K6-PCBA 5V 2.1A 1A 듀얼 USB 3V ~ 5V 부스트 모듈 보드, 전원 뱅크 용 18650 배터리, LED 스크린 디스플레이

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• 타고 DiegoTodesco 26/02/2019 ottimo
• 타고 VideoLiam 29/10/2017 I purchased these as an alternative to:- https://www.banggood.com/Dual-USB-5V-1A-2_1A-Mobile-Power-Bank-18650-Battery-Charger-PCB-Module-Board-p-1031593.html These are a bit more expensive but have some advantages. I intended to use these to power aurduino/photon projects and thus attached them to two ICR18650 cell wire in parallel. I get about 10hour +, Depending on current draw, and cell condition Charging:- I measured a draw of about 850mA at 5V, so a good quality phone charger over 1A should