faulty battery

I've got a faulty Darfon E4C0C battery(Atleast it looks to be the problem), the battery shuts itself down after about 15s of being turned on. I'm able to charge and discharge the battery, but always for 15s before it shuts down. Checked all the cell groups for faulty cells, but they were all...

From Bike Europe, 11-19-15 HILVERSUM, the Netherlands – An earlier this week broadcasted Dutch TV program on consumer affairs presented the outcome of a survey under its test-panel of 20,000 electric bikers. The conclusion was that over 25% of all e-bike batteries are faulty. The TV program...