A Link 10 will do this as it knows the banks ah capacity and Peukert exponent. I think just counting ah would be good enough if you derated the bank to its 25 amp discharge time, which most mfrs publish.
Denny Wolfe
www.wolfEboats.
----- Original Message -----
From: aweekdaysailor
To: electricboats@
Sent: Wednesday, July 22, 2009 8:47 PM
Subject: Re: [Electric Boats] Do new batteries need to be broken in?
How can you know when you are at 40%? Under load, the batteries are always lower than "resting state" voltage - which is what everyone says to measure - so how do we figure out what 40% is? Should we estimate from amp-hours and capacity?
thx
-Keith
--- In electricboats@
"...in my book, 40% charge, I like running to 50% charge on my investment. I then will start the genset if I must go further."
[Non-text portions of this message have been removed]
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