Hi Ben, We've done a lot of this type of system using Surrette KS series batts. I haven't ever asked the question you did, but experience told me that differing battery lengths are more important than some give credit for. I actually use slightly longer (16" cables) and , in cases where we run two rows of twelve cells (typical) we can use a 16" cable to span the front row to back by using a right angle lug on either end of that cable. It works, as we have many (over 200) battery based systems out there, from Maine to Antigua), some for as many as 16 years, still operating well. Of course, this also depends on the customers ability to adequately equalize, water, keep terminals clean, etc. etc......just one mans experience.....
Daryl DeJoy NABCEP Certified PV installer Penobscot Solar Design > Since batteries seem to be a hot topic lately, I've got a question... > ...in a single 48V string, (24 x 2V) if each interconnect cable is > 14"-4/0awg and one cable in the middle of the string must be longer (btwn > 20"-24" total length)... > How detrimental will that be to the overall efficiency? > > Should it be OK or should the awg size for the longer cable be larger? > What other factors should I consider? > > Thanks, > benn > Sent from a 'smart' phone, with tiny keys. Please excuse shortcuts and > typos. > _______________________________________________ > 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
