Lithium battery charging module micro USB 1A

Model: AA090.
Load module: linear load.
Current: 1 A adjustable.
Load accuracy: 1.5%.
Input voltage: 4.5V-5.5V.
Full charge voltage: 4.2V.

LED charging indicator.
Mini USB input interface.
Working temperature: -10 to +85 C.
Reversed polarity: no.