High performance two 22Ah AGM batteries housed in robust anti-shock casing, specially formulated to jump-start engines up to 5L diesel and 8L petrol. Easy-to-read digital voltmeter which can also be used to check the voltage of the vehicle’s alternator. 0/12/24V Rotary switch for spark-free connection. Supplied with fully isolated industrial grade brass clamps with 100% pure copper cables. Reverse polarity alarm, both visual and audible and short circuit protection system. 12V Output socket can be used as a memory saver, as well as powering accessories such as mini compressors. Supplied with an automatic 15V 3A smart charger and maintainer.