ExpertPower ETX20L-BS 12v20ah YTX20L-BS,YTX20HL-BS, GTX20LBS 12v 20 Ah Replacement Sealed Lead Acid Motorcycle Battery Yamaha Big Bear 12V 20Ah 270 cold Cranking amps (CCA) sealed lead acid (SLA) battery (H)6.0" x (L)6.9" x (W)3.5" Polarity: [- +], Maintenance Free and Fully Charged 90 days money refund Policy and 1 year . Free shipping 1-3 days - average 2 days - occasionally 4 days in remote areas.