William You apparently misunderstood my poorly worded question I am sorry, I meant... "why can't they make a big 1110 AH 2 volt... like Surrette does".
I have seen very few truly "defective" cells in the 45 years I have been in the battery business. Its true cell "failure" is a common enough occurrence but this always stems from abuse. Battery manufacturers make good products, but people kill batteries by abuse. It is very rare (If ever) to have failure in a single series string bank, if proper charging and maintenance are followed. Also in a single series string the differences in internal resistance from new to old is cancelled out by the single "Path" of the series. If you add a new cell to a series string the worse thing that happens it the older cells will wear out before the young ones, but in the natural course of life, not from any abusive design And yes in parallel connections the difference in resistance from new to old is a disaster waiting (usually not too long) to happen. - Tom Duffy ----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of William Miller Sent: Monday, October 08, 2012 4:30 PM To: RE-wrenches Subject: Re: [RE-wrenches] Trojan 2 volt L-16s ~Ray: Yes, indeed. But--- would one defective cell bring about the early demise of the other two in the same case? If this occurs after one year of age, are we advised against changing out the one bad battery and required to replace all of them? More questions seem to occur the more we think about this idea. Wm At 02:12 PM 10/8/2012, you wrote: >At least the imbalance would only be one cell, not a whole string of cells. > >Ray _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] 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: [email protected] 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
