Hi Ron, The recommended maximum number of strings in parallel in a lead acid battery bank is 4. Each string consist of the number of units required to meet the battery bank voltage (12V, 24V or 48V). Higher than 4 strings in parallel is not recommended as the risk of unbalanced charge between the strings will possibly increase over time and endanger the life of the units. Fewer strings in parallel is often preferred for price $ per Ah, fewer interconnects, sometimes optimum foot print, with the exception of unit weight challenges in few cases. Various lifting tools exists or created by Wrenches fellows for proper positing heavy units John
From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Ron Young Sent: Thursday, September 15, 2011 8:11 PM To: RE-wrenches Subject: Re: [RE-wrenches] battery cycle life, US Battery Hi Larry, Client has asked me to compare the cycle life because he is upgrading a large battery bank and has been convinced by a Xantrex "scientist" that golf cart batteries are superior to L-16's even though it involves twice as many batteries, connections, cells, footprint etc. So to convince his purchasing committee he wants to know the difference in cycle life between a U.S.B 208 and a Surrette S-460. Ron On 2011-09-15, at 4:52 PM, Larry Crutcher, Starlight Solar Power Systems wrote: Ron, For many years we have sold the US2200's and the Interstate version, the U2200 and I'd say they are nearly as good as the Trojan T-105. (buyer beware: Interstate switched to Johnson Control junk batteries and no longer sells the American made US Battery. http://starlightsolar.com/interstate.htm) I consider Rolls a superior long life battery compared to any other L16's. Curious here: why are you comparing an L-16 to a GC2? US Battery also makes a floor scrubber version, model US16HC XC. Larry Crutcher Starlight Solar Power Systems On Sep 15, 2011, at 4:23 PM, RM You wrote: Hi Wrenches, trying to compare battery cycle life on L-16 Surrette/Rolls vs. U.S. Battery golf cart. Can't seem to find any clear info on the U.S. Battery 208 a/h golf cart. The chart that U.S. battery shows on their website only gives one cycle life graph for all of their batteries whereas Surrette/Rolls differentiates between the series 4000 and series 5000. Comments? Best Regards, Ron Young earthRight Products - Solareagle.com<http://Solareagle.com/> Alternative Energy Solutions ~ Renewable Energy Products _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org<mailto: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<http://www.re-wrenches.org/etiquette.htm> Check out participant bios: www.members.re-wrenches.org<http://www.members.re-wrenches.org> This e-mail message and any attachments that accompany it may contain information that is confidential, privileged, or protected from disclosure. It is intended solely for the use of the individual(s) to whom it was intended to be addressed. If you have received this e-mail by mistake, or you are not the intended recipient, any reading, disclosure, copying or other use of this communication is strictly prohibited. If you have received this communication in error, please immediately advise the sender at their phone number listed above, or by electronic mail, and also permanently delete the original and all copies of this e-mail and any attachments from all locations. Thank you.
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