Guarantee:KingSener has its own factory,so we can strictly control the production.There are professional engineers to ensure the quality and safety of the batteries.All batteries are -certified and equipped with a variety of safety features,including short circuit,overheat and overload protection.High-quality built-in protection board guarantees long-lasting use,and good performance A++ cells ensure fast charging and low power consumption.
After-Sales Warranty:KingSener are committed to providing professional and friendly customer service!We are confident in the performance of the replacement battery,If there is any quality problem,replace the new battery for free.If you have any doubts,please contact us by email at any time,our professional technical team is always on standby to help you and provide you with considerate after-sales service.