About this replacement
Designed for Xiaomi, Hongmi devices. Compatible models include Hongmi 4 Premium Edition, Hongmi 4X, Redmi 4X Premium Edition Dual SIM TD-LTE, Redmi 4x Standard Edition, Redmi 4x Standard Edition Dual SIM TD-LTE, 4 Premium Edition, 4X Premium Edition. Replacement part numbers include BN40. Key specifications: 3.85V, 4100mAh, Li-Polymer.