Can-Am Defender Motobatt AGM Battery Replacement, 21 Ah / 320 CCA, 20% More Than OEM, Multi-Terminal, HD5 / HD8 / HD10

Your Defender is supposed to be the machine that always starts. When the factory battery gets weak, swap it for a Motobatt AGM replacement that's stronger than the one Can-Am put in. It delivers 21 amp-hours and 320 cold-cranking amps, which is about 20% more capacity and 20% more cranking power than OEM. That's welcome on cold mornings and on machines loaded with lights, a winch or a cab heater.

Why It's Better Than the Stock Battery

• 21 Ah capacity and 320 CCA, each roughly 20% higher than the OEM battery.
• Heavy-duty lead-calcium grids give the internal plates more strength and a longer service life.
• AGM (absorbed glass mat) separators cushion the plates against vibration and sharp impacts, so the battery holds up to rough ranch roads and rocky trails.
• Multi-terminal design adds extra connection points for accessories, so you can wire in a light bar, radio or winch without stacking everything on the main posts.
• Factory activated and sealed. Check the charge, install it and go. There's no acid to add.
• 12-month full replacement warranty from Motobatt.

Specs

• Voltage: 12 V
• Capacity: 21 Ah
• Cold-cranking amps: 320 CCA
• Dimensions: 6.89" L x 3.43" W x 6.10" H
• Replaces OEM part numbers 715900316, 515175642, 410922990 and 410301203

Fitment

Replaces OEM Part #: 715900316, 515175642, 410922990, 410301203

Fits the Defender HD5, HD8 and HD10 families, including MAX, XT, XT Cab, DPS, Pro, 6x6, Limited, Mossy Oak, XMR and Lone Star trims in the years shown. 2022+ HD7 and HD9 models aren't listed for this battery, so check the chart before ordering.

In the Box

• Motobatt 12 V AGM battery, factory activated

Who It's For

Defender owners with a slow-cranking or dead battery, and anyone adding electrical load like a plow, winch, heater, stereo or extra lighting. A stronger battery gives you more reserve for those accessories and more confidence on cold starts. Browse more Can-Am Defender electrical parts and Defender sound systems to put that extra capacity to work.

Install Notes

Make sure the battery is fully charged before you install it. Disconnect the negative cable first, then the positive, and lift out the old battery. Drop the Motobatt into the tray, connect the positive cable first and then the negative, and secure the hold-down. Recycle your old battery at a parts store or recycling center.