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wire it in series
Depends on the battery size. If your boat is a 12 volt system and you wire two 12 volt batteries in series you then have 24 volts. If the batteries are 6 volt batteries you will be fine. If you have a 12 volt system on your boat and want to use two batteries then wire two 12 volt batteries in parallel. You will still have 12 volts but will have double the amperage available and this will extend the running time of the batteries.
You do not need three 12 volt batteries to get 24 volts, all you need is two batteries. So I assume by using three batteries you want to increase the amperage. Wire two of the batteries in series and then wire the third battery to the second battery in parallel and you will have 24 bolts. Or you can just wire two 12 V batteries in series to get 24 V.
Yes, series the two batteries to produce 12 volts. Tap off of the two end terminals for the 12 volts. Tap off of the series jumper for the 6 volts of one of the batteries. The two 6 volt batteries can not be paralleled in this connection as they will short out.
Connect three 12 volt batteries in series. You will triple the amperage but the volts will remain at 12. Click the link
Yes, but know that when connected in series you will increase the voltage but the amps will stay the same as one battery. If you wire them in parallel you increase the amps but the voltage stays the same. Example: Connect two 12 volt batteries in series and you then have 24 volts with the same amperage as one battery. Connect two 12 volt batteries in parallel and you will have 12 volts but the amperage will double.
Wire minus - to positive +. Know that this will increase the voltage but the amps will stay the same. Wire two 12 volt batteries together in series and you have 24 volts. Click the link.
Depends on if you want a series or parallel circuit. In a series circuit if you wire six 12 volt batteries together you will end up with 72 volts. Wire the same six 12 volt batteries together in parallel and you will still have 12 volts. In a parallel circuit you just wire all positive posts together and all negative posts together. In a series circuit you would wire positive to negative to increase the voltage with each battery added.
Two 6 volt batteries in series, yes. In parallel, no.
use two 12 volt batteries in series.
you only need two 12 volt batteries to make 24 volt. connect them in series
Two six volt batteries in series makes 12 volts so switch the charger to the 12 volt position.