It works perfectly with 1 amp mobile charger (5 volt). Red LED is the indicator of charging and when LI-ion 18650 battery charged up to 4.2 volt blue LED starts glowing which is the indicator of full charge battery. Discharging from battery through this module, it gives maximum of 2.5 Amp current.

It works perfectly with 1 amp mobile charger (5 volt). Red LED is the indicator of charging and when LI-ion 18650 battery charged up to 4.2 volt blue LED starts glowing which is the indicator of full charge battery. Discharging from battery through this module, it gives maximum of 2.5 Amp current.

It works perfectly with 1 amp mobile charger (5 volt). Red LED is the indicator of charging and when LI-ion 18650 battery charged up to 4.2 volt blue LED starts glowing which is the indicator of full charge battery. Discharging from battery through this module, it gives maximum of 2.5 Amp current.

The goods have been delivered to me. In 13 days in Slovakia. EU priority line. Matches description. I tested one piece. He works. I believe that the other pieces are also fine. If there was a better price I would order more pieces. Otherwise OK. I recommend.

The goods have been delivered to me. In 13 days in Slovakia. EU priority line. Matches description. I tested one piece. He works. I believe that the other pieces are also fine. If there was a better price I would order more pieces. Otherwise OK. I recommend.

The goods have been delivered to me. In 13 days in Slovakia. EU priority line. Matches description. I tested one piece. He works. I believe that the other pieces are also fine. If there was a better price I would order more pieces. Otherwise OK. I recommend.