battery’s negative terminal to the chassis, providing the essential earth/ground connection that keeps your Porsche’s electrical system stable and reliable.

Fits:

  • Porsche Boxster 986 2.5L 1997-99
  • Porsche Boxster 986 2.7L 1999-02
  • Porsche Boxster S 986 3.2L 1999-02
  • Porsche Boxster 986 2.7L 2003-04
  • Porsche Boxster S 986 3.2L 2003-04
  • Porsche Boxster 987 2.7L 2005 -08/08
  • Porsche Boxster 987 S 3.2/3.4L 2005-08/08
  • Porsche Boxster 987 MKII 2.9L 2009-2012
  • Porsche Boxster S 987 MKII 3.4L 2009-2012
  • Porsche 996 C2 3.4L 1997-08/01
  • Porsche 996 C4 3.4L 1997-08/01
  • Porsche 996 C2 3.6L 09/01-2005
  • Porsche 996 C4 3.6L 09/01-2005
  • Porsche 996 C4S 3.6L 09/01-2005
  • Porsche 996 TURBO 2000-05
  • Porsche 996 GT2 2001-05
  • Porsche 996 GT3 MKI 1999-02
  • Porsche 996 GT3 MKII 2003>>
  • Porsche 997 Carrera 2 3.6L 2005-08
  • Porsche 997 Carrera 2S 3.8L 2005-08
  • Porsche 997 Carrera 4 3.6L 2005-08
  • Porsche 997 Carrera 4S 3.8L 2005-08
  • Porsche 997 TURBO 2007-09
  • Porsche 997 GT3 2007-09
  • Porsche 997 GT2 2007-09
  • Porsche 997 MKII Carrera C2 3.6L 2009-12
  • Porsche 997 MKII Carrera C4 3.6L 2009-12
  • Porsche 997 MKII Carrera C2S 3.8L 2009-12
  • Porsche 997 MKII Carrera C4S 3.8L 2009-12
  • Porsche 997 MKII GT3 2010-11
  • Porsche 997 MKII Turbo 2010-13
  • Porsche 997 MKII GT2 RS 2011-13
  • Porsche Cayman 2.7L 987C 2006-08
  • Porsche Cayman S 3.4L 987C 2005-08
  • Porsche Cayman 2.9L 987C MKII 2009-12
  • Porsche Cayman S / R 3.4L 987C MKII 2009-12

What This Product Does:
The battery ground cable is a heavy-duty electrical cable that connects the negative terminal of the battery to the chassis/engine ground. On right-hand drive (RHD) Porsche models, it is designed with the correct length and routing for proper fitment.

Functions:

  • Provides the primary earth/ground connection for the vehicle’s electrical system.
  • Ensures stable current flow between the battery, starter, alternator, and electronic modules.
  • Helps deliver consistent starting power and prevents voltage drops.
  • Protects sensitive electronic components by maintaining proper grounding.

Symptoms Of A Faulty Battery Ground Cable:
  • Hard starting or intermittent no-start condition.
  • Electrical faults such as flickering lights or warning messages.
  • Battery not charging properly due to poor grounding.
  • Slow cranking from the starter motor.
  • Visible corrosion or fraying on the cable or terminals.

Why Replacement Matters:
The ground cable is a critical link in the electrical system. A poor connection can cause starting issues, electrical malfunctions, or even damage to control modules.
Replacing it with a
genuine OEM cable ensures:
  • Correct fitment for RHD (Right Hand Drive) Porsche models.
  • Reliable starting and charging performance.
  • Long-term corrosion resistance and durability.
  • Protection for sensitive electronics.

Diagram Ref No 1

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99761109100
99761109100
99661109100
99661109101
99661109105
99661109106

The product you are viewing cross references to these numbers
EL11
Product Information
Product Information

Rennline M6 to SAE Battery Terminal Conversion Kit

The Rennline M6 to SAE Battery Terminal Conversion Kit provides a simple and effective solution for converting batteries with female M6 threaded terminals into standard SAE battery posts. Designed for enthusiasts and professionals alike, this high-quality conversion kit allows you to use conventional automotive battery clamps, quick-disconnect connectors and accessory wiring without the need to modify or replace your existing battery cables.

Perfect for Porsche owners upgrading or replacing their battery, the kit offers a clean, reversible installation that preserves your battery while making future maintenance and accessory installation significantly easier. Whether you're fitting an Odyssey AGM battery or another battery using female M6 threaded terminals, the Rennline conversion kit delivers a secure, reliable connection with factory-quality fit and finish.

