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How to Charge a 6-Volt Positive Ground Battery

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Although most vehicles use a 12 volt battery that negatively grounded, some vehicles that were still in use as of 2010 use a 6-volt electrical system that is positively grounded. All vehicle batteries must be grounded to a substantial metal object such as the vehicle’s frame or engine block, whether it be a negative or positive ground system, although the charging instructions are slightly different for each.

Step 1

Switch your battery charger off, or if your charger does not have a power switch, unplug the charger’s power cord.

Step 2

Connect the negative, or black, cable from the battery charger to the negative battery terminal by squeezing the alligator clip at the end of the cable so that the jaws open.