Why does one of my XY-9801C battery packs show charging lights but fail to turn on or power the socks?
Based on the manual for the Dongguan XY-9801C Socks Smart Li-polymer Battery Pack, here are the steps to verify if the unit is functioning…
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Dongguan XY-9801C Socks Smart Li-polymer Battery Pack User Manual — questions & answers
Read product questions and troubleshooting answers linked to Dongguan XY-9801C Socks Smart Li-polymer Battery Pack User Manual.