Antigravity ATX20-HD 12V ATV Battery 780CA (30Ah Heavy Duty)

Antigravity ATX20-HD 12V ATV Battery 780CA: The Most Capacity You Can Bolt Into a Grizzly or Outlander

The ATX20-HD is Antigravity's heavy-duty take on the big-quad case: a full 15Ah lithium pack (30Ah lead-acid equivalent) and 780 cranking amps in the same YTX20L footprint the Yamaha Grizzly 700 and Kodiak, the Can-Am Outlander and Renegade, and the Polaris Sportsman 850 were built around, at 5.18 lbs. That is roughly twice the capacity of other lithium batteries in this size.

It is the battery for a quad that works: winch, plow, light bar, heated grips and a two-way radio all draw at idle, and the HD has the reserve to feed them and still crank a 1000cc twin. There is no RE-START reserve on the HD. Instead it carries a lighted voltage indicator on top, so one press tells you where the battery stands.

Why the ATX20-HD in your quad

• 780 cranking amps for 700 to 1000cc twins, hot or cold
• 30Ah lead-acid equivalent (15Ah lithium, 192Wh): the most capacity in a YTX20 case from any brand
• 5.18 lbs replaces a lead-acid brick that weighs close to 14; sealed, shock and vibration resistant
• Replaces YTX20, YTX20L-BS, YTX20H-BS, YTX20HL-BS, YTX15L-BS, YIX20HL and the GYZ20 family (15 OEM sizes)
• Push-button voltage indicator; 4-terminal design fits either terminal layout
• Full BMS: over-charge, over-discharge, thermal protection, cell balancing

Antigravity Heavy Duty RE-START Battery Video Review

ATX20-HD Heavy Duty Specs for Nerds

Fits the Yamaha Grizzly 700 and 450, Kodiak 700 and 450, Can-Am Outlander 400 through 1000R and Renegade 500 through 1000R, Polaris Sportsman 850 and XP 850 (2010 to 2021), Honda Rincon 680, Arctic Cat Mudpro 1000 and other quads on the YTX20L case. If the quad runs stock accessories and you want the built-in jump start, the ATX20 RE-START is the pick; the HD is for capacity. Check your OEM code against the list above, and if you are not sure, we will confirm fitment before you order.

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.