Lightweight Lithium Ion Batteries

BMW M cars need a smart diet

As I sought to find ways to reduce the weight of my E92 M3 without compromising its street driving characteristics, it became evident a new lithium ion battery was in order. It is one of the best bang for your buck modification for weight reduction to most BMW M cars.

The common concerns of Lithium Ion Batteries

Lithium Ion batteries can easily match a standard AGM battery cranking power, but will often have less capacity over time leading to discharge errors. This is a major component to it's 4x to 5x lighter weight.  

A critical reason for discharges was the lack of proper battery monitoring: manufacturers offer external monitoring and does not track total battery capacity remaining or temperatures.

A new generation of Lithium-Ion batteries with Bluetooth Monitoring

Lithiumax engineered 2x batteries with BMW M owners in mind, the 2nd generation RESTART10 and the RACE10+ with carbon fiber casing.

Lithiumax integrated Bluetooth monitoring within the battery in for ease of usage, additional data tracking and weight & packaging benefits. It can easily be managed from a dedicated Lithiumax App by scanning the QR code on top of the battery.

RESTART10 Gen2
Reliable and lightweight power for street driven M cars

Lithiumax has designed a battery with an industry leading power-to-weight ratio: the RESTART10 Gen 2 offers 1500CCA of peak power and a 100Ah PbEq capacity at 8 kgs / 17.6 lbs.

The Lithiumax RESTART10 Gen 2 Bluetooth has a Restart feature that will cut the battery power at a safe level if it is inadvertently drained. It can then be restarted in order to start the engine from the Bluetooth Lithiumax App or a button on top of the battery. 

RACE10+ Carbon Fiber
Ultra lightweight power for Clubsport M cars 

It weights 4.2 kg / 9.3 lbs and is capable of delivering 1000CA (Cranking Amps) and 70Ah PbEq capacity with Bluetooth Monitoring. The casing is laminated with carbon fiber for better aesthetics.