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67% OFF 5V 2A Charge and Discharge Integrated Module Type-C Input Compatible with 4.2V/4.35V Lithium Battery US$1.99 US$5.99 View It

Overall:

BG165399216 14/05/2022

Does NOT WORK, DO NOT BUY! I hooked it up to 6 Lithium cells and tested it out. Discharging the cells was only possible at around 200-300mA. Swapping my phone out for another one, thinking it might be an issue with my phone, did not help either. Even hooking it up to an 1 Ohm Resistor and also with a 2.5 Ohm Resistor only resulted in 450mA current for a second, after which the BMS shut down and dropped to the current to 0mA. Charging on the other hand was possible, but only with a continuous current of around 500mA, despite having a reliable 2A charger. (Note that on the last image I was using the data hold function of my multimeter and the black probe is not touching the contact inside the usb cable when I was taking the picture. This is due to a lack of multiple hands, as taking the picture and measuring was not possible at the same time ;))

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