BJ's Warehouse, Sam's Club, and probably Costco all sell batteries in the right size (group 41) with the vent hose. I got two Exides at BJs for about $45 each. Sam's sells Eveready and Champion. -- Dan Simoes dans@ans.net ANS Communications http://coimbra.ans.net/dans.html 100 Manhattanville Road (914) 701-5378 (voice) Purchase, NY 10577 (914) 701-5310 (fax)