Polymer batteries can be repaired. The method is as follows:

Remove the protective plate and measure. The output voltage of the connected battery has changed. Replaced it with a new battery, soldered it and stuck it together with tape. Use the power supply to apply a small current to start charging, slowly increase the voltage, and keep the current not exceeding 500Ma. Fully charge the battery. Finally, use the mobile phone to vibrate to discharge.

Polymer batteries are a type of lithium-ion battery, but compared with liquid lithium batteries (Li-ion), they have higher energy density, are smaller, ultra-thin, lightweight, and highly safe. It is a new type of battery with many obvious advantages. In terms of shape, lithium polymer batteries are ultra-thin and can be made into batteries of any shape and capacity to meet the needs of various products. The minimum thickness that this type of battery can achieve is up to 0.5mm. Its nominal voltage is the same as Li-ion's nominal voltage of 3.7V, and there is no memory effect.