>> Shoot, they didn't even allow those things 'indoors' on ships! They were in their own ventilated locker outside the radio room.
They do allow them and need them on submarines and these batteries are big enough you could get in the jar! Only time they are vented outside is when performing an "equalizing charge." However, they do ventilate the area to prevent H2 buildup in pockets. Get out your chemistry book and work out the molar equations, for the average auto/boat deep cycle battery the amount of hydrogen released during a normal charge is minimal. Very high charge rates (60 120 amp/hr) releases H2 quicker. But there is still a limited amount. Additionally, there would be no H2SO4 or H2O left. Even if all of it was used up you are only talking a few grams (Liters) of Hydrogen and that would be released over several hours. Rich -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.375 / Virus Database: 267.14.21/236 - Release Date: 1/20/2006 _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com