Charging battery USB AA Fenix ARB-L14-2200U (Li-ion)

The Fenix ARB-L14-2200U rechargeable battery serves as a replacement for classic AA pencil batteries. Inside it is a Li-ion cell, which is equipped with regulating electronics that hold the output voltage of 1.5 V during discharge. The battery is therefore particularly suitable for devices that are sensitive to voltage levels and, for example, do not work properly with rechargeable NiMHs or only for a short period of time. The capacity of the battery is 2200 mAh (3.3 Wh which corresponds to a capacity of 3000 mAh for NiMH).
The battery is only charged via the built-in USB-C connector, so it can be charged for example from a computer, with a mobile phone charger, from a power bank or other USB source. It cannot be charged in a conventional charger!
The battery also has built-in protection against complete discharge and short circuit (maximum continuous discharge current is approx. 1.6 A). The battery is therefore suitable for cameras, navigation systems, laboratory equipment and other devices. The battery is also compatible with Fenix HL23, HL50, E12, E20, LD12, LD22 headlamps and flashlights. It is not compatible with Fenix HM23, LD41 and LD42 (too high current draw in highest mode).
Battery parameters

Nominal voltage: 1.5 V (the battery keeps it constant until discharged)
Capacity : 2200 mAh (3.3 Wh)
Maximum current draw : 1.6 A (at higher current, the short circuit protection will intervene)
Charging via built-in USB-C input. Charging current : 300 mA.
Charging time for a fully discharged battery is approx. 2.5 hours.
Protection electronics built-in at the plus pole provide protection against overcharging, complete discharge and short circuit.
Lifetime of more than 300 charging cycles
Diameter: 14.5mm ( plus /- 0.2mm)
Height: 50mm ( plus /- 0.2mm)
Weight: 19 grams.

Charging via USB-C connector
Plug the USB cable into the side USB-C connector, the indicator light on the top of the battery glows red during charging. When the battery reaches full charge, it glows blue.
Notice

Cannot be charged in conv..