Each SAE battery post is precision manufactured and supplied pre-threaded at the top, allowing the installation of either M8 or M10 hardware using the included fixings. This makes it quick and convenient to add additional power or earth connections for accessories such as battery chargers, inverters, fuse blocks, motorsport electronics, audio systems or auxiliary equipment without compromising the main battery connection.

Although originally developed for Odyssey AGM batteries, the conversion posts are compatible with most batteries featuring female M6 threaded terminals, making them a versatile upgrade for road cars, classic Porsche restorations, performance vehicles, race cars and off-road applications.

Why Upgrade to the Rennline M6 to SAE Conversion Kit?

Many modern AGM batteries utilise threaded M6 terminals, which can limit compatibility with traditional battery clamps and electrical accessories. The Rennline Conversion Kit eliminates this problem by converting your battery to the industry-standard SAE post configuration, providing greater flexibility while maintaining a neat, professional installation.

Features

  • Converts female M6 threaded battery terminals to standard SAE battery posts.
  • Compatible with standard automotive battery clamps.
  • Allows installation of quick-disconnect battery connectors.
  • Ideal for additional accessory power and ground connections.
  • Pre-threaded battery posts accept both M8 and M10 hardware.
  • Mounting hardware included.
  • Designed as a clean, fully reversible conversion.
  • No need to modify or re-terminate existing battery cables.
  • Originally designed for Odyssey AGM batteries.
  • Compatible with most batteries using female M6 threaded terminals.
  • Ideal for Porsche road, performance, motorsport and restoration projects.

Compatibility

Suitable for:

  • Odyssey AGM batteries.
  • Most batteries featuring female M6 threaded battery terminals.
  • Porsche vehicles fitted with compatible AGM battery upgrades.
  • Standard SAE automotive battery clamps and connectors.

Please verify your battery terminal configuration before ordering.

Special Order item
99761290901
Product Information
Product Information
Battery to power distributor harness repair kit for RHD Cars

Fit:
For RHD Cars
Porsche 987 Boxster 2005>>
Porsche 987C Cayman 2005>>
Porsche 997 2005>>

Click 'Zoom on' for large parts diagram.
Diagram ref no 6

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99761290901
99761290900
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99750415100
Product Information
Product Information

This Porsche battery tray supports the battery within its mounting assembly on the specified 996, 997, Boxster and Cayman models. Also described as a battery carrier plate, it provides the base beneath the battery and works with the associated retaining hardware.


Fits:

  • Porsche Boxster 986 2.5L 1997–99
  • Porsche Boxster 986 2.7L 1999–02
  • Porsche Boxster S 986 3.2L 1999–02
  • Porsche Boxster 986 2.7L 2003–04
  • Porsche Boxster S 986 3.2L 2003–04
  • Porsche Boxster 987 2.7L 2005–08/08
  • Porsche Boxster 987 S 3.2/3.4L 2005–08/08
  • Porsche Boxster 987 MKII 2.9L 2009–12
  • Porsche Boxster S 987 MKII 3.4L 2009–12
  • Porsche 996 C2 3.4L 1997–08/01
  • Porsche 996 C2 3.6L 09/01–2005
  • Porsche 997 MK1 Carrera 2 3.6L 2005–08
  • Porsche 997 MK1 Carrera 2S 3.8L 2005–08
  • Porsche 997 MKII Carrera C2 3.6L 2009–12
  • Porsche 997 MKII Carrera C2S 3.8L 2009–12
  • Porsche Cayman 2.7L 987C 2006–08
  • Porsche Cayman S 3.4L 987C 2005–08
  • Porsche Cayman 2.9L 987C MKII 2009–12
  • Porsche Cayman S / R 3.4L 987C MKII 2009–12


Diagram Ref No 7

Check fitment for your specific vehicle (model, year, engine) before ordering.


What Is This Part?

The battery tray is the supporting platform beneath the battery. It forms part of the mechanical mounting arrangement, alongside the battery retaining rail and fixings where applicable. Its condition matters because the battery needs a sound, correctly seated base before the retaining hardware can hold it properly. Battery removal provides an opportunity to inspect the tray, its mounting points and the surrounding installation.


What Does This Part Do?

  • Supports the battery: Provides the base on which the battery rests.
  • Maintains seating: Helps keep the battery positioned correctly within its mounting arrangement.
  • Completes the mounting assembly: Works with the associated retaining hardware to support secure installation.


Why Replace This Part?
Replacement may be appropriate if inspection finds corrosion, cracks, distortion or damaged mounting points that prevent the tray from supporting the battery correctly. A distorted base can leave the battery sitting unevenly, while deterioration around a fixing can affect the mounting assembly.

