Then I need to re-read your Peukert exercise.

Let's see . . . basic equations . . . definition of units . . . mumble,
mumble . . . example with a 7 A/H fridge on one 85 A/H battery . . .
mumble, mumble . . . best case, worst case . . . 2 amps ... mumble,
mumble . . . 25 A/H example showing bigger difference . . . mumble,
mumble . . . then summary . . . oh there it is: "...the larger your load
currents, the more disadvantage there is in drawing from only one
battery at a time."

It's the "one battery at a time" thing that I missed. It's less
efficient to deeply discharge and recharge smaller batteries than to
more lightly discharge and recharge a larger battery.

I /knew/ that old man Peukert would get his messy hand into this. That
guy was a piece of work. Couldn't leave well enough alone.

--
Rocky J Squirrel
84 Westfalia: Mellow Yellow ("The Electrical Banana")
74 Westrailia: (Ladybug Trailer company, San Juan Capistrano, Calif.)
Bend, OR
KG6RCR

David Beierl wrote:
> At 06:01 PM 8/13/2010 Friday, Mike \"Rocket J Squirrel\" wrote:
>> For a fellow with fairly high appliance current draw a bunch of little
>> batteries might be quite an improvement over one great big ol' battery.
>
> It's the aggregate capacity of the bank that matters, not the individual
> members.
>
> d