Originally Posted by LightSpeed
My AntiGravity battery has 900 CCA and does an admirable job at spinning the engine on startup.
Antigravity ATX20-HD Lithium Battery

Agree. That is the one I fitted. I recommend this one to US owners. It fits right in where the factory battery was, although it is smaller, I simply added a wooden spacer so that the factory clamp holds it. It is much lighter too.

Last edited by JohnMat; 07/02/22 07:41 PM.
2020 M3W