Re: [Repeater-Builder] battery question

[Doug Zastrow]

I have in service an Interstate brand 8D-PHD lead acid deep cycle battery that is nine years old and at nearly 80% of its brand-new capacity.  It is in stand-by service on a two-meter repeater.   I owe its longevity to:    * Constant float of 13.40 VDC  * Regular checks of electrolyte level topped off with distilled water  * Regular specific gravity checks to watch for cell degradation  * Regular cleaning of the battery case and terminals  * Semi-annual discharge followed by an equalization charge and then return to float   The site has an excellent ventilation system so the owner is not concerned about venting.   This battery has worked beautifully in my situation. YMMV.   Doug   ----- Original Message ----- From: Q To: Repeater-Builder@yahoogroups.com Sent: Saturday, January 14, 2006 10:10 AM Subject: Re: [Repeater-Builder] battery question NO!Car batteries will sulphate and vent dangerously explosive hydrogen gas,are meant to be discharged quickly and recharged immediately and dont last long in backup service.Most site owners wont allow them to be used. Sealed lead/acid will last 5 to 10 times longer and are designed for the intended purpose.There is lots of good info on the web,do a search! 73,Lee [EMAIL PROTECTED] wrote: > At 1/14/2006 01:09, you wrote: > >>The sealed lead acid cells have a much better deep cycle capacity. Just >>don't overcharge them. >> >>Dave WB2FTX > > > Given that batteries used in backup service rarely get cycled at all, > wouldn't car batteries be a more cost-effective choice? (assuming the gel > cels were not a gift) > > Bob NO6B   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/   YAHOO! GROUPS LINKS  Visit your group "Repeater-Builder" on the web.    To unsubscribe from this group, send an email to:  [EMAIL PROTECTED]    Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.