Joe Strout :

In article ,
Earl Colby Pottinger wrote:

I follow, but 6 months still seems a long time to me. Rotate out every
month or so seems like a good compromise.

That may well be the plan, but you don't want to operate up against the
design limits of your components for something critical like this.
Requiring that the craft can survive for 6 months, while fully intending
to never leave one up more than a month, seems very prudent to me.

I think I got you. I used to use marine batteries to power the lights up at
my cabin, problem was if someone else left the outside lights on at night the
batteries would be badly drained and sometimes I would have to leave before I
could recharge them. Over the yearssometimes I would not get back to the
cabin as soon as I hoped and the batteries ended up badly damaged left lying
around discharge. Two years ago I go me some big storage batteries, even
with the lights on all night they are still 90% charged in the morning - now
if I can't charge them up right away they do not end up damaged.

Design for abuse and the abuse become nothing.

Earl Colby Pottinger


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