✅21700 battery charger has 4 independent charging channels, automatically select the optimum charge current, supports 4-channel simultaneous independent charging without affecting.3.7v battery charger charge four lithium ion battery 3.7v 18650 at the same time.
✅4 sets of LED indicators show independently when charging, making the charging process visible status and stopping once completing charge intelligently
✅The smart battery charger features a low-voltage activation function, as well as functions for thermal and overcurrent protection, overvoltage protection, short-circuit protection, overcharge protection.
✅We strive to provide 100% satisfactory products and service to our customer. If there exists any questions about the battery charger, please feel free to contact us, we will respond in 24H.