[RE-wrenches] unique battery bank design question

[Jason Szumlanski]

I always thought that a very small 12V or 24V tap relative to the total capacity would be inconsequential. I was recently told otherwise by a battery mfr rep, but that is not surprising. I suppose the real question is what constitutes inconsequential. A 1A @ 12V fan on a 1000aH @48V battery bank can't make any real difference. Correct me if I am wrong! 

 

Jason Szumlanski

Fafco Solar 

 

 

From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of mac Lewis
Sent: Thursday, September 01, 2011 3:52 PM
To: RE-wrenches at lists.re-wrenches.org
Subject: [RE-wrenches] unique battery bank design question

 

Hello wrenches,

 

I have a battery bank questions.  I have an Oil & Gas client interested in setting up an off-grid control system that has a various DC loads at 12VDC, 24 VDC and 48 VDC.  My thought is to build a 48 V battery bank and tap off the bank at various points to create a 12V bus, 24V bus and 48V bus.  I am a bit concerned about unequal loading of the batteries.  Has anyone dealt with something like this that would like to share some insight?

 

Thanks


 

-- 

 

 

 

Mac Lewis

"Yo solo sé que no sé nada." -Sócrates

 

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