The only advantages of 24 v are that you can create smaller KWH battery banks, and that Bergey's XL.1 was only available in 24 v. Anytime the design allows, I jump to 48 v.
R. Walters r...@solarray.com Solar Engineer On Jan 17, 2012, at 11:11 AM, Nathan Jones wrote: > > > Mark, > It would seem to be a wash. As the voltage is halved the amperage is doubled > in the battery bank. This would seem to require doubling the charging > amperage so nothing is gained. On a system of any size the 48 volt gets the > default nod here. Charge controllers handle twice the solar. Parallel battery > strings are eliminated, or at least held to two. Wire sizing might be reduced > on the low voltage side of things. And much easier future expansion > possibilities, too. > Cheers, > Nathan Jones > Power Source Solar Inc > > > ------------------------------ > On Tue, Jan 17, 2012 10:56 AM CST Mark Frye wrote: > >> Not really on topic to Jay's question, but... >> >> Is 48v always better than 24v? >> >> How important is bulk charging current to overall battery life? >> >> In some cases, isn't it better to use a 24v inverter/charger which can >> develop a higher charge current for a battery bank that has a higher AH >> rating? >> >> Mark Frye >> Berkeley Solar Electric Systems >> 303 Redbud Way >> Nevada City, CA 95959 >> (530) 401-8024 >> www.berkeleysolar.com >> >> -----Original Message----- >> From: re-wrenches-boun...@lists.re-wrenches.org >> [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of jay peltz >> Sent: Tuesday, January 17, 2012 8:43 AM >> To: RE-wrenches >> Subject: [RE-wrenches] battery buss bars >> >> Hi All, >> >> Where do I find buss bars for a battery parallel problem? >> >> I've got to fix a brand new ( not me) system, that has 4 sets of L-16's at >> 24v. >> Yea yea why didn't they go to 48? >> >> So I want to use buss bars to parallel them, and looking for premade ones. >> >> Thanks in advance, >> >> Jay >> >> Peltz power >> >> _______________________________________________ >> 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 > > _______________________________________________ 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
