5Pcs Dual USB 5V 1A 2.1A Mobile Power Bank 18650 Battery Charger PCB Module Board
A part of the review has been auto-translated.
Easy to read display, intense brightness, faster load than the familiar ones, low consumption when on standby, led that helps a lot like flashlight, I made my DIY with 4, 8 and another with 12 18650 batteries and works very well. It does not heat when in charge or when in discharge, the exit of 2.1A is perfect and solves all the problems. I tested it with a soldering iron bought here at BangGood and it made me happy and happy. I highly recommend it
I ordered 5 sets of them and all working. The percentage meter is not so accurate. When I connect to fully charged 4.2V lithium ion battery, some show 94%-96%. The output voltage is about 5.2-5.3V. Good for DIY powerbank or boost up lithium ion battery to 5V application up to 2A, Value for money.
Teşekkür ederim kullanacağım - 謝謝你我會用 - Thank you I will use
output switches off after time. no charging and draining at the same time
Excellent product and handy to create your very own powerbanks
Polecam ten produkt.
haven't put it to the test but product look well done
Sr. de Banggood es normal que tenga un pedido ace dos meses y aun no lo reci y nadie te da esplicaciones y no ahy medios de ponerse en contacto con ellos es una berguenza. prosima compra para my sera en Amazon tienes mas garantias y super rapidos almenos conmigo.
super
funcionan bien, seria formidable que se nejore un poco mas la eficiencia