Antigravity Batteries ATZ10-RS Lithium Battery (with RE-START function / Full BMS)
The Antigravity ATZ10-RS is a high-power, lightweight lithium battery for motorcycles that is compatible with the standard YTZ10S size.
The built-in RE-START (emergency jump-start) function allows you to restart your engine even if the battery has gone dead. Additionally, it features Full BMS (over-charge / over-discharge / thermal / cell-balance protection), providing both high safety and long life.
It is up to 70% lighter than standard lead-acid batteries and offers up to 2x the starting performance.
It is suitable for a wide range of uses, from street riding to circuit tracks.
Specifications
Case size (YTZ10 compatible): Approx. 15.0 × 8.8 × 9.2 cm (L × W × H)
Cranking Amps: 360 CCA
Capacity (lead-acid equivalent): 12Ah
Actual Capacity (LiFePO4): 6.1Ah (78Wh)
Weight: Approx. 1.18kg (2.6 lbs)
Chemistry: LiFePO4
Management System: Full BMS (Low-voltage cut / Over-charge / Thermal / Cell balancing)
RE-START function: Emergency restart via top button or optional remote
Terminals: 4-terminal design (flexible positive/negative placement)
Features
The RE-START (emergency restart) function allows you to restart the engine with the push of a button if the battery goes dead.
The built-in Full BMS automatically manages over-discharge, over-charge, thermal protection, and cell balancing, significantly improving battery life and safety.
With 360 Cranking Amps, it delivers stronger starting torque than standard lead-acid batteries.
The weight is significantly reduced to approximately 1.18kg, positively impacting acceleration, braking, and handling.
The 4-terminal design makes wiring easier and allows for flexible installation on many vehicle models.
The low self-discharge design prevents voltage drop during long-term storage.
Compatibility & Use
Daily Use:
Compatible with street motorcycles up to 1000cc
Sports Riding / Race Vehicles:
Fits many sports bikes using YTZ10S / YTX9 sizes
Automotive Use:
Not compatible (For motorcycles/powersports only)
Compatible Battery Sizes
YTZ10S
YTZ12
YTZ14
YTX9
YTX9-BS
YTX7A-BS
YT12A-BS
Package Contents
Lithium battery unit
Terminal bolts for installation
RE-START operation manual
Warranty
3-year warranty (subject to manufacturer terms)
Note
If the battery is located under the fairing and the button is inaccessible, you can use the separately sold RE-START REMOTE (external switch) to perform an emergency restart without removing seats or exterior panels.
Before you order
〇 Regarding import consumption tax
At Shafutoya Shopping Site, we cover the import consumption tax incurred during import on our end, 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 vehicle specifications (USDM). Please confirm whether the part is compatible with Japanese domestic models (JDM) before placing your order. (If you are unsure if the listed product fits your vehicle, please feel free to contact us. Our support team will be happy to look it up for you.)
If you place an order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if items are sorted by selecting the model year, manufacturer, and vehicle model in the tabs on our top page, this does not guarantee direct, unmodified fitment on Japanese-spec vehicles.
All products have been translated into Japanese using translation software. There may be confusing expressions, so please contact us before ordering if you have any questions.
○ Regarding shipping
Shipping costs are paid at the time of checkout. Shipping estimates are calculated automatically when you enter your shipping address on the checkout page. For large items such as body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping cost and the actual cost. In such cases, we will contact you individually via email.
Basically, all products are shipped internationally from our U.S. warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please allow yourself enough time when ordering. If you are in a hurry, please contact us in advance to confirm delivery times. Note that all products are transported by air. They are not shipped by sea.
○ Regarding compliance with Japanese vehicle inspection (Shaken)
All products we handle are basically designed and manufactured outside of Japan. Please note that they do not conform to the "Japanese vehicle inspection system," and we cannot provide strength calculation documents or similar paperwork for the purpose of Japanese inspections. Therefore, all parts are sold for the purpose of "circuit use, private land, or off-road use," and installation and use are at your own risk.
○ Regarding warranties
Please inspect the contents immediately upon arrival. Since all products are shipped internationally from outside of Japan, there may be shipping damage to the shipping box or the product. We will only handle returns, refunds, or exchanges for defective products, items damaged during shipping, or incorrect items if notified within 7 days of receipt. Please understand that for products sold through us, warranty support will be handled "exclusively through us." We do not provide support through other companies or distributors located within Japan.