Engine Electrical

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)

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

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.




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95804490175

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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.

The GYSFLASH 4.12 is specifically designed to charge small vehicles' 12V batteries such as small urban cars, motorbikes, jet-skis, go-karts or lawnmowers. Its 7 step intelligent charging curve provides an optimal charge and charges in half the time of a traditional charger.

IDEAL FOR SMALL CARS

• Designed for 12 V batteries from 1.2 to 70 Ah, or for maintenance charging up to a 130 Ah.
• Winter mode / start stop AGM batteries :
- Charge mode for cold weather (less than 5°C).
- Optimal mode for Start & Stop batteries (AGM).
• Cigarette lighter adaptor, charge the battery by connecting the Gysflash to the cigarette lighter of the vehicle (optional cable).
• Optimised maitenance charge, the charger can remain plugged in indefinitely during winter to maintain the health of the battery. «Auto Restart» feature so the charger can restart automatically with the right settings after a power cut.

HIGH PERFORMANCE CHARGE

• The 7 step charging curve ensures maximum battery performance and longevity.
• It recovers deeply discharged batteries >2V (SOS Recovery ).

SAFETY / PROTECTION FOR VEHICLE ELECTRONICS

• • Protection of the vehicle's on-board electronics: protection against short circuits, polarity reversal and overcharging. Anti-spark technology.
• Automatic stand-by mode if the battery is disconnected.
• Integrated temperature probe to prevent internal electronics' overheating.
• Simplified interface to prevent user error.

ERGONOMIC


• Ultra-compact design, light and portable.
• Quick / easy to connect waterproof connectors.
• Resistant to dust and water ingress (IP65 - not waterproof).
• Can be attached to a wall.

Related reference numbers
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955044900XX

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Cigarette lighter plug adapter for GYS battery chargers / maintainers. CANBUS ready. 35cm in length.
To be used in conjunction with GYSFLASH chargers.

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9580449007X

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Electrical plug housing - multiple applications (see below).

Porsche 986 Boxster 1997-04
- Camshaft position sensor
- Throttle valve
- Ignition coil

Porsche 996 Carrera & GT3 1998-05
- Ignition coil

Porsche 964/993 Carrera & Turbo 1994-98
- Crankshaft position sensor

Related reference numbers
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99965291640

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Electrical plug housing - multiple applications (see below).

Porsche 986 Boxster 1997-04
- Camshaft position sensor
- Throttle valve
- Ignition coil

Porsche 996 Carrera & GT3 1998-05
- Ignition coil

Porsche 964/993 Carrera & Turbo 1994-98
- Crankshaft position sensor

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99965291640

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Charger in retro battery look with illuminated Porsche Crest.



Suitable for all vehicles with a 6V or 12V battery (not just classic models).

Two modes (charging and maintenance), charging indicator, automatic battery voltage recognition and LED-light integrated in pole clamp.

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PCG3566117

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This battery disconnect switch is a 4 terminal style switch for cars with or without an alternator. Its bright red handle makes it easy to find in an emergency.



6-36 Volt
Prevents battery drain
175 Amp Continuous Rating
1000 Amp Peak.

Immobiliser Battery Switch

The simple and effective Immobilaiser and Battery Cut-Off Switch.
Fits in minutes to all battery types.
Simply unscrew the black knob to disable your starter motor.

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Smart Charge Battery Monitor
With indicator lights
12V DC



Battery charger monitor, compatible with Ring smart chargers. Easily clips onto the smart charger connectors, to give indication of the battery charge level. Traffic light system gives easy to read indication of charge level. Leave connected to the battery to monitor its condition using the simple traffic light system. If charging required connect your smart charger to RSCBM to top up.

