Are batteries isolated?
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Elder User
Joined: Dec 2001
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From: Central WA USA
Are batteries isolated?
I just bought new batteries 2 months ago and I drained the batteries on accident. Somehow my toolbox light was left on over the long weekend and drained the batteries. So the question is why did both batteries go dead? Aren't these batteries isolated so draining one won't drain the other?
question 2.
How much damage did I do to the batteries by draining them completely?
question 2.
How much damage did I do to the batteries by draining them completely?
Postmaster
Joined: Jan 2004
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From: colorado
Originally Posted by ColtM4
So the question is why did both batteries go dead? Aren't these batteries isolated so draining one won't drain the other
Last edited by wlihntr; Dec 28, 2004 at 12:40 AM.
Senior User
Joined: Dec 2003
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From: Marietta, GA
They are likely wired in parallel, neg to neg and pos to pos.
Hooked in parallel, amperage doubles (assuming similar batteries). Amperage is what you really need on the cold mornings when you are starting that diesel. Hooked in series, neg to pos (like a flashlight) results in doubling the voltage.
You also probably did not damage batteries.
Hooked in parallel, amperage doubles (assuming similar batteries). Amperage is what you really need on the cold mornings when you are starting that diesel. Hooked in series, neg to pos (like a flashlight) results in doubling the voltage.
You also probably did not damage batteries.
Posting Guru
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Originally Posted by V8muscle
They are likely wired in parallel, neg to neg and pos to pos.
Duncan
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From: colorado
Originally Posted by Frobozz
Not just likely, it's a fact! In series, it would be a 24V system (or they'd need to be 6V batteries.) Because you can't buy a battery with upwards of 2000AH capacity, or because it wouldn't fit in one spot under the hood even if you could, Ford gets the needed capacity by using two fairly standard heavy duty batteries wired in parallel, tucked in on either side of the engine compartment.
Duncan
Duncan
