HI all I purchased some batteries that had been stored for two years dry. When actavated they seemed OK but never had the full capacity, and seemed to die faster than they should. THIS IS MY OBSERVATION AND DOES NOT HAVE MEASURMENTS TO BACK UP. daryl
--- On Tue, 8/5/08, Phil Undercuffler <[EMAIL PROTECTED]> wrote: > From: Phil Undercuffler <[EMAIL PROTECTED]> > Subject: Re: [RE-wrenches] Battery Question > To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org> > Date: Tuesday, August 5, 2008, 1:55 PM > Surrette has a technical bulletin on activating a > dry-charged battery > available at http://www.surrette.com/?q=node/46 > <http://www.surrette.com/?q=node/46> > > It states: > > > > Shelf life of a dry charge battery is five years plus. > Store in a cool > dry area. The positive plate has an unlimited shelf life. > The negative > plate will revert to lead oxide when in the presence of > water and > oxygen. If this should happen, the battery is not ruined, > but activation > will take considerably longer! > > > > So, basically unlimited shelf life on dry charged > batteries, keep them > cool & dry, but if moisture gets into the cell > activation will take a > lot longer. Hope that helps. > > > > > > Phil Undercuffler > > Director, Battery-based and Off-grid > > Conergy Sales & Systems, Americas > > Our World Is Full of Energy > > 1730 Camino Carlos Rey Suite 103 > > Santa Fe, NM 87507 > > [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > > Direct | 505.216.3841 > > Toll Free | 888.396.6611 x4841 > > Fax | 505.473.3830 > > www.conergy.us <http://www.conergy.us/> > > ________________________________ > > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On > Behalf Of David > Palumbo > Sent: Tuesday, August 05, 2008 12:33 PM > To: RE-wrenches > Subject: Re: [RE-wrenches] Battery Question > > > > Kirpal, > > > > Ask Surrette directly on this. I recall having this done on > an order of > batteries being shipped to Africa about ten years ago. They > had to be > special ordered without electrolyte (cost more for this - > an extra step > for the manufacturer as it was explained to me) and also > had to be dried > out and sealed (as I remember) so that there would be no > corrosion > inside the cell. I think that the shelf life was a year or > less before > they needed to be filled with electrolyte. > > > > Dave Palumbo > > Independent Power LLC > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf > Of Kirpal > Khalsa > Sent: Tuesday, August 05, 2008 9:41 AM > To: RE-wrenches > Subject: [RE-wrenches] Battery Question > > Hello All......we have a customer who is interested in > storing > some Surrette batteries with no electrolyte as a back up > set of > batteries......is there any time period that you would > expect these > batteries to remain healthy....do they start losing life > after some > time? how long can you store batteries with no electrolyte > and still > expect them to remain in good condition when you want to > begin using > them? > Thanks!!! > > -- > Sunny Regards, > Kirpal Khalsa > NABCEP Certified Solar PV Installer > Renewable Energy Systems > > _______________________________________________ > List sponsored by Home Power magazine > > RE-wrenches@lists.re-wrenches.org > > http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org _______________________________________________ List sponsored by Home Power magazine RE-wrenches@lists.re-wrenches.org http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