Compatible with: Ring RSC706 6A Advanced Battery Charger

• Battery charge monitor for use with 700 series smart chargers
• Gives instant indication of charge level of the battery
• Suitable for long-term connection to the battery, for instant charge level update
• Easy to install

Product dimensions (HxWxD): 21mm x 600mm x 30mm
Weight: 0.0640 kg
Voltag: 12V

Ultraboost Portable 12V Jump Starters – 500A, 1000A & 1500A

Professional Lithium Car Battery Boosters for Petrol and Diesel Vehicles

The Ultraboost Jump Starter range is designed to provide reliable emergency starting power when you need it most. Available in 500A, 1000A and 1500A versions, these compact 12V lithium battery boosters are suitable for a wide range of petrol and diesel vehicles, delivering dependable performance in everyday driving and emergency situations.

If you are searching for a portable 12V jump starter for petrol cars, a diesel battery booster pack, or a compact lithium car jump starter for winter reliability, the Ultraboost range offers scalable power to suit your vehicle and usage requirements.

Available Power Options

Ultraboost 500A – Ideal for smaller petrol vehicles and everyday emergency backup.
Ultraboost 1000A – Suitable for engines up to 5ltr petrol and 2ltr diesel.
Ultraboost 1500A – Higher output for larger engines and increased starting demands.

This range allows drivers to choose the correct amperage for their vehicle size, engine capacity and frequency of use.

Emergency Boost for Completely Flat Batteries

Each Ultraboost model features an advanced Boost function, enabling you to start vehicles with completely depleted batteries. This makes it an essential portable jump starter for drivers who want protection against unexpected battery failure.

Whether your battery has failed in cold weather, after long storage, or due to electrical drain, the Ultraboost provides instant starting assistance without requiring another vehicle.

Fast Charging Power Bank Technology

The Ultraboost 1000A and 1500A models feature PD30W Fast Charge Technology, allowing rapid recharge of the unit itself while also delivering powerful USB-C charging for laptops, tablets and smartphones. A Quick Charge USB-A port provides additional versatility, transforming the jump starter into a portable in-car power bank.

For drivers looking for a jump starter with USB-C fast charging and mobile device support, Ultraboost offers a practical dual-purpose solution for road trips, track days and daily commuting.

Advanced Safety and Intelligent Protection

Safety is built into every Ultraboost unit. Ringtelligence technology includes reverse polarity protection and a spark-free design to prevent incorrect connection and ensure safe operation.

The Lock ‘n’ Load battery terminals provide a secure and stable connection to your vehicle battery, while easy-reach cables make installation simple, even on larger batteries or in tighter engine bays.

If you are looking for a safe lithium jump starter with reverse polarity protection and secure terminal clamps, Ultraboost delivers professional-level peace of mind.

Compact, Portable and Built for Convenience

An integrated bright LED torch illuminates battery terminals during low-light or roadside conditions. The compact yet durable casing ensures portability without compromising strength.

Each unit includes a carry case and USB-C charging cables, making it easy to store in your boot or garage as part of your essential vehicle emergency kit.

Key Features

• Available in 500A, 1000A and 1500A models
• Boost function for completely flat batteries
• Suitable for petrol and diesel vehicles
• PD30W fast charging (1000A and 1500A models)
• USB-C and Quick Charge USB-A ports
• Reverse polarity protection and spark-free design
• Secure Lock ‘n’ Load battery terminals
• Clear LED battery level indicators
• Integrated high-brightness LED torch
• Compact and portable design
• Supplied with carry case and USB-C charging cables

Technical Specifications (1000A Model)
Dimensions (mm): 204 x 125 x 105
Weight: 0.91 kg
Voltage: 12V
Output: 250A
Battery Type: Rechargeable Lithium-Ion (1 x custom battery included)

Why You May Need a Portable Jump Starter

A portable lithium jump starter is an essential accessory for:

• Preventing roadside breakdown disruption
• Cold-weather battery failures
• Vehicles stored for long periods
• Track cars and weekend vehicles
• Drivers without access to another vehicle for jump-starting
• Owners wanting a combined jump starter and power bank

For Porsche owners and performance vehicle drivers, maintaining battery reliability is especially important due to electrical systems and intermittent use patterns.

At Design911, we supply professional battery care and emergency power solutions designed for enthusiasts and everyday drivers who value reliability.