[RE-wrenches] Five L16s in a 24V string?

[Dan Fink]

I think I would go with Lithium technology for a bi-polar battery or
installer disorder, ask your doctor or psychiatric health provider ;-)

I am chalking this up to old-time off-grid lore I've never heard of before.
and I'm an old-timer at off-grid too. The way to protect those string end
batteries from problems is the same as every other battery in the
series/parallel bank -- regular maintenance to maintain clean
low-resistance connections, but especially on the main corner DC
connections to the inverter / power panel etc.

Perhaps a case of "it ain't broke, don't fix it, been workin' fine all
these years?"

.




Dan Fink
Adjunct Professor, Ecotech Institute
IREC Certified Instructor™ for:
~ PV Installation Professional
~ Small Wind Installer
Executive Director, Buckville Energy
NABCEP / IREC / ISPQ Accredited Continuing Education Providers™
970.672.4342



On Thu, Oct 1, 2015 at 4:58 PM, Brian Teitelbaum <bteitelbaum at aeesolar.com>
wrote:

> But boB…
>
>
>
> Wouldn’t you end up with a bi-polar battery bank?
>
>
>
> Or just a bi-polar installer?
>
>
>
> Seriously though, I have never seen such a thing either in my 30+ years of
> working with battery systems. It’s kind of like using an L16 as the last
> battery on a string of golf-cart batteries. Yes, it would go through
> less-deep discharges than the smaller batteries, but would it last longer?
> These folks seem to think so. Interesting idea, but not sure that they
> really gain anything for the extra cost.
>
>
>
> Brian
>
> AEE Solar
>
>
>
> *From:* RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] *On
> Behalf Of *boB at midnitesolar.com
> *Sent:* Thursday, October 01, 2015 2:23 PM
> *To:* RE-wrenches
> *Subject:* Re: [RE-wrenches] Five L16s in a 24V string?
>
>
>
>
> I would think that doing this would be asking for un-balanced batteries in
> the string (un-equal battery voltage)
>
> But I guess I can't argue with success ?
>
> Put the positive battery in the middle then so it won't be on the end ?
> :)    :-)
>
> boB
>
>
>
> On 10/1/2015 2:07 PM, Starlight Solar Power Systems wrote:
>
> Took about a minute to draw with Pages on a Mac.
>
> On Oct 1, 2015, at 1:22 PM, Allan Sindelar <allan at sindelarsolar.com>
> wrote:
>
>
>
> ….Larry, nice drawing below. What did you use, as I need to learn it too?
>
>
> Allan
>
> *Allan Sindelar*
> *allan at sindelarsolar.com* <allan at sindelarsolar.com>
> NABCEP Certified PV Installation Professional
> NABCEP Certified Technical Sales Professional
> New Mexico EE98J Journeyman Electrician
> Founder (Retired), Positive Energy, Inc.
> *505 780-2738 <505%20780-2738> cell*
>
>
>
>
>
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