View Single Post
  #81   Report Post  
posted to rec.boats.cruising,rec.boats.building
Pete C Pete C is offline
external usenet poster
 
First recorded activity by BoatBanter: Jul 2006
Posts: 41
Default Clueless in (not Seattle) Amps, etc.

On Jul 27, 2:40 pm, Skip Gundlach wrote:
..
I'm obviously missing a great deal of intelligence here.

I had thought we'd properly sized our bank and input sources to allow
for our anticipated usages.

stuff snipped

Hi Skip,

This is what I'd do:

"For those who know a bit about electrics and can use a hydrometer I
would propose:

Do an energy budget/audit.

Size the battery bank for 40% DoD (depth of discharge) on a normal
days/period of use

Use the hydro to verify the above a few times as well as check the
batts are getting fully charged.

Use the hydro to check a few times that an exceptional days/period of
demand doesn't draw the batts below 80% DoD"


If you do the above why not write it down as well as charging times
etc in a log and post it.

I'd keep the solar/wind for now, just treat it as 'gravy' to stretch
the time between charging or reduce the charging time.

I won't say the above is the full solution, but is a worthwhile
learning exercise. There's probably some more advanced stuff to learn
but you have to do the basics first.

Any comments from other people?

cheers,
Pete.