I would not recommend using an RE battery for standby/back up use.

There is a similar problem that I have seen. People use 6 volt golf cart 
batteries in their motorthome and then stay plugged into shore power for long 
periods of time. I see premature failures from this type of use. A golf cart 
battery is designed to be cycled, not left in float service. Without exercising 
the battery by occasionally discharging it and then charging and equalizing, it 
is likely to fail early. My opinion is anecdotal but I'm convinced it is true.

Larry Crutcher
Starlight Solar Power Systems
(928) 342-9103



On Feb 15, 2012, at 11:38 AM, [email protected] wrote:

> I've been happy with Trojan batteries. They do say that they need up to 100
> cycles to reach full capacity.
 
so what does this mean for grid ties/battery back-up?
 
todd
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