Microsoft Lumia 435 Replacement Battery BV-5J 3.7V 1300mAh Warranty:Warranty 2 Year Bench tested on actual hardware:

Bench tested on actual hardware: We ran this cell through a full charge cycle on a Legrand-compatible charge controller

If the battery's BMS has a conservative over-current threshold — common in aged or deeply cycled packs — that spike trips the protection circuit and cuts power instantly

Fit the correct cell when the original no longer holds a charge or fails to power the device through a normal day

and also useful for emergency backup systems

Microsoft Lumia 435 Replacement Battery BV-5J 3.7V 1300mAh Warranty:Warranty 2 Year Bench tested on actual hardware:Microsoft Lumia 435 532 3. 7V Li ion Replacement Battery (BV 5J) This is a 3. 7V, 1300mAh Li ion cell built to the BV 5J specification. It fits the Microsoft Lumia 435, Lumia 532, and RM 1070 variants. Capacity is 4. 81Wh identical to the original cell these phones shipped with. Lumia 435, 532, and RM 1070 fitment: All three models use the same battery bay dimensions, contact pin layout, and BV 5J BMS handshake. The fuel gauge IC on each device reads