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12% OFF 3Pcs Dual USB 5V 1A 2.1A Mobile Power Bank 18650 Battery Charger PCB Module Board US$13.19 US$14.99 View It

Overall:

elalexan 07/11/2020

Fast shipping and delivery at expected time. Although packaging was poor (no bubble plastic wrap) the products arrived OK. This is a very good dual USB mobile power bank board to create a DIY power bank to use with a set of 18650 Batteries or any old 3.7 Volts mobile battery. I created 2 DIY power banks using these different battery options (see photos). I made some measurements using a MADISTEK USB doctor module and results are excellent. At OUT mode the board can provide up to 2.0 Ams but also ... a great thing to point out is that it is also a fast charning module as when operates at IN mode it can also charge the battery pack with up 2 Amps current. A really great USB mobile power bank charging board and the 3 pcs pack is a great proce deal ! Really satisfied ! I will buy more !!!

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