[RE-wrenches] Battery Experience

[Chris Schaefer]

Wes,

            Is there any reason why you are not considering Surrette? I see
on the list that wrenches are talking about AGM, but I can't imagine using
them when considering the size of your system. Their (Surrette) service has
been A++. I have several systems that are now over 10 years old and show
very little sign of aging. I love their dual containment system.

 

Good Luck,

Christopher Schaefer

 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Larry
Crutcher,Starlight Solar Power Systems
Sent: Thursday, February 09, 2012 11:05 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Battery Experience

 

Ken,

 

Interesting. Do you know if Deka has more than one manufacturing plant? 

 

My Deka representative did respond. Perhaps I could have expressed this
better: the response was "they are out of warranty". I knew that.  However,
due to the number of Deka battery failures we were experiencing, I would
have expected something more than "no warranty".  They did replace one 8D
that failed at 13 months. Thanks Deka.

 

During the last few years that we sold and installed the Deka AGM's, we also
sold Lifeline, Sun Xtender, Trojan, Optima and FullRiver. We sold 3 times as
many Lifeline as we did Deka. Zero failures form any other brand.

 

I have a customer coming in today that has 2 8D AGM's. I installed these 11
months ago. His complaint is that the voltage will drop to 11.5 within 5
hours of use. I'll let you know what I find.


Larry Crutcher

Starlight Solar Power Systems

 

 

 

On Feb 9, 2012, at 5:24 AM, Ken Schaal wrote:





We have used Deka wet and sealed, AGM and Gel, since 1999 and never had a
premature failure.

I have a set of 8D AGM's  in my own system.

The local factory warehouse is responsive to our needs.

 

Ken Schaal

CommonWealth Solar

----- Original Message -----

From: Larry <mailto:larry at starlightsolar.com>  Crutcher,Starlight Solar
Power Systems

To: wes kennedy <mailto:hathasolar at yahoo.com>  ; RE-wrenches
<mailto:re-wrenches at lists.re-wrenches.org> 

Sent: Wednesday, February 08, 2012 3:14 PM

Subject: Re: [RE-wrenches] Battery Experience

 

Wes,

 

While I don't have experience with the Deka Unigy AGM's,  I can tell you
that we are experiencing many failures of the 4D, 8D and other 6 and 12 volt
Deka AGM batteries. The company will not respond to the problems so we will
never sell another Deka or MK (made by Deka) AGM battery.




Larry Crutcher

Starlight Solar Power Systems

(928) 342-9103

 

 

On Feb 8, 2012, at 9:02 AM, wes kennedy wrote:

 

Howdy Gents,

 

I have a project (high altitude, off grid, 25 kw PV, 9 x SI5048's,
multicluster) where I am considering two similar batteries.

 

The Absolyte GP (GNB 100G17)  vs the Deka Unigy II (AVR95-19).  Both have
similar reported Lifecycle curves, 1200-1300 cycles at 80% DOD.

 

Any field experience to share? The Deka seems better on paper, larger AH
capacity per dollar quoted from my distributor.

 

 

Thanks!

 

-Wes Kennedy

Solar Geek since 1996
303-653-3073

 

 

 


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