The Controller Battery 1000mAh Li-ion 3.7V Sony Dualshock 4 PS4 (Bulk OEM) is a rechargeable battery for the DualShock 4 controller of the PlayStation 4 console. With a capacity of 1000mAh and voltage of 3.7V, it provides the necessary power to extend the controller's operating time during your games. This OEM (Original Equipment Manufacturer) battery is a bulk version, meaning it is supplied without retail packaging but offers the same reliable performance and quality as the original batteries. Ideal for replacing or upgrading your controller's existing battery.