Inspect the retaining hardware and surrounding mounting area at the same time. If the battery is loose, check the complete assembly before deciding which component needs replacement. A flat battery, slow cranking or electrical warning messages alone do not establish that the tray is faulty.


When to Replace This Part?

  • Structural deterioration: Corrosion or other damage has weakened the supporting surface or mounting points.
  • Cracks or distortion: The tray is split, bent or no longer allows the correct battery to sit evenly.
  • Damaged fixings: Mounting holes or fixing areas are damaged and cannot retain the tray correctly.
  • Movement after fastening: The battery remains insecure after the correct retaining hardware has been checked and fitted.
  • Damage found during removal: Inspection with the battery removed reveals deterioration that was previously hidden.


Where Is This Part Fitted?
Location: Directly beneath the battery, forming the supporting base of the battery mounting assembly.


Product Summary

  • Product: Battery tray / battery carrier plate.
  • Brand: Porsche.
  • Part number: 99750415100.
  • Purpose: Supports the battery and works with its retaining hardware.
  • Repair context: Replacement of a damaged or deteriorated battery support following inspection.


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About Batteries & Chargers

Batteries & Battery Chargers – Reliable Power Solutions for Porsche Performance

Batteries and battery chargers are essential for maintaining your Porsche’s performance, reliability, and electrical health. The battery supplies the power required to start your engine and run all onboard electronics, while a quality charger ensures your battery remains in peak condition during storage or periods of infrequent use. Together, they keep your Porsche ready to perform — whether on the road, at the track, or in the garage.

At Design911, we stock a full range of genuine and manufacturer-quality batteries and battery chargers suitable for the transaxle cars, 911, Boxster, Cayman, Cayenne, Macan, and Panamera models. Our selection includes AGM, lithium, and conventional batteries, along with intelligent smart chargers that optimise battery health, extend lifespan, and ensure efficient energy delivery for every type of Porsche.

What Do Car Batteries and Chargers Do?

  • Car batteries supply electrical power for engine starting, ignition, and all onboard systems, including lighting, infotainment, and climate control.
  • Battery chargers maintain optimal voltage and charge levels, especially during long-term storage, preventing sulfation and premature battery failure.

These components work together to ensure consistent performance, quick starts, and reliable energy storage, especially in high-performance vehicles that demand precision power management.

Why Do Batteries Fail?

Even high-performance batteries degrade over time. Common causes of failure include:

  • Age-related wear reducing charge capacity.
  • Parasitic electrical drain from onboard electronics.
  • Temperature extremes accelerating internal deterioration.
  • Infrequent use leading to discharge or sulfation.
  • Poor charging habits or alternator issues causing undercharging or overcharging.

Warning signs include slow cranking, dim lights, battery warning lights, or complete electrical loss.

Why Replace or Maintain Your Battery?

Replacing a weak or failing battery ensures your Porsche always starts reliably and powers its advanced electronics safely. Using a quality charger also helps maintain optimal battery condition, extending lifespan and performance.

Benefits include:

  • Improved starting reliability and voltage stability.
  • Protection against battery drain and electrical faults.
  • Longer service life through proper maintenance charging.
  • Manufacturer-quality performance and compatibility with Porsche systems.

Our chargers feature smart technology that automatically monitors and adjusts charging rates — perfect for seasonal storage or vehicles with limited use.

1. How long does a Porsche battery last?
Most Porsche batteries last between 4 and 6 years, depending on usage and climate. Regular use, proper charging, and avoiding deep discharges can significantly extend battery life. Using a smart charger during long-term storage helps maintain health and performance.

2. What are the signs of a failing Porsche battery?
Common signs include slow engine cranking, dim lights, flickering dashboard electronics, or battery warning lights. If your Porsche struggles to start after being parked for a few days, the battery may be weak or not holding charge.

3. Do I need a special charger for my Porsche battery?
Yes — modern Porsches often use AGM or lithium-ion batteries that require intelligent chargers with microprocessor control. These chargers adjust voltage and current automatically, preventing overcharging and extending battery lifespan.

4. Can I use a trickle charger on my Porsche?
While trickle chargers can keep a battery topped up, smart battery chargers are safer and more effective for Porsche vehicles. They monitor charge levels and automatically switch to maintenance mode once full, preventing damage or overheating.

5. How do I prevent Porsche battery drain when not driving?
If your Porsche is parked for long periods, connect a smart charger or maintainer, disable unnecessary electrical systems, and avoid leaving key fobs nearby (which can keep electronics active). This ensures the battery stays charged and ready to go.

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