Optimate 3 Quad bank, the fully sealed 4-bank battery saving charger & maintainer for 12V AGM, GEL or STD batteries – The dealer’s choice for busy workshops. OptiMate 3 chargers are trusted by global motorcycle OEMs, including Honda, Triumph, Suzuki, Yamaha, Kawasaki and more. Independently charge, test and maintain 4 x 12V lead-acid (STD, AGM, GEL) batteries – always fresh, always ready! Saves ‘dead flat’ sulphated batteries from as low as 2V. Tests automatically – indicates if there is a battery problem OptiMate’s 24-7 smart maintenance guarantees more battery power, longer battery life!