Thursday, April 28, 2011

Re: [Electric Boats] Re: How do you measure how much battery life is left whlile you are out sailing?

 


Hi Brett,
You can measure the realtime capacity of a wet battery by measuring the specific gravity of the electrolyte. Loaded or resting will not matter. AGM's are a bit tougher. Harbor Freight offers an electronic tester that uses high frequency loading to measure the battery response. I don't know if it will measure realtime capacity under load, but it will show the capacity at rest.

Let the EB list know how it works out.

Be Well,
Arby

--- In electricboats@yahoogroups.com, "m8trixman" <pb@...> wrote:
>
> What is the best way to measure what percent of battery life is left while you are out motoring?
>
> Thanks for taking the time to chime in on this question...
>
> Brett
>

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