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Ignitions and Electrical› Charging Systems

Antigravity

ATX12-HD-RS RE-START Lithium-ion Battery

$284.99 $249.99 Save $35.00

SKU: AG-ATX12-HD

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Special Order
Ships in 4–6 weeks
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$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Overview

The Antigravity ATX12-HD-RS is a high-power, lightweight lithium-ion battery designed as a replacement for YTX12 case size lead-acid batteries. It features Antigravity's RE-START Technology, which allows the battery to jump-start itself from a sleep mode when it senses it's about to go dead. This HEAVY DUTY version offers increased capacity and cranking power over the standard duty ATX12-RS.
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The Antigravity ATX12-HD-RS is a hi-power, lightweight lithium-ion battery built with groundbreaking RE-START Technology, enabling it to jump-start itself, preventing you from being stranded with a dead battery. This HEAVY DUTY model provides more capacity and cranking power for demanding applications. Constructed with the safest Lifepo4 Lithium chemistry and a full Battery Management System (BMS), it includes protections against over-discharge, over-charge, and thermal issues, along with real-time cell balancing. Its new 4-terminal design allows for easy installation in any orientation and accommodates various connection setups. This battery is designed as a direct replacement for numerous OEM battery sizes, including YTX12, YTX14, YTX20CH, and GYZ16H models. It is suitable for everyday use in bikes up to 1500cc and is an excellent choice for Touring and Adventure bikes requiring extreme power and capacity. However, it is specifically noted that this battery is NOT for use in Automotive applications or Personal Watercraft (PWC). For custom V-Twin applications over 103 cubic inches with high compression or modified motors, specific other Antigravity models are recommended due to the high current draw of these larger V-twin motors. When charging, it is imperative to use only Lithium-specific motorsport chargers.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandAntigravity
Part NumberAG-ATX12-HD
CategoryIgnitions and Electrical
5,000+ Trusted brands
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(760) 282-4645 hello@motormia.co

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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