2in1 USB 5V charge discharge board module DIY 18650 lithium battery Power Mobile Bank MP3 MP4 Input : 2.8~4.2V 3.7V 3.2V
USD 1.25
2in1 USB 5V charge discharge board module DIY 18650 lithium battery Power Mobile Bank MP3 MP4 Input : 2.8~4.2V 3.7V 3.2V