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(ET) More on gel cell charging
I've a couple more questions about this:
1. A < 14.3v limit on charging gel cells was mentioned. I gather this
applies to ALL 3 phases?
The practical reason I ask, is the attempt to charge some 6v 4Ah gels
with a wall wart. One I have has a rated 9v 200mA output. Charging
voltage on a fairly dead battery starts out at 6.7 or so and gradually
rises. Could I simply keep an eye on this and stop once it reaches 7.1v
or so? At that point I would still not have a fully charged battery,
but if I understand correctly, I would not want the voltage to go
higher. Could I then place a resistor in series, to get the appropriate
voltage, and continue?
Or, would it work to make a voltage divider--say, 10 and 35 ohms, which
would do the whole charge, never exceeding 7.2v?
And last, would a 'smart' charger for 6 and 12 v batteries be 'too much'
for these little 4Ah guys, or is it likely smart enough treat them gently?
(David, thanks for the tutorial on gels several weeks ago. It did help.)