FAQ

Q：What is the life expectancy of a Lithium battery?

A: The typical estimated life of the Lithium Iron Phosphate (LiFePO4) battery is 5-15 years, or 2000 to 8000 charge cycles.

One charge cycle is a period of use from fully charged, to fully discharged, and fully recharged again.

Q:Why hasn't my ups or Fedex transportation number been updated?

A: This is normal, because in countries with tariffs, our packages need to pass the customs of your country before they

can be delivered to the local UPS or FedEx. Once they pass the customs and update the transportation number