Keep your motorcycle battery properly maintained and charged with the selection of Tecmate Optimate Chargers available at Adventure Designs. The Optimate 3+ Desulfating Battery Maintainer and Charger is the proper choice for STD (with removable filler caps), sealed AGM (absorbed glass mat) and sealed GEL 12V lead-acid batteries from 2Ah to 45Ah. The Optimate 4 Dual Program Canbus BMW Edition Waterproof Desulfating Battery Charger/Maintainer is designed for powersport vehicles used on the water and in cold weather conditions. The Optimate 5 with 2.8Amps Waterproof Battery Charger & Maintainer is suited for medium to large 12V batteries, STD (with removable filler caps), sealed AGM (absorbed glass mat) and sealed GEL 12V lead-acid batteries from 8Ah to 120Ah. Adventure Designs ships your order fast, worldwide, and with a guarantee of customer satisfaction.