Cheap Xiaomi BN40 Li-ion Cell Phone battery, Brand New BN40 replacement battery for Xiaomi Redmi 4 Pro Prime
4000mAh/15.40WH 3.85V/4.40V Xiaomi BN40 Batteries for Xiaomi Redmi 4 Pro Prime, Xiaomi BN40 Cell Phone battery is a brand new,100% Compatible original and replacement Laptop battery,Purchase wholesale and retail BN40 with high quality and low price! BN40 Battery xiaomi Li-ion 3.85V/4.40V 4000mAh/15.40WH Specifications Brand: Xiaomi Capacity :4000mAh/15.40WH Voltage :3.85V/4.40V Type :Li-ion Battery Cell Quality: Grade A Descriptive: Replacement Battery - 1 Year Warranty Description: Brand New, 1 Year Warranty! 30-Days Money Back! Fast Shipping! How we test this Xiaomi BN40 Battery Li-ion 3.85V/4.40V 4000mAh/15.40WH Step 1: Make sure customer bought the correct battery. Step 2: Check battery's appearance and interface. Step 3: Test battery charger and recharger function. Step 4: Charger the battery to 100% and recharger to 0% to get real battery capacity Step 5: Use Ev2300 to check the voltage difference of each goroup cells. Step 6: Charger...