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You can\u2019t run fridges or LED camp lights without an auxiliary deep cycle battery.<\/strong> <\/span><\/p>\n If you run these things off your starter battery you won\u2019t be able to start your engine in the morning \u2013 it will be flat. Also, starter batteries are designed to put out huge current over short bursts to start your engine. They aren\u2019t designed to be drained too many times before the plates inside get damaged and wear out early. Deep cycle batteries<\/a> are designed to be drained to about 50% many times without shortening their lifespan.<\/span><\/p>\n <\/p>\n Smart battery isolators<\/b><\/span><\/p>\n So how do you recharge your deep cycle battery<\/a> automatically?<\/span><\/p>\n You connect the deep cycle battery<\/a> to your 4WD so it charges from the alternator while you drive, just like your starter battery does.<\/span><\/p>\n To do this you need a smart battery isolator to connect and disconnect your batteries automatically.<\/span><\/p>\n This joins your starter battery to your second deep cycle battery<\/a> so the alternator can charge them both while you drive.<\/span><\/p>\n It also automatically disconnects your starter battery when it senses a voltage drop below 12.8V when you turn your 4WD off, and reconnects it above 13.3V when you start your vehicle back up again. This allows you to still power your Adventure Kings 60L fridge<\/a> and camp lights<\/a> from your second battery without draining your start battery.<\/span><\/p>\n You can get an easy Adventure Kings DIY dual battery kit<\/a> with a smart isolator and an Adventure Kings deep cycle battery<\/a> from 4WD Supacentre at a fraction of what you\u2019d pay elsewhere.<\/p>\n <\/span><\/p>\n Which Battery should I run?<\/b><\/span><\/p>\n It\u2019s all well and good to have a cracker of a charging system in your 4WD, but it won\u2019t do any good if you don\u2019t have a good quality battery to charge! A lot of modern 4WDs don\u2019t have enough room under the bonnet for a big auxiliary battery. But luckily the Adventure Kings AGM battery<\/a> can be fitted in a bunch of other positions.<\/span><\/p>\n