Doing otherwise is called series and you end up with 24 volts which results in no more truckit disappears in a flash of fire and a puff of smoke. The risk with those setups of course is that you can forget to isolate the batteries at the end of the day and end up possibly running both down.
Noco Series And Parallel Charging Support
How to hook up two batteries in a truck. Negative from battery 2 to battery 1 you must connect your 12 volt batteries in parallel on a 12 volt system. Parallel results in the same voltage twice the amps and twice the reserve capacity. If you install a second battery in the caravan link the two together as shown in drawing two then connect the positive from your solar regulator to the positive on battery b and the negative from your solar regulator to the negative on battery a that way any voltage drops will be equal between the two batteries. Stacey walks you through different ways you can wire dual batteries in your vehicle and talks about what is the best way. Here is a closer shot of the noco battery isolator that i had installed for my dual battery setup. Screw the tray into the surface like the floor of the trunk then drill a hole nearby to route the cables through.
Mount a battery tray in the chosen location using a tray that fits the second batterys size. The biggestonly problems with dual batteries are the space occupied by the extra battery and the weight two typical dry cell battery will weigh over 100 pounds see all 8 photos but odyssey had. Make sure you dont hit any other components like the fuel tank when drilling and screwing.
Gallery of How To Hook Up Two Batteries In A Truck
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