Charge module:Linear charging.

Current:1A adjustable.

Charge precision:1.5%.

Input voltage:4.5V-5.5V.

Full charge voltage:4.2V ± 1%

Led indicator:red is charging； Green is full charged.

Input interface:micro USB/mini usb/type-c usb

Work temperature:-10° to 85°.

Inversed polarity: NO