Portable USB Battery Charger.
* Compatible for 3.7V rechargeable Li-ion batteries.
* Available for low current charging below 2.9V.
* USB Input.
* Automatic adoption for the optimal charging modes between CC and CV.
* Automatic termination upon charging completion.
* Reverse polarity protection and anti-short circuit protection.
* Thermal protection during the charging process.
* Activates over-discharged batteries with protection circuits.
* Compatible with power banks, 5V solar panels, and USB adaptor.
* Made from durable and fire retardant PC materials.
* Optimal heat dissipation design.