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Hi Jarmo,<br>
<br>
One of the reasons I chose to sell and install GBS batteries is the
chemistry is safer, they have vent caps (like AGM) and they offer an
integrated solution where the battery, EMS/BMS and CPU are all
designed specifically for each other instead of adding various parts
from different manufacturers. The chemistry is LFMP (lithium iron
manganese) not LFP. There are seven monitored fault events,
including temperature, current and voltage, that will disconnect the
battery from any load or any charge source. <br>
<br>
Since we are installing in RV's, there are multiple charge sources
and all must be controlled. The systems I design do this very well.
Also, our charge and discharge rates are far lower than the industry
normally expects; rarely reaching .5C. <br>
<br>
I have seen private videos of destructive testing of GBS cells.
Steel rods fired through entire packs; slow crush tests from top and
sides, impact tests, even cells blown away on a gun range (that was
more for fun I think as not too likely you will experience that). No
fire, no thermal events. Bottom line for me is these are likely the
safest Lithium battery I can offer. Many customers have already had
shut down events because they were not being responsible. A simple
reset and they're back in business. <br>
<br>
What was the lithium chemistry that you had trouble with?<br>
<br>
<pre class="moz-signature" cols="72">Thank you,
Larry Crutcher
</pre>
<div class="moz-cite-prefix">On 3/17/15 12:49 PM,
<a class="moz-txt-link-abbreviated" href="mailto:Jarmo.Venalainen@schneider-electric.com">Jarmo.Venalainen@schneider-electric.com</a> wrote:<br>
</div>
<blockquote
cite="mid:OF7C4C9C06.13CB0C43-ON88257E0B.006BA2B0-88257E0B.006CEB15@US.Schneider-Electric.com"
type="cite"><font face="sans-serif" size="2">Hi:</font>
<br>
<br>
<font face="sans-serif" size="2">Please be careful when working
with
solar system size Lithium packs on the cell level.</font>
<br>
<br>
<font face="sans-serif" size="2">We have been doing on-going
testing
with Lion battery packs from various suppliers and even with
their built
in temp sensors and other BMS circuits, have already had two
"thermal
events".</font>
<br>
<br>
<font face="sans-serif" size="2">Lion is very unforgiving with
regards
low state of charge, high state of charge, temperature (110F is
the max
temp at which they should be charged and 140F is the max they
can handle).</font>
<br>
<br>
<font face="sans-serif" size="2">Given the low thermal mass of
Lion cells,
a high rate of discharge or charge quickly gets the cell
temperature into
the 110F+ range.</font>
<br>
<br>
<font face="sans-serif" size="2">As soon as you cross the line
things
start happening and if the BMS doesn't put a stop to it by
turning the
battery pack off, it's a very quick slide down the hill from
there.</font>
<br>
<br>
<font face="sans-serif" size="2">JARMO<br>
</font><font color="#008000" size="3">_____________________________________________________________________________________</font><font
size="3">
<br>
</font><font face="Arial" size="1"><b><br>
Jarmo Venalainen</b> | </font><font color="#008000"
face="Arial" size="1"><b>
Schneider Electric </b></font><font face="Arial" size="1"><b>
| Xantrex
Brand</b> | <b>CANADA</b> | <b>Sales Application
Engineer</b> <b><br>
Phone:</b> +604-422-2528 | <b>Tech Support:</b>
800-670-0707
| <b>Mobile:</b> +604-505-0291 <b><br>
Email:</b> </font><a moz-do-not-send="true"
href="mailto:jarmo.venalainen@schneider-electric.com"><font
color="blue" face="Arial" size="1"><u>jarmo.venalainen@schneider-electric.com</u></font></a><font
face="Arial" size="1">
| <b>Site:</b></font><a moz-do-not-send="true"
href="http://www.xantrex.com/" target="_blank"><font
color="blue" face="Arial" size="1"><u>
www.Xantrex.com</u></font></a><font face="Arial" size="1">
|
<b>Address:</b> 3700 Gilmore Way, Burnaby, BC V5G4M1 <br>
</font>
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*** Please consider the environment before printing this e-mail</font><font
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<br>
<br>
<br>
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<tr valign="top">
<td><font color="#5f5f5f" face="sans-serif" size="1">From:</font>
</td>
<td><font face="sans-serif" size="1">Larry
<a class="moz-txt-link-rfc2396E" href="mailto:larry@starlightsolar.com"><larry@starlightsolar.com></a></font>
</td>
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<td><font color="#5f5f5f" face="sans-serif" size="1">To:</font>
</td>
<td><font face="sans-serif" size="1">RE-wrenches
<a class="moz-txt-link-rfc2396E" href="mailto:re-wrenches@lists.re-wrenches.org"><re-wrenches@lists.re-wrenches.org></a>,
</font>
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<tr valign="top">
<td><font color="#5f5f5f" face="sans-serif" size="1">Date:</font>
</td>
<td><font face="sans-serif" size="1">03/17/2015 11:41 AM</font>
</td>
</tr>
<tr valign="top">
<td><font color="#5f5f5f" face="sans-serif" size="1">Subject:</font>
</td>
<td><font face="sans-serif" size="1">[RE-wrenches] Load
testing Lithium battery
bank</font>
</td>
</tr>
<tr valign="top">
<td><font color="#5f5f5f" face="sans-serif" size="1">Sent
by:</font>
</td>
<td><font face="sans-serif" size="1">"RE-wrenches"
<a class="moz-txt-link-rfc2396E" href="mailto:re-wrenches-bounces@lists.re-wrenches.org"><re-wrenches-bounces@lists.re-wrenches.org></a></font></td>
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