Pollywog writes: > Yes, a vented enclosure should do the job but what of the batteries that > are sealed (gelled)? They are "low gas" and unspillable but overcharge them and they'll vent. > Wouldn't that dispose of the problem of gases emanating from the battery? It's a non-problem. Unless you are dealing with a phone company battery room the quantities are too small to matter. Just put them in a covered plastic box and don't worry about it. -- John Hasler