The Antigravity H7 / Group-94R 40Ah lithium battery is the lightest, most race-focused option in Antigravity’s H7 lineup. Designed for vehicles where maximum weight reduction is the priority, this battery delivers strong starting power in an OEM-size case while removing a massive amount of weight from the front of the car. Built-in RE-START wireless jump-starting and a full Battery Management System (BMS) are included for safety and convenience.
Highlights
- Extreme Weight Reduction: Weighs approximately 14–15 lb versus ~60–65 lb for a typical H7 lead-acid battery — remove up to 45–50 lb from the nose of the car for maximum weight transfer and quicker ETs.
- 40Ah Capacity: Ideal for race cars, weekend track vehicles, and lightweight performance builds.
- ~1500 Cranking Amps: Strong starting power for performance engines when paired with proper charging systems.
- RE-START Technology: Built-in wireless jump-starting — press the included keyfob to re-activate the battery if it becomes discharged.
- Built-In Battery Management System (BMS): Over-charge, over-discharge, short-circuit, thermal protection, and automatic cell balancing.
- OEM H7 / Group-94R Fitment: Direct-replacement size for vehicles that use the H7 / 94R battery format.
Compare Antigravity H7 / Group 94R Batteries (Choose Your Size)
| Model | Best For | Capacity | Cranking Amps | Weight | Weight Savings vs Lead-Acid | Notes |
|---|---|---|---|---|---|---|
| 40Ah | Race cars, weekend track vehicles, minimal accessories | 40Ah | 1500 CA | ~14–15 lb | Remove up to ~45–50 lb from the rear of the car (typical H7 lead-acid is ~60–65 lb) | Most aggressive weight reduction option. Best when electrical load is low. |
| 60Ah | Street/strip sweet spot, weekend racers, moderate accessories | 60Ah | 1800 CA | ~19–20 lb | Remove up to ~40+ lb from the rear of the car (typical H7 lead-acid is ~60–65 lb) | Best balance of weight savings and dependable reserve capacity. |
| 80Ah | Highest reserve capacity, more accessories, frequent street use | 80Ah | 2000 CA | 25.5 lb | Remove up to ~35–40 lb from the rear of the car (typical H7 lead-acid is ~60–65 lb) | Still a major weight drop, with maximum reserve for street cars and added electrical load. |
All models include RE-START technology (wireless jump-starting) and a built-in Battery Management System (BMS).
Specifications (40Ah Model)
- Model / SKU: AG-H7-40-RS
- Case Size: H7 / Group 94R
- Dimensions (L × W × H): Approx. 12.25 × 7 × 7.5 in
- Weight: Approx. 14–15 lb
- Amp Hours: 40Ah (actual)
- Cranking Amps: ~1500 CA
- Nominal Voltage: 12.8V
- Terminals: M8 × 1.25 threaded
- Includes: Battery, RE-START wireless keyfob(s), mounting hardware
Applications: ALL ENGINE SIZES
- 2005-2023 Chrysler 300
- 2005-2008 Dodge Magnum
- 2006-2023 Dodge Charger
- 2008-2023 Dodge Challenger
- 2005-2021 Jeep Grand Cherokee
- 2011-2024 Dodge Durango
