[RE-wrenches] 24 vs. 48

[Kent Osterberg]

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


On 1/17/2012 8:56 AM, 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-bounces at lists.re-wrenches.org
> [mailto:re-wrenches-bounces at 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
>
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