Can't balance Nano-tech 45C/90C lipos with BC6 charger - RC Groups
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Apr 02, 2011, 12:43 AM
Registered User

Can't balance Nano-tech 45C/90C lipos with BC6 charger

Hey guys,

I have two 2200 mAh three cell Nano-techs rated at 45C/90C.

I can't get my Bantam BC6 charger to do a proper balance charge on either battery.

At time of writing the charger has been trying to balance one of the batteries for 4 hours now. For the last couple of cycles I've just given up and manual terminated the charge. The charger usually shows each cell voltage something like: 4.17; 4.21; 4.19

I'm fairly sure it's not a problem with the charger as the charger will balance an old 20C Rhino lipo perfectly.

So what's the deal?
Are the cells just ridiculously mismatched?
Is the low internal resistance of these higher C-rated cells confusing the charger?

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Apr 02, 2011, 05:33 AM
Registered User
lipoflyer's Avatar
I take it that you dont balance charge regularly? You could try and draw down the offending cell?
Apr 02, 2011, 07:49 AM
Registered User
On the contrary, every charge has been set as a balance charge (attempted at least).

Apr 02, 2011, 08:26 AM
Southern Pride
everydayflyer's Avatar
I showed with graph and pointed out with text that my 45C Nano did not have highly matched cells in it and as usual many here once again just accused me of running down HK LiPolys as I am such a Thumder Power supporter. Look in the battery graph vault. I test ,many LiPolys and post the results obtained.

Wayne Giles also recently tested some Nanos , search for his results.

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