Xiaomi Premium Quality Li-ion Polymer Battery Compatible with: Redmi Note 7, Note 7 Pro Original Equipment Manufacturer (OEM) BN4A 4,000mAh 3.85VH * Provides excellent continuous power to your device. * High energy density with extreme long charging circles. * High performance integrated microchip that features multiple protections for over voltage, over current, over discharge, over charge, over power, over temperature, short circuit and reverse input. * Batteries are TESTED individually before shipping. FREE Opening Tool Set With 14 days Replacement Warranty Chat us for warranty. Conditions: 1. Complete and intact packaging, good appearance. 2. Battery should be in good appearance, no sign of mishandling or misuse. 3. Bloated batteries will not be accepted. 4. Customer will shoulder the shipping cost.