Antigravity ATX12-HD-RS 480A 8Ah lithium cycling accessory
Lightweight 12 V lithium battery with built-in jump-starting delivers 480 cranking amps in a standard YTX12 case
- Product typeAutomotive & Tools
- Built-in jump-starting prevents dead-battery emergencies
- 480 cranking amps deliver strong starting power
- Weighs 3 lbs for easy handling
- Fits YTX12 case size 5.9 x 3.38 x 5.19 inches
- Full BMS with LiFePO4 chemistry protects cells
Replacement for YTX12 lead-acid batteries
The Antigravity ATX12-HD-RS is a lightweight lithium-ion battery designed as a direct replacement for the standard YTX12 case size found in many motorcycles, ATVs, UTVs, scooters, lawn mowers and generators. It fits the same 5.9 by 3.38 by 5.19 inch footprint and can be mounted in any orientation. Riders and powersport owners who need a drop-in upgrade for heavy lead-acid units will find this battery matches the original dimensions exactly.
RE-START button prevents stranded situations
The built-in RE-START technology monitors voltage and puts the battery to sleep before it is fully depleted, reserving enough energy for one more start. Pressing the button on the case wakes the battery so the engine can be cranked immediately without external jumper cables or a second vehicle. This feature removes the need to carry a portable jump pack or rely on roadside assistance when the battery has been drained by accessories or long storage periods.
480 cranking amps for high-compression engines
The heavy-duty version delivers 480 cranking amps and 16 amp-hours lead-acid equivalent capacity from an actual 8Ah lithium cell, providing stronger cranking power than the standard-duty model. Builders with high-compression V-twin or large-displacement single-cylinder engines that demand more starting torque will benefit from the extra current. Buyers whose vehicles start reliably on lower cranking amperage do not need this higher-output variant.
How it compares
Measured against everything we stock in Bike Lights, Racks & Accessories, at today’s prices. Recalculated every night.
- Price $234.99
- Pricier than about 95% of the 211 comparable items (median $25.99).
Specifications
| Product | |
|---|---|
| Product type | Automotive & Tools |
Questions about this item
Does the built-in BMS require any periodic servicing or replacement over the life of the ATX12-HD-RS?
The full Battery Management System is sealed inside the case and has no user-serviceable parts; it protects against over-charge, over-discharge and thermal events for the entire service life of the battery.
Which limit will I reach first during repeated cranking — the 480 A rating or the 16 Ah PbEq capacity?
The 480 A cranking figure is the instantaneous peak; sustained cranking draws heavily on the 16 Ah PbEq reserve, so usable capacity is the practical limit during repeated starts.
How much heat does the ATX12-HD-RS generate when left on a tender all day?
Lithium iron phosphate chemistry and the internal BMS keep self-discharge very low, so the battery stays near ambient temperature during long-term maintenance charging.
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