Nice, cheap and good DC-DC converter for Li battery. 5V output to USB-connector. With undervoltage protection when battery voltage drops below 2.5V and overcurrent protection.

Nice, cheap and good DC-DC converter for Li battery. 5V output to USB-connector. With undervoltage protection when battery voltage drops below 2.5V and overcurrent protection.

Nice, cheap and good DC-DC converter for Li battery. 5V output to USB-connector. With undervoltage protection when battery voltage drops below 2.5V and overcurrent protection.

funziona bene

funziona bene

funziona bene

Good product as described

Good product as described

Good product as described

Hi, I have received it today 07/06/2018 Have a nice day Sincerly yours Bruno MIEZE

Hi, I have received it today 07/06/2018 Have a nice day Sincerly yours Bruno MIEZE

Hi, I have received it today 07/06/2018 Have a nice day Sincerly yours Bruno MIEZE

Great product!

Great product!

Great product!

perfect

perfect

perfect

It does what they claim it does.

It does what they claim it does.

It does what they claim it does.

Good quality pcb. Great for providing 5V to power USB devices from a 16850 li-ion battery.

Good quality pcb. Great for providing 5V to power USB devices from a 16850 li-ion battery.

Good quality pcb. Great for providing 5V to power USB devices from a 16850 li-ion battery.

Works well, no problems. Good unit for the price

Works well, no problems. Good unit for the price

Works well, no problems. Good unit for the price

these are very good. I solder a 12v dc barrel socket directly to the board end, and use them to power fones and pi from car battery and screen.

these are very good. I solder a 12v dc barrel socket directly to the board end, and use them to power fones and pi from car battery and screen.

these are very good. I solder a 12v dc barrel socket directly to the board end, and use them to power fones and pi from car battery and screen.