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Old 11-04-2012, 22:58   #16
noelex 77's Avatar

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Re: Gell Cell Batteries

Originally Posted by btrayfors View Post

I think you missed it. The OP has an inverter/charger unit. Typically, these use the very heavy cables to the batteries both for inverter use during which they can draw 100-300 amps or so, depending on the size of the inverter and its load, and for charging the batteries. In other words, the current flow is two-way, not one-way.

You're NOT going to put a diode in that circuit.

Good point. A diode will not work in a combined inverter/charger.

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Old 12-04-2012, 10:24   #17

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Re: Gell Cell Batteries

As I said, it is a kludge. It will avoid overvolting during the bulk charge, and when the charge rate drops, the voltage will indeed creep back up. Some of that can be "tuned" by the choice of loss. Some by the decision to use the charger/inverter (which is not the sole charging source!) and simply shut it down once voltage goes too high.

But the kludge will still prevent the worst-case scenario, of "full voltage full power" when the batteries are hungry. Which is why it is a kludge, not a complete and perfect solution.

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