SHENZHEN IMPROVE BATTERY Co.,Ctd polymer lithium batteries in zero voltage or low voltage is what led to the possible reasons are as follows:
1, lithium polymer battery external short circuit, such as a battery ground lug overlapping short circuit, battery positive and negative OTC ear clip on the same side.
2, polymer lithium battery internal short circuit or short circuit, such as: positive and negative pole burr penetrated diaphragm paper contact short circuit, diaphragm paper has not wrapped pole piece or just aligned with pole piece to cause short circuit.
3, the pole breaking of the polymer lithium battery
4, the polar ear glue does not reveal the packaging film, and the polar ear is short circuited by the aluminum foil in the middle layer of the package.
5, polymer lithium batteries are not converted into charging
The above five points are the possible reasons for the zero voltage or low voltage of the polymer lithium battery. When this happens, you can check it one by one to see what’s wrong.