BATTERIE RECHARGEABLES USB-C-PKCELL AA

These PKCELL USB-C Rechargeable AA batteries are actually a bit different from your standard rechargeable NiMH batteries (like Eneloops).
​Here is the breakdown of what you're looking at and why they are unique:
​How They Work
​Traditional rechargeable batteries run at 1.2V, which can sometimes make electronics (like a high-end camera or a digital lock) think the battery is low even when it's full.
​These PKCELLs are Lithium-ion batteries with a tiny internal circuit board. This circuit converts the native Lithium voltage down to a constant 1.5V, mimicking a brand-new alkaline battery until the moment it dies.
​Key Specifications
​Chemistry: Lithium Polymer/Ion.
​Voltage: Constant 1.5V output.
​Capacity: 3600mWh (Note: Since the voltage is constant, capacity is measured in Watt-hours rather than mAh to be more accurate).
​Charging: They charge via the USB-C port located directly on the side of the battery barrel