Re: [tesla] Re: Battery power for big SSTC

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "kayaker" <kayaker-at-sbcglobal-dot-net> 

Hello All:

While on the subject of batteries exploding. You could enclose the batery
bank. And vent the enclosure with a marine vent fan. You want too evacuate
the hydrogen gas. The vent fan should be turned on prior to operation and
during operation. Be safe.

Doug
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, September 18, 2003 5:02 PM
Subject: Re: [tesla] Re: Battery power for big SSTC


 > Original poster: Ed Phillips <evp-at-pacbell-dot-net>
 >
 > Tesla list wrote:
 >  >
 >  > Original poster: "Black Moon" <black_moons-at-hotmail-dot-com>
 >  >
 >  > True, Not to mention, when you have a 60 POUND case of lead expload,
the
 >  > results can be quite specatual, old batterys can also internaly short
over
 >  > from stress, and acid is QUITE nasty to get all over you, not to
mention it
 >  > can be boiling hot acid at that point. Id highly suggest a large sheald
 >  > beween you and the bank, and in an area where everything within 20 feet
 >  > being eaten away into a pile of dust won't be a problem.
 >  >
 >  > >As far as abusing the batteries, so what
 >  > >don't we abuse?
 >  > >
 >  > >When pushed to "dead-short" type limits, some car batteries do not go
 >  > >quietly, and clean up is a pain.
 >  > >
 >  > >Matt D.
 >
 > Batteries liberate hydrogen, particularly when charging, and it can
 > easily form an explosive mixture inside the cells which can rupture the
 > case and scatter acid all round.  I've seen this happen three times,
 > once with a "4 pack" of auto batteries in which all of the cells blew
 > their tops, once with a single cell, and once with a regular auto
 > battery.  In  all cases the cause of ignition was a spark in the
 > vicinity of the caps.  Be careful, and particularly don't pull a lead
 > off of a charging or recently changed battery without first making sure
 > the circuit is open.
 >
 > Ed
 >