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Old Jan 31, 2004, 11:17 PM
AussieParkflyer is offline
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Port Stephens NSW Australia
Joined Dec 2001
249 Posts
Lipo fire........cell imbalance?

Hi all,
Well I could show you pictures of the carnage but it's too upsetting :-(
I destroyed my new A-10 this morning in front of a dozen club members.

Jet was flying beautifully till about 5 minutes into the flight the motors stopped dead and with no control at all it nosed in at high speed.
Then we noticed the fire.

My A-10 has the EDF55 300H motors and was running with 3S2P 1200 etecs.
The Etec packs are actually two 3S1P packs that I had parralleled with a "Y" adaptor lead I made myself from deans ultra connectors.

Only one pack was destroyed. It was burnt to a cinder.
The other 3S1P pack wasn't even warm to the touch and is ok as far as I can tell.

Now I didn't worry much about cell balancing (well not at all) except for making sure that both packs were fresh off the charger before parralleling them together.

Is cell or pack imbalance the likely cause of my pack failure?
Because only one pack was destroyed I don't think I could have been overstressing the packs current wise?

Any suggestions appreciated as I would love to build another A-10 as it was flying like a jet should! With authority, but I hate not knowing what caused this failure in the first place.

Thanks for reading
any comments appreciated

Aussieparkflyer
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