1. MountainPass

    MPP Lightweight Lithium Battery Kit- Now In Stock!

    Available soon! Pre-Order to save 10%! Shave 24 pounds off the front of your Model 3 with our tested Lithium 12V battery replacement. EarthX ETX900 Lithium Ion Battery designed and manufactured in the USA – originally intended for aircraft! Over 6 months of testing, including deep sleep and...