$650
I got this great battery from GRP. Barely used mostly for testing for a few weeks it's working 100% perfectly, showing full charge and stable voltage. Comes with two remotes for the battery. Great way to lose weight off a perfect place in the car.
antigravitybatteries.com
**due to the AMG alternator programming, if you have an AMG I4, lithium batteries will NOT charge on drives enough to sustain long drives or without a trickle charger - V6 owners everything is fine
I got this great battery from GRP. Barely used mostly for testing for a few weeks it's working 100% perfectly, showing full charge and stable voltage. Comes with two remotes for the battery. Great way to lose weight off a perfect place in the car.

T6/L2 Lithium Car Battery
Antigravity T6/L2 Hi-Power lightweight Lithium Automotive Battery with RESTART Technology. Replace lead/acid battery in Hi-Performance Cars

- T6/L2 OEM Automotive Case size (directly replace stock battery).
- LxWxH: 10.75 x 7 x 6.8 inches.
- Amp Hour Options: 40 Ah, or 60 Ah.
- High Power: 40Ah=1500CA, 60Ah=1800 Cranking Amps.
- Exclusive RE-START Technology: Wireless Jump-Starting built-in; just press the button on your Keyfob remote.
- Complete Battery Management System built-in.
- Ultra Lightweight: Drop around 30lbs compared to the stock battery
- Safest Battery Technology using full BMS and Lifepo4 Lithium chemistry.
- Threaded Terminals: M8x1.25
**due to the AMG alternator programming, if you have an AMG I4, lithium batteries will NOT charge on drives enough to sustain long drives or without a trickle charger - V6 owners everything is fine