<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:12pt"><div>I have two and have generally been pretty happy with them. Definitely get the USB interface, great for tracking and saving data. The one problem I've had so far is that I was charging a pack and the current starting dropping significantly before the voltage was at 42 volts. Then noticed the unit was much warmer than usual, too hot to hold onto, and the fan wasn't running so I shut it down. <br><br>I contacted FMA figuring I would send it back. But they told me about a problem these sometimes have. One of the wires to the front panel banana jacks can interfere with the fan and stop it from turning. They suggested I open the unit first to see if this could be the problem. It obviously was. I pushed the wire so it was well clear of the fan.
Charger works fine now. Note that this was not the first time using this charger. It had worked fine before. As built, the wire must have been really close and just moved enough for some reason to interfere with the fan.<br><br>Otherwise, they've worked as advertised.<br></div><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> Keith Hoard <khoard@gmail.com><br><b><span style="font-weight: bold;">To:</span></b> General pattern discussion <nsrca-discussion@lists.nsrca.org><br><b><span style="font-weight: bold;">Sent:</span></b> Saturday, February 7, 2009 8:19:47 AM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [NSRCA-discussion] Cell Pro chargers<br></font><br>
I have the 10S and love it. . . when its working. I just sent mine back in for the second time after getting some cryptic error message that wasn't in the book. So far, they have repaired it for no cost other than shipping. Make sure you have a power supply with some grunt, especially if you're going to charge a few A123's since it will draw 25Amps right at the start.<br>
<br>As for the interface, it is very cumbersome to program using the two buttons. You really need to get the two-way serial cable and access the innards thru your computers USB port. I take my laptop out to the garage every once in a while and plug it into the 10S. When I start up the 10S software, it automagically updates itself over my home's WiFi and then I can update the chargers firmware. The software is also the key to programming several presets to use for your different batteries.<br>
<br>As for the bad components, what can you say. They are mass produced in Asia just like every other electronic stuff we have. So far they have been great repairing and returning anything I've sent them.<br><br><div class="gmail_quote">
On Sat, Feb 7, 2009 at 8:09 AM, <span dir="ltr"><<a rel="nofollow" ymailto="mailto:AtwoodDon@aol.com" target="_blank" href="mailto:AtwoodDon@aol.com">AtwoodDon@aol.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div style="font-size: 10pt; color: rgb(0, 0, 0); font-family: Arial;"><font color="#000000" face="Arial" size="2">
<div>I have been using a 10S for several months now with only one negative
incident. I normally charge my 10S batteries as 2 5S packs, which I
consider my 'normal' condition. About 2 months ago, I plugged in my
batteries and 'poof', out came the magic smoke. Sent it in for repair and
they replaced the unit, no explanation of what the cause was. I like the
unit and other than that one incident I have had no other issues. I bought the
unit primarily to be able to determine and track internal resistance of the
cells. </div>
<div> </div>
<div>While the 10S works fine as a charger, I don't care for the user
interface. Basically, you have 2 buttons to control and program everything
with one of those buttons dedicated to start and stop. While it may reduce
manufacturing or programming costs, it makes the user interface cumbersome at
best. </div>
<div>Don</div>
<div> </div>
<div><div><div></div><div class="Wj3C7c">
<div>In a message dated 2/7/2009 5:31:18 A.M. Pacific Standard Time,
<a rel="nofollow" ymailto="mailto:jlkonn@hotmail.com" target="_blank" href="mailto:jlkonn@hotmail.com">jlkonn@hotmail.com</a> writes:</div>
</div></div><blockquote style="border-left: 2px solid blue; padding-left: 5px; margin-left: 5px;"><font style="background-color: transparent;" color="#000000" face="Verdana" size="2"><div><div></div><div class="Wj3C7c">I am
curious what folks have experinced with these.<br>I bought a 4s at Toledo last
year and it had a fatal (FMA's words) software failure<br>within a couple
months. The new one is very temperature sensitive. That is it
<br>will go in to "cold weather" charge even when in the 74F house. Now
that I'm going to go<br>electric I was looking at a 10s but I know someone
that has one that appears to be failing.<br>I know a couple incidents doesn't
indict the whole line but I don't know that many people that<br>have these for
good or bad. I'd like to hear what other folks have
seen.<br>Thanks!<br>JLK<br></div></div>=<br><br>_______________________________________________<br>NSRCA-discussion
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