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From: kaha (no email)
Date: Tue Aug 24 1999 - 20:26:38 EDT
A question?
I have installed two battery banks, both sets are deep cycle 12v
(2x6v):
Bank 1: 2 sets of 12v (2x6v) each set 235amps = 470 amps total.
Bank 2: 1 set of 12v (2x6v) 235 amps = 235 total.
Charging capabilities:
1 alternator 150 amps
solar panels 80 amps (on a good day)(hawaii)
1 charger a/c 45 amps
usage per 24 hours: 90 - 100 amps per day
Discussion:
When two banks of batteries are connected in series/parallel in
order to increase the overall amperage, charging them evenly seems to be
a problem. If the charging system (alt., solar, etc...) is connected to
the front two batteries with the voltage regulator, then, when the
regulator switches to the float stage the back set of batteries are not
at the same point of charge. (like filling a stack of glasses)
So, using this type of set up, the back set of batteries will never
reach float/fully charged state. This could greatly increase the
sulphation (and life) of the back battery set.
Question:
Is there a solution to this.? How can I charge Bank 1 (all)
batteries equally without over charging the front two, or without it
taking forever.
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