Antigravity's H6 / Group 48 60Ah lithium battery, part number AG-H6-60-RS, is the lightweight answer for owners who want an H6 / Group 48 footprint and no more lead-acid brick. Antigravity says the H6 case size fits the battery location in most race vehicles.
The headline feature is Re-Start. If the battery is run down by accident, a lights-on weekend or a long sit, it drops into a sleep state that holds back enough energy to restart the car, and you wake it with the included keyfob or the button on top of the case. Behind that sits a full battery management system covering over-discharge, over-charge, short circuit and thermal protection, plus cell balancing.
Antigravity claims up to 70 percent weight savings over lead-acid, and this 19.5 lb battery is where you feel it. Antigravity quotes an expected service life of 7 to 9 years depending on use, with low self-discharge and no acid or hydrogen release while charging. Cranking is rated at 1800 peak cranking amps (CA), a peak figure rather than a CCA test number. Add the Antigravity AG-H6-60-RS to your cart at Track Ready Products and take the weight out of your next build.
Disconnect negative, then positive, lift the old battery out, and seat the Antigravity in the tray. Tighten the hold-down, reconnect positive and then negative.
Use a lithium-compatible charger for maintenance. Antigravity recommends the SC-4 and SC-10 Super-Chargers, and an old lead-acid float charger is the wrong tool here.
Match the terminal side to your old battery before you order, and make sure your cable ends fit the threaded terminals.
Cold weather trims lithium cranking performance, which matters for winter-driven cars. Delivery requires an adult signature, so schedule accordingly.