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From: Pascal Gademer (no email)
Date: Fri Jun 03 2005 - 09:03:30 EDT
i have an inverter bank made of 8 golf cart batteries (4 pairs), protected
by a 300amp fuse as recomemded by xantrex. doesn't it mean i woudl need the
same protection on each pair if this theory is true? 4 300amp breakers not
100?
sounds like a lot of things to go wrong, double the number of connections,
etc...
pascal
miami, fl
70 hatteras 53my
----- Original Message -----
From: <>
To: "LIVE_ABOARD" <>
Sent: Friday, June 03, 2005 12:45 AM
Subject: lv-ab: Batteries in parallel
> OK. The concept is this/ If a single cell in a
> battery (wet, gel, or AGM) becomes shorted (less
> likely in order listed) due to the plating falling
> off and gathering in the bottom, or for any other
> reason, then the other batteries in the parallel
> group will source whatever current is required to
> provide equal voltage. This means that if you have
> done a good job installing the system and used
> heavy gauge wires between the batteries and to the
> breaker panel (we don't use fuses anymore right?)
> then huge amounts of current COULD flow from the
> good batteries to the bad battery.
> In order to prevent the total discharge of your
> battery bank (inevitable otherwise) one should
> install a circuit breaker on the positive post of
> each battery.
> I will be using magnetic 100 amp breakers, the
> fastest-blowing ones I can find.
> The real danger is not fire or explosion,
> although possible, but TOTAL discharge of the
> entire battery bank.
>
> To be avoided, I believe.
>
> Eric Thompson
> S/V Procrastinator
> South San Francisco
>
>
>
>
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>
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