Three months in on a daily driver and this Antigravity H7 hasn't missed a beat — cranks strong, holds charge through a week of sitting, and the Re-Start mode kicked in once when I left lights on overnight. Weight savings also made the front end feel slightly livelier.

Fantastic lithium battery and the weight difference from a lead-acid H7 is shocking when you pick it up. Re-Start feature is clever but you need to understand the activation sequence — not obvious without reading the manual first.

The Antigravity battery held its voltage through a 45-minute idle at a car show - very impressed. Highly recommend for anyone needing reliable starting power.

The Antigravity battery held its voltage through a 45-minute idle at a car show - very impressed. Highly recommend for anyone needing reliable starting power.

The Antigravity battery held its voltage through a 45-minute idle at a car show - very impressed. Highly recommend for anyone needing reliable starting power.

The Antigravity battery held its voltage through a 45-minute idle at a car show - very impressed. Highly recommend for anyone needing reliable starting power.

Dropped this Antigravity H7 in place of the factory battery and the cold-crank confidence on cold mornings is remarkable — starts instantly even after sitting a week. The weight savings alone made the swap feel like a performance mod.

Antigravity's lithium chemistry delivers noticeably stronger cold cranking than the original Group 94R AGM, and the Re-Start function is a genuine safety net for anyone running accessories with the engine off. Fit was plug-and-play, terminals landed exactly where they should.

Parked at a trailhead with the stereo running too long — battery drained down, hit Re-Start, it fired right up like nothing happened. Half the weight of my OEM lead-acid and it fit the H7 tray dead-on.

Hard to believe something this light puts out that much cranking power, but it does — my engine turns over faster and cleaner than it ever did with the OEM Group 94R. Re-Start mode is genuine peace of mind for anyone who camps or tailgates with accessories running.

Picked this battery up and almost couldn't believe how light it is compared to the factory H7 — then put it in and it cranks harder than anything I've run in this car. Re-Start has already bailed me out once at a show, worth the price for that alone.

The lithium H7 fit the tray perfectly and starting power blew the old AGM away — cranks instantly no matter how cold. Companion app was a little finicky pairing at first, which is the only reason I'm not giving it five.

Swapped the old AGM 94R for this Antigravity lithium and immediately noticed how crisp the starter motor spins — the 3.0L catches on the first compression stroke every time now. Re-Start is just good insurance and the tray fit was a perfect drop-in.