BATTERIE RECHARGEABLES USB-C-PKCELL AAA

Ah, the PKCELL USB-C rechargeables! These are actually pretty clever. Unlike traditional rechargeable batteries (NiMH) that usually sit at 1.2V, these use a tiny internal circuit to output a constant 1.5V, making them perfect for devices that are picky about voltage.
​Based on the image, here is a breakdown of what you're looking at and how to get the most out of them:
​Technical Specifications
​Size: AAA (Standard)
​Voltage: Constant 1.5V output (excellent for high-drain or voltage-sensitive electronics).
​Energy Capacity: 900mWh (milliwatt-hours).
​Note: Lithium AAA batteries are measured in mWh rather than mAh (milliamp-hours) because the voltage is converted internally. To compare to a standard battery, this is roughly equivalent to 600mAh.
​Chemistry: Lithium-ion with an internal buck converter