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Hi Tom,<br><br>
These are Trojan L-16E batteries, 370 AH. They have a 2 hour absorb
cycle at around 29.3 V. There is one series string of 4 batteries
in a small, off grid cabin that is used 3 or 4 days a week.
The system has 980 Watts of PV with an Outback FM 60 CC and an Outback
3524 VFX inverter.<br><br>
I was concerned to read that John and Bob have been seeing more problems
with the Trojan L-16s lately. They have been a standby for this type of
system. If they truly are not lasting as long as previously, what other
options do we have for a reasonably priced, decent quality battery in
that amp hour range? <br><br>
Thanks,<br><br>
Drake<br><br>
<br>
At 09:54 AM 7/16/2013, you wrote:<br>
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Hi Drake<br>
<br>
The first thing I would look at is how the batteries are being charged…
Can they even be charged by the present equipment? What is the
Bulk/Absorb voltage and time? Equally important is the design of the
bank… series or series/parallel and if parallel how many strings. Lastly
which Trojan L-16 are these? <br>
<br>
Tom Duffy<br>
Senior Solar Design Engineer<br>
<img src="cid:7.1.0.9.0.20130717165627.05a44358@redwoodalliance.org.1" width=244 height=101 alt="Real-logo-X-195">
<br>
Toll Free 888-895-8179<br>
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<br>
<b>From:</b> re-wrenches-bounces@lists.re-wrenches.org
[<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" eudora="autourl">
mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of
</b>Drake<br>
<b>Sent:</b> Monday, July 15, 2013 8:59 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> [RE-wrenches] Trojan L-16s<br>
<br>
Hello Wrenches,<br><br>
A 1 1/2 year old bank of Trojan L-16s had a battery with a dead cell. I
have heard that there have been some complaints about the L-16s
lately. Has anyone had experiences with Trojan L-16s (or the RE
series), good or bad? Are they still a good choice to use in off
grid systems?<br><br>
Thanks,<br><br>
Drake <br><br>
Drake Chamberlin<br>
<i>Athens Electric LLC<br>
OH License 44810<br>
CO License 3773<br>
NABCEP Certified Solar PV<br>
740-448-7328<br>
</i><a href="http://athens-electric.com/">http://athens-electric.com/<br>
<br>
</a><br><br>
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