[(Security)] : ALL of our battery is CE,FCC,RoHS Certified .And have passed a series tests of short circuit, overheating, and overload protection before shipments for safty.
[(AURUNHO After-sales)] We guarantee 30 days money-back and 12-month warranty; 24 x 7 email support. For any battery questions you fell free to contact us via "Your Orders" tab in your account, we will be glad to help you within 24 hours.