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This easy-to-use 18650 battery holder with a single slot offers a Micro-USB charging input, one 5V 2A USB-A output, three 5V 2A pad outputs and three 3.3V 1A output pads.
The board includes over-charge and over-discharge protections that greatly extend the lifespan of your 18650 batteries. there is also an onboard power ON/OFF switch. There is no reverse-polarity protection onboard - please ensure you fit your batteries the right way round with the + and - clearly marked on the board!
This battery holder can be used as a power source for microcontrollers, outdoor equipment and other low-power devices.
Note: The maximum current is 3A (however 3A should be considered a temporary peak current only), the output also depends on the quality of the 18650 battery.
We also stock 2-way and 4-way versions with slightly different features!
Batteries not included