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From: A Jensen (no email)
Date: Mon Aug 23 2004 - 17:48:05 EDT
Edmond wrote:
I'm planning a house bank of 2000AH (10- AGM Northstar NSB210) batteries in
a box under a settee in the saloon of a 52' trawler. Would a continuous
louvered opening at the top of one side of the box into the saloon be
adequate
ventilation or do I need a special blower and overboard discharge?
Edmond
REPLY
Good choice in batteries!
Since you are using the Northstar batteries then you can get away with it.
However you insurance company might be happier if you connect the vent tubes
on each battery to a collector which lead outside. The Northstar battery is
one of the few with a built in vent cpllector tube for external venting.
The second aspect of battery ventilation is the removal of heat created
during charging.
With 2000 amp hours capacity you can easily drive these with 500 amps and
more if you are careful and use temp compensation.
Most likely your charging source will not be that big, so heat buildup is
not going to be a big problem.
You won't need a blower unless your insurance company insist on it because
they haven't caught up with the technology.
Regards
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