I have a 12 volt AGM battery for my 4 wheeler? Do I need a special charger to charge it up? I've just been using the Interstate 900 mah float charger that I got 10 years ago to keep it charged up in the wintertime.
The electronics in my ATV were drawing down the AGM battery when sitting for months at a time so I got a Battery Tender brand maintainer that I keep plugged in and have had no issues since.