4000mAh BN40 for Xiaomi Redmi 4 Prime Li-Polymer Battery

1. Brand new and high quality Li-Polymer battery for Xiaomi Redmi 4 Prime 2. Best replacement for the original battery with comparable standby and talk time 3. The Li-Polymer battery provides excellent continuous power sources to your device 4. Use the authorized charger only 5. If you don't use the battery for a long time, please put it in a dry and cool place and make it full charged once every three months 6. Compared with Nickel-Cadmium battery, the Li-polymer battery has no memory effect