Antigravity ATX12-HD 12V Jet Ski Battery 480CA (w/ Re-Start)

Antigravity ATX12-HD 12V Jet Ski Battery 480CA w/ Re-Start: Heavy Duty Cranking for the Spark, With a Jump Start Built In

A Spark with an audio kit, a long day at anchor and a lift that only gets visited on weekends asks more of a battery, at the exact moment a dead one hurts most. The ATX12-HD is the heavy duty version of Antigravity's RE-START line: 480 cranking amps, 16Ah of capacity, and the same self-rescue trick. If the battery ever runs down, the BMS sleeps it with a starting reserve intact. Push the button, start the ski, get back on the water.

It drops into the YTX14L-BS tray Sea-Doo fitted to the 2024 and newer Spark, sealed and vibration resistant, with terminals on both sides so either layout works without adapters.

Why the HD earns its name on the water

• 480 cranking amps with 16Ah lead-acid-equivalent capacity for audio and accessory-heavy skis
• RE-START reserve and push-button jump starting: never stranded on the water by a drained battery
• 3.0 lbs where lead acid runs 10 or more; no acid to spill in a hull
• Replaces YTX12, YTX12-BS, YTX14, YTX14-BS, YTX14H, YTX14L, YTX16-BS, YTX20CH, HYB16A-AB, GYZ16H and GYZ16HL
• 4-terminal design, any-orientation mounting
• Full BMS protection with real-time cell balancing

Antigravity Heavy Duty RE-START Battery Video Review

ATX12-HD RE-START Specs for Nerds

Made for the 2024 and newer Sea-Doo Spark and Spark Trixx on the YTX14L-BS case (2014 to 2023 Sparks run the YTX20L case and take the ATX20-HD Jet Ski Battery). Match your OEM code against the list above and you are done.

Backed by Antigravity's 3-year powersports warranty. Questions about fit or rigging? A real USA battery tech picks up at 1-800-LBZ-POWR, Mon-Fri 9a-6p EST.