Battery sizing for running the SW [RE-wrenches]

[Doug Pratt]

carl reuter wrote:

>  what is the minimum size battery bank
> to use with a Trace SW if its used primarily as a Grid tie system?

Early in the SW history Trace suggested "about 200 ah" as the minimum. I've heard rumors that SW units with really small battery packs
have trouble maintaining a stable float voltage, particularly at night, and eat a lot of charging wattage. But I haven't had hands-on
experience with really small battpacks. There's no question SW units are happier working with larger batteries.

-Doug Pratt


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