Exquisite appearance, small size, it is easy to carry. It is a must-have for travel. DIY battery, suitable for rechargeable most models of lithium-ion batteries and Ni-MH batteries. With display, you can clearly see the power. Double slot design, it is easy to use.

Main Features:
●Double slot
Compatible with most rechargeable lithium-ion batteries and Ni-MH batteries.
●LCD screen displays battery power, charging status and charging current
●0V voltage activation function, over-discharged battery
● Optional 2A and 1A current
● Mobile power function, readable remaining power
● Overcharge / overcurrent / overvoltage protection

Note: 20700 / 21700 batteries with a protective plate that cannot be charged.