Antigravity H7/Group 94R Lithium Car Battery w/Re-Start - AG-H7-40-RS

The Antigravity H7/Group 94R Lithium Car Battery with RE-START (AG-H7-40-RS) is a direct-fit, OEM-size lithium-ion automotive battery engineered for performance vehicles that accept the H7 / Group 94R battery group size. Built around Antigravity's breakthrough RE-START technology, it is the first intelligent lithium-ion car battery that can wirelessly jump-start itself — meaning you'll never be stranded by a dead battery again. At 40Ah and 1500 cranking amps, it delivers serious starting power in a package that is dramatically lighter than the lead-acid battery it replaces.

Key Features & Benefits

• Wireless RE-START Jump-Starting: The battery's built-in RE-START technology lets you activate an emergency self-jump-start by pressing the button on the included keyfob remote — no jumper cables, no jump-starter pack, no opening the hood required. You can restart your car from the safety of the driver's seat.
• Manual RE-START Backup: In addition to the wireless keyfob, a RE-START button is located directly on top of the battery for manual activation when needed.
• Intelligent BMS — Won't Leave You Stranded: The on-board Battery Management System (BMS) monitors the battery's state and puts itself to sleep before it can be completely drained — while reserving just enough charge to start the vehicle. Leaving your lights on is no longer a crisis.
• Full Safety Protection Suite: The BMS includes over-discharge protection, over-charge protection, short-circuit protection, cell balancing, and thermal protection — keeping the battery safe and extending its service life.
• Ultra-Lightweight Design: Antigravity's LiFePO4 lithium chemistry is approximately 70% lighter than a comparable lead-acid battery, with RE-START batteries across the line ranging from approximately 8.5 lbs to 17 lbs depending on the model — a potential weight reduction of up to 40 lbs compared to OEM lead-acid.
• Exact OEM Drop-In Fitment: Built to H7/Group 94R case dimensions (12.25 × 7 × 7.5 inches), this battery is a direct replacement for the factory battery in supported vehicles — no modification, no adapter brackets.
• LiFePO4 Chemistry for Safety & Longevity: Lithium Iron Phosphate (LiFePO4) is one of the safest lithium chemistries available. Antigravity expects 7–9 years of service life from RE-START batteries depending on usage and climate.
• Threaded M8x1.25 Terminals: Machined threaded terminals ensure a solid, reliable electrical connection and resist corrosion over time.
• Optional Bluetooth Battery Tracking: Compatible with Antigravity's separately available Battery Tracker accessory for real-time battery status monitoring via Bluetooth.

Specifications

• Part Number: AG-H7-40-RS
• Battery Group Size: H7 / Group 94R
• Capacity: 40 Ah (actual)
• Cranking Amps: 1500 CA
• Voltage: 12V
• Chemistry: LiFePO4 (Lithium Iron Phosphate)
• Case Dimensions (L × W × H): 12.25 × 7 × 7.5 inches
• Terminal Type: Threaded M8×1.25
• RE-START Activation: Wireless keyfob remote (included) or manual button on battery top
• BMS Features: Over-discharge, over-charge, short-circuit protection; cell balancing; thermal protection
• Expected Service Life: 7–9 years (depending on use and climate)
• Weight Savings vs. Lead-Acid: Up to approximately 40 lbs lighter (RE-START line ranges ~8.5–17 lbs by model)
• Shipping Note: Adult signature required at delivery

Fitment

The AG-H7-40-RS is designed to fit any vehicle that uses the H7 / Group 94R OEM battery size — a common group size found across a wide range of European and domestic performance cars, luxury sedans, sports cars, and enthusiast vehicles. Because it matches the OEM case dimensions exactly (12.25 × 7 × 7.5 inches), it drops directly into the factory battery tray without modification.

If you are unsure whether this battery fits your specific year, make, model, and trim, contact the ThreePiece.us fitment team before ordering. We're here to verify compatibility for your exact vehicle.

Note: This listing is for the 40Ah variant (AG-H7-40-RS). Higher-capacity 60Ah and 80Ah versions are also available in the H7/Group 94R case size if your vehicle's electrical demands require more reserve capacity. The 80Ah version cannot ship by air.

What's in the Box

• Antigravity H7/Group 94R RE-START Lithium Battery (40Ah)
• Wireless keyfob remote for RE-START activation

Why Buy from ThreePiece.us

• Free Shipping: Every order ships free — no minimum purchase required.
• Affirm Financing: Split your purchase into manageable payments with Affirm financing available at checkout.
• Expert Fitment Support: Our team has served 10,000+ customers and is available to confirm this battery fits your specific vehicle before you buy. Reach us at 813-535-5801 or via our fitment help contact form.
• Genuine Products: ThreePiece.us carries 100% authentic Antigravity Batteries products — never replicas or gray-market stock.
• Price Match Guarantee: Found it cheaper elsewhere? Ask us about our price match guarantee.

Frequently Asked Questions

Q: How does the RE-START wireless jump-start actually work?
A: The battery's built-in BMS intelligently monitors charge levels and puts the battery into a protected sleep state before it can be fully drained — but not before reserving enough energy for one emergency start. When you need it, press the button on the included keyfob remote. The RE-START system wakes the battery, and you can start your car normally. You never have to open the hood or connect cables.

Q: Will this battery fit my car without any modifications?
A: The AG-H7-40-RS is built to exact H7/Group 94R OEM case dimensions (12.25 × 7 × 7.5 inches) and is designed as a direct drop-in replacement for vehicles that use that group size. No adapter brackets or tray modifications are required. If you're not 100% sure your vehicle uses an H7/Group 94R battery, contact our team and we'll verify fitment before you order.

Q: Is there a higher-capacity version if I need more reserve power?
A: Yes. Antigravity offers this same H7/Group 94R RE-START battery in 60Ah (1800 CA) and 80Ah (~2000 CA) versions as well. The 40Ah (AG-H7-40-RS) listed here delivers 1500 cranking amps and suits most performance street applications. Note that the 80Ah version cannot ship via air freight.

Q: Do I need a special charger for this lithium battery?
A: Antigravity recommends using a charger compatible with LiFePO4 lithium batteries. Antigravity's own SUPER-CHARGER line is designed to work with their RE-START batteries and is available separately. Using an incompatible lead-acid-only charger is not recommended for long-term battery health.