[NSRCA-discussion] Battery going bad?

[Mark Atwood]

I'd suggest you look at the connectors.  I had that same experience with a bad solder joint on a pack.  The battery is fine, but under the right conditions the connector has too high of an impedance and the controller shuts down.


Mark Atwood
Paragon Consulting, Inc.  |  President
5885 Landerbrook Drive Suite 130, Cleveland Ohio, 44124 
Phone: 440.684.3101 x102  |  Fax: 440.684.3102
mark.atwood at paragon-inc.com  |  www.paragon-inc.com



On Sep 17, 2012, at 4:32 PM, Bob Kane wrote:

I had something happen Saturday that is new for me . . . .   I was going to put up a flight with my 62" Osiris for a club airshow, I advanced the throttle to take off, the plane accelerated, then the motor quit.  The Castle Controller was emitting two beeps, indicating a low voltage error.  One of the club members had a meter that measures individual cell voltages and everything looked OK.  I used another pack to put up a flight with no issues.

When I got home I discharged the suspect pack and recharged it.  I flew it yesterday and it seemed to work OK.  I was practicing(!) some maneuvers repeatedly and the pack quit unexpectedly again, but it may have been my fault for not paying attention to the flight time.

Is this a sign of pending failure?  The pack has maybe 30 cycles on it.  I have had other packs get puffy and weak but this pack is rock solid.   The pack is a Rhino 5S 5000mAH 25C pack.
 
Bob Kane
getterflash at yahoo.com
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