B12.SECU incorporates safety switch and polarity reversal alarm for increased safety in operation. The 12V B12.SECU delivers outstanding performance for jump starting diesel or petrol-based light vehicles and small trucks, incorporating an integrated safety switch and polarity reversal alarm for maximum safety in use. Encased in an exceptionally strong housing, this robust 12V booster provides a capacity of 22Ah (AMG waterproof battery) and a cranking value of 1300A. With high quality, pure copper cables offering double insulation of 25mm2 - 155 cm, the innovative B12.SECU includes a clear charging indicator and comes with a 12V 2A charger with floating mode. A 300A fuse offers superior overall protection, and the built-in cigarette plug is protected by a 16A fuse.