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Old 02-16-2010, 11:40 PM
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Default RE: New Lipo battery problem

Well, let me start by making an apology for my stupid question. I thought I had supplied more info in another post.
Also, the issue is fixed, so if you want to move on, forget this.

The ESC is a XP-12A, motor is unknown make from Truerc.com, 100W and 1000 kV. Battery is Flightpower 350 mAh, 3S, 25C. The battery has been flown 10 times with only 2 min flight times from the start. Max current draw is 6A in the plane, with most flying at 4 A or less.
Using eFlite wattmeter, and test setup is set throttle to 3.0 amps and record.
The battery continues to only put out around 100 mAh after a full charge. I tried it on a Celectra Pro and a Hobbico Quick Field charger with inline balancer - same results.
Today I received two new batteries from HK in the mail, 350 mAh, 3S, 30C. Same test setup with the new battery, and I shutdown at 350 mAh with 10.7 V showing.

Obviously there is a dead cell in the Flitepower battery, and always has been. I got it from Tower, so back she goes. No swelling in the battery, although the middle seam looks a little wrinkled.

Sorry for the trouble, and thanks for the quick responses.

Regards to all.