Spec your battery kit

Lightweight Lithium Smart Battery

Specifications:

Cost effective weight reduction strategy to save between 30 to 40 lbs.
Battery management system (BMS) with restart capability with on-battery button.
Self-heating battery for low temperature charging.
Weight:
- H6 40AH: 14.5 lbs
- H8 60AH: 19.5 lbs
- H8 80AH: 25.75 lbs
Fitment: The H8 size matches the original size in the E46 M3, E9x M3 and E6x M5/6.
Warranty: 3 Years

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Shipping calculated at checkout.

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Build Journal: Special Series

A smart diet.

BMW M adopted the lithium battery on the F8x as they pushed to reduce weight on an ever bigger M3.

We can retrofit this newer technology into our older M chassis. It is one of the best bang for your buck upgrade for weight reduction.

In this Special Series, I document my unboxing impressions along with my extensive trials and errors across my 3x M cars.

Cheers,
Matt

Read the special series (coming soon)

Compatible with OEM brackets

The battery is sized to T6 group dimensions. It was designed with idents to fit with OEM metal brackets of the E46 and E9x. The E60 fitment needs some extra foam.

3 years warranty

The Restart10 Gen 3 can deliver over 2000 charge and discharge cycles versus approx 500 with AGM batteries.

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⟵ Back to Year Long Catalog

Lightweight Smart Battery

Save up to 50 lbs.

The right power for your M.

Self heating.

Restart feature.

Lightweight Lithium Smart Battery

Specifications: