It only looks like a higher current, the actual power into the bank is the same. 100 amps @ 12 volt is the same as 50 amps @ 24 volts and 25 amps @ 48 volts.
Bob Ellison -----Original Message----- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Mark Frye Sent: Tuesday, January 17, 2012 12:20 PM To: 'RE-wrenches' Subject: Re: [RE-wrenches] 24 vs. 48 OK, But let's assume only one string, how important is it to develop a higher bulk charge current? 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 Kent Osterberg Sent: Tuesday, January 17, 2012 9:16 AM To: RE-wrenches Subject: Re: [RE-wrenches] 24 vs. 48 Mark, A 24-volt inverter may produce twice as much charging current as a 48-volt inverter with the same power rating, but if you are putting batteries in parallel, the individual batteries get the same charging current either way. In the case of four parallel strings of four L16 batteries, a 100-amp 24-volt charge puts about 25 amps (if you are careful with the wiring and the batteries aren't sulfated) into each string of batteries. A 50-amp 48-volt charger would accomplish the same thing. Kent Osterberg Blue Mountain Solar, Inc. www.bluemountainsolar.com t: 541-568-4882 _______________________________________________ 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
