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Old 12-16-2009, 05:13 PM   #1
Join Date: Jan 2009
Posts: 66
Default Add A Starting Battery ?

Hi All.

I have 2 dual purpose batteries connected to a charger and perko switch, but was thinking of adding a starting battery. Could I just remove the cables to the 2 batteries and put a battery on the other side of the engine compartment. I wouldn't think it would need to be connected to the charger or the perko.

Just a thought.

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Old 12-16-2009, 06:50 PM   #2
Join Date: Sep 2009
Location: Almere, Netherlands
Posts: 710
Default Re: Add A Starting Battery ?

you can connect the starting battery at position 1 at your switch, and connect the other 2 batteries at each other and than connect them at position 2

so if you buy a starter of 120 amp and already have 2 batteries of 200 amp, than you have 120 amp on position 1, and 400 amp on position 2,

i dont know what kind of boat you have, but if you dont have shore power, make a connexxion at the outside of the boat directly to your motorcompartiment and install a battery charger, then when your somewhere in a harbour with the boat and can take power from the land, you can use everything, and at the same time the batteries are loaded.

succes, ed

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Old 12-17-2009, 03:31 AM   #3

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Join Date: Nov 2005
Location: Everett Wa
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Default Re: Add A Starting Battery ?

your gonna need to change the wiring to parallel battery setup....then you can connect to BATT 2 position....

second thing to concider is the size of the batt charger...

might wanna do some research on that...but why change to a start batt...they aren't as deep cycle as a regular deep cycle batt...

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