Of course it would, but in practise you should not consider that low of a
discharge. In practise, it should never get below 60%, if you want
reasonable battery life. It is much better to install extra capacity, as it
greatly extends battery life.
Steve

"Glenn Ashmore" wrote in message
...
Interesting question came up this evening perusing the Surrette L16H
battery specs. The specs say they have a 20 hour rating of 400AH and a 50
hour rating of 476AH. Almost 20% more. That is to be expected as total
amp hours increase with slower draw rates. The 20 hour rate is used to
compare one battery against another but if in normal good practice a
bank is only discharged from90% to 40% over 24 hours, wouldn't it be more
appropriate to use the 50 hour rather than the 20 hour rating when
estimating the actual usable amp hours?.

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
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