TMS AGM YTZ10S ATV Motorcycle Battery for Honda Yamaha Honda Suzuki Spill-proof design means virtually no possibility of leaks; Dimensions: 6" x 3.4375" x 3.6875" Maintenance-free, never needs re-filling. Checking or refilling the acid levels is not necessary. Advanced lead-calcium technology pumps up starting power Long lasting which means High Performance Maintenance Free batteries will last up to three times longer than conventional batteries. AGM technology hold voltage longer and need less charging in standby or storage mode.