The Keeppower AA USB 2500 mAh rechargeable battery (P1450TC) serves as a replacement for classic AA batteries. Inside it is a Li-ion cell that is equipped with regulating electronics, which maintains a constant 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 work for a short period of time. The capacity of the battery is 2500 mAh (3.75 Wh which corresponds to a capacity of 3000 mAh for NiMH batteries).
The battery can be charged only via the built-in USB-C connector, so it can be charged e.g. from a computer, with a mobile phone charger, from a powerbank 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. 2 A). The battery is therefore suitable for example for cameras, navigation, weather stations, laboratory instruments, photo traps and other devices. The battery is also compatible with all Fenix headlamps and flashlights on AA batteries. These include Fenix E12, Fenix E20, Fenix LD12R, Fenix LD22, Fenix HM23, Fenix HP16R.
When using this battery, it should be taken into account that you cannot reliably know the remaining capacity by the output voltage. During the first 90-95% of the capacity, the voltage is still constant at 1.5 V and only after that it gradually drops to about 1.0 V under load. When the battery is fully discharged, the voltage suddenly drops from 1.0 V to 0 V.
Specifications
- Nominal voltage: 1.5 V (the battery keeps it constant almost until discharge)
- Capacity: 2500 mAh / 3.75 Wh (min. 2300 mAh)
- Maximum current draw: 2 A (higher current will cause the short circuit protection to intervene)
- Charging via built-in USB-C input, 5V charging voltage. Charging current : 500 mA.
- Charging time for a fully discharged battery is 1.5-2 hours.
- Protective electronics built-in at the plus pole provide protection against overcharging, complete discharge and short circuit.
- Lifetime of more than 500 charging cycles
- Diameter: 14.4 mm (+/- 0.2 mm)
- Height: 50.2 mm (+/- 0.2 mm)
- Weight: 20 grams.
Charging via USB-C connector
Plug the USB cable (not included) into the side USB-C connector, the indicator light on the top of the battery will flash blue during charging. When full charge is reached, it lights up permanently in blue.
Warning
- Cannot be charged in conventional chargers
- Do not short-circuit the battery (do not connect the cell poles with a wire)
- Do not throw the battery into fire or water
- When using the battery, observe the safety guidelines
Warranty
Legal two-year warranty.
