Will you can still try the lowcost desulfator circuit I described. 120 Volt AC pass through a rectifier, and a current limiting resistor, connect to battery and give it an observed charge period like a week.
The best price I have seen on an equivelent LiFeP to a T105 is $1500 per 24 volt stack, (a package of connected small cells), they have the problem of limited charge and discharge rates. The max discharge rate is less than a SLI battery and recharge is not as survere limits as LA ) Darryl --- On Sat, 2/13/10, Conrad Geyser <conr...@cape.com> wrote: > From: Conrad Geyser <conr...@cape.com> > Subject: [RE-wrenches] Concordes / desulphator / Lithium ion? > To: "'RE-wrenches'" <re-wrenches@lists.re-wrenches.org> > Date: Saturday, February 13, 2010, 11:59 PM > > > > > > > > > > > > > > > > > > > A bit of a > follow up on a thread of about > three months ago where we had taken over an orphaned bank > of Concorde 12V VRLA, > 10 parallel banks of 4. Thanks for all the input on > this! > > > > > Efforts to > revive via fixed amperage > charging have not proven successful. These batteries > had been sorely > abused. A friend recommends to try a Pulse tech > desuphator, swears by > them. Any experience with one of > these? > > > > > Going with > some big Surettes for replacements. > > > > > Maybe soon > we’ll have some 1000 amp > hour Lithium Ion cells and can put all this lead acid stuff > behind us! > > > > > Conrad > > > Cotuit > Solar > > > > > > > > > > > > > > > > > > > From: > re-wrenches-boun...@lists.re-wrenches.org > [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Dana > > Sent: > Saturday, February 13, 2010 > 3:43 PM > > To: ' > RE-wrenches ' > > Subject: [ > RE-wrenches ] > Refractometer vs Hydrometer? > > > > > > We have retired > the Hydrometer and now use only > refractometer. We have used them for 4+ years > now. > > Our clients that > do their own battery maint. Are so > impressed that we have sold quite a few to that crowd > too. > > > > > They are safer > and less intrusive: you only use a drop of > electrolyte. > > Faster to use > than a Hydrometer. > > Appear to be a > more accurate reading VS. the Hyd…. > > Will check > propylene and eythethlene glycol > concentrations. > > Are 1/10 as > susceptible to getting broken in a work truck or > situation. > > 1/3 the size of > a hydrometer and live in a padded case. > > Calibrated to > distilled H2O and we have never had to > re-adjust the setting. > > And best of all > they are easy to keep clean and do not drip > battery acid for days even if the hydrometer is washed > out. > > > > > A hands down > winner in my book - $100-125 at your local > plumbing wholesale. You may want to get an extra plastic > flap lid, we have had > a couple come apart. > > > > > > > > > > > > > Dana > Orzel > > > > > Great > Solar Works, Inc > > www.solarwork.com > > > E > - d...@solarwork.com > > V > - 970.626.5253 > > F > - 970.626.4140 > > C > - 970.209.4076 > > > > > I > will be the shift in > how the world uses power! - Dana Orzel > > > > > > > > > > > > > -----Inline Attachment Follows----- > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
