John: You are approximately correct. The Mfg. will have a spec load and a spec low voltage where the load cuts off. A greater load than this spec and you should obtain less A/H and less than this spec load, you will receive a greater A/H rating. The hard part is to find the Mfg specs. Fred W5VAY
----- Original Message ----- From: "Johnny" <[EMAIL PROTECTED]> To: <Repeater-Builder@yahoogroups.com> Sent: Monday, May 22, 2006 10:02 AM Subject: [Repeater-Builder] Is my math right >A 350 Ah battery with a constent 4 amp draw will last about 87 hours ?? > > Johnny > > > > > > > Yahoo! Groups Links > > > > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/