Returns accepted within 14 days. Return offered in the form of Product exchange. Buyer is the responsible for the shipping fees.
charging method,make the usb cable connect with power bank
then malke the usb connect with computr or standing charger
pleas keep the power bank in dry place
if you store the power bank for long time,charge it again fully
avoid crashing the products
when charging or discharging the products will be heating,its normal phenomenon