Antigravity H5/Group-47 Lithium Battery with RE-START Technology
This ultra-lightweight, high-output lithium battery is a direct replacement for standard H5/Group-47 batteries.
Equipped with our proprietary RE-START (wireless jump-start) technology, you can start your vehicle instantly by simply pressing a button on the included remote key fob if the battery ever goes dead.
Its superior cranking performance and significant weight reduction improve acceleration, braking, and steering responsiveness.
Specifications
Case Size (H5 / Group-47 Standard): Approx. 24.1 × 17.8 × 19.1 cm
Amp Hours: 24Ah or 40Ah
Starting Performance: 24Ah: 1000 Cranking Amps / 40Ah: 1500 Cranking Amps
Weight:
24Ah Model: Approx. 4.2kg
40Ah Model: Approx. 6.5kg
Terminals: M8 × 1.25
Battery Type: LiFePO4
RE-START Feature: Compatible with wireless key fob
BMS Functions: Over-charge / Over-discharge / Short-circuit / Thermal protection / Cell balancing
Features
Wireless RE-START Technology
When the battery reaches a low-voltage threshold, it automatically enters sleep mode, reserving just enough power to start the vehicle. Simply press the button on the key fob and restart the engine.
Full BMS for Safety and Longevity
Advanced voltage management, thermal protection, and cell balancing keep the battery in optimal condition.
Significant Weight Savings
Up to 70% lighter than lead-acid batteries.
One of the most effective weight-saving upgrades that directly impacts vehicle handling.
High Cranking Torque
Provides stable cranking performance even for high-performance and high-compression engines.
Fitment and Applications
・Audi
・Chevrolet Corvette (2013+)
・Lotus
・Mini Cooper
・Dodge Viper
・Other vehicles using H5 / Group-47 batteries
Suitable for both street and race vehicles.
24Ah → Best for weight savings / Vehicles driven occasionally / Race use
40Ah → Best for daily drivers or vehicles with many electronic accessories
Charging
You must use a LiFePO4-compatible charger. (Using a standard lead-acid charger may cause damage.)
Before You Order
〇 Import Duties and Taxes
At Shaftoya, we pay the import duties and taxes on your behalf. There are no additional fees beyond the total amount shown at checkout.
〇 Compatibility Check
Our product database is based on North American (USDM) vehicle specifications. Please verify compatibility with your Japanese-market (JDM) vehicle before placing your order. (Feel free to contact us if you are unsure; our support team will be happy to look it up for you.)
Returns due to compatibility issues will not be accepted if the order was placed without verification.
Please note that even if our website's search filters show products for your specific year, make, and model, it does not guarantee a direct fit without modification for JDM-spec vehicles.
All product descriptions are machine-translated into Japanese. Some expressions may be ambiguous, so please contact us if you have any questions before purchasing.
○ Shipping Information
Shipping costs are calculated at checkout based on your destination address. For large items like body parts, there may occasionally be a significant discrepancy between the system-calculated shipping cost and the actual cost. In such cases, we will contact you via email.
All products are shipped internationally from our U.S. warehouse. Please allow 7 to 14 days for international delivery. If you need your order urgently, please contact us for an estimated delivery date before ordering. All items are shipped via air freight; we do not offer sea freight.
○ Compliance with Japanese Vehicle Inspection (Shaken)
Our products are designed and manufactured outside of Japan. Please be aware that they are not tested for compliance with Japanese "Shaken" regulations, and we cannot provide certification or strength documentation for these standards. All parts are intended for use on circuits, private property, or off-road, and any installation or usage is at the customer's own risk.
○ Warranty
Please inspect your items immediately upon delivery. As products are shipped internationally, there may be cases of damage to the shipping container or the product itself. If you receive damaged, defective, or incorrect items, we will offer a return, refund, or replacement only if reported within 7 days of receipt. All warranty matters must be handled directly through us, as we do not provide support through other domestic agents or third-party dealers.