The Antigravity ATZ7 RE-START Lithium Battery is an ultra-lightweight, high-power lithium-ion battery. Its key feature is the integrated RE-START function, which automatically enters sleep mode when the battery gets low, reserving enough power to restart the engine. Simply press the button on top of the battery to start the engine and get back on the road. Never worry about being stranded due to a dead battery again.
Weighing just approx. 590g, it is up to 70% lighter than lead-acid batteries of the same size. It provides crisp cranking performance with minimal voltage drop during startup. Additionally, it features a full Battery Management System (BMS), which significantly enhances safety and service life through over-discharge protection, overcharge protection, thermal protection, and cell balancing.
It is a direct replacement for standard batteries such as the YTZ7S, YTZ5, YTX5L-BS, and several others, making it suitable for many off-road bikes, enduro bikes, motocross bikes, and even some touring models. The 4-terminal design provides flexible installation for vehicles with different positive/negative terminal orientations.
Key Features
RE-START function allows for self-restart even if the battery is depleted
Full BMS (low voltage, overcharge, thermal protection, and cell balancing)
150 Cranking Amps for high-performance starting
Ultra-lightweight design at only approx. 0.6kg
Resistant to vibration and impact; ideal for off-road and competition use
LiFePO4 chemistry for superior safety and durability
Can be mounted in any orientation (no leaks)
Specifications
Dimensions: approx. 11.5 × 7.0 × 8.5 cm
Capacity: 7Ah (PbEq) / Actual 3.3Ah / 42Wh
Cranking Amps: 150CA
Weight: approx. 590g
Part Number: AG-ATZ7-RS
Compatible OE Battery Sizes
YTZ5S / YTZ7S / YTZ8V
YTX4L-BS / YTX5L-BS / YTX7L-BS
Recommended Applications
Up to 450cc street, off-road, enduro, and motocross bikes
Effective for weight reduction in race bikes, cafe racer builds, etc.
※Not for use in automobiles
Before You Order
〇 Regarding Import Duties
At the Shaftoya shopping site, we pay all import duties incurred at the time of entry, so there are no additional charges beyond the total amount paid at checkout.
〇 Checking Compatibility
Our entire product database is based on North American (USDM) vehicles. Please verify whether the part is compatible with your Japanese (JDM) vehicle before ordering. (If you are unsure if a listed product is compatible with your vehicle, please feel free to contact us. Our support team will be happy to assist you.)
If an order is placed without verifying compatibility, we cannot accept returns due to incompatibility.
Please note that even if items are sorted by selecting the year, make, and model using the tabs on our home page, this does not guarantee a direct fit for the Japanese domestic market version of the vehicle.
All product descriptions have been translated into Japanese using translation software. Due to the potential for confusing terminology, please contact us if you have any questions before placing your order.
○ Regarding Shipping
Shipping costs are paid at checkout. Estimates for shipping can be calculated automatically on the checkout page after entering your shipping address. In rare cases, the automatic calculation for large items, such as body parts, may differ significantly from the actual shipping cost. In such instances, we will contact you via email separately.
Basically, all items are shipped internationally from our warehouse in the United States. Unlike domestic shipping, international delivery typically takes 7 to 14 days, so please allow ample time for delivery. If you are in a rush, please contact us to confirm lead times in advance. Note that all items are shipped via air freight; they are not shipped via sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Generally, all products we handle are designed and manufactured outside of Japan. Please understand that they are not compliant with the "Japanese Vehicle Inspection System," and we cannot provide documents such as structural strength certificates for these purposes. Therefore, all parts are sold for "circuit, private property, or off-road use only," and installation and usage are at your own risk.
○ Regarding Warranty
Please inspect your items immediately upon arrival. Since all products are shipped internationally, packaging and items may occasionally sustain shipping damage. We will only provide returns, refunds, or replacements for damaged, defective, or incorrect items if you notify us within 7 days of receipt. Please understand that for products sold through us, all warranty support is handled "exclusively through us." We do not coordinate with other companies or agencies located within Japan.