Re: [pvusers] Battery Time

[Bill Schudlich <bill_s@outsidemag.com>]

On 11/11/2002 6:18 PM, Michael Welch <michael.welch@homepower.com> wrote:
>Hi Bill. This doesn't make sense to me. Usually when your batteries 
>are weak, the voltage goes up high and fast during equalization. 
>What is the voltage after equalizing, no load, and the batteries 
>have rested awhile? 

12.2v

And then under load?

Didn't check that.  How much load?  a TV, water pump?


>Personally, I prefer flooded cells, though I have never run AGMs. 
>They hold more energy per pound and per dollar. And a biggie is that 
>they are more forgiving of less than ideal charging-discharging routines. 
>And, they are easier to equalize if some of the cells are underperforming.

By this, do you mean that AGM batteries are prone to "memory" type problems? i.e. won't hold a full charge if they get used to being at a certain (less than full) level of charge.



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Bill Schudlich
Santa Fe, NM  
bschudlich@outsidemag.com

Outside Magazine - Celebrating 25 Years Outside
http://www.outsidemag.com/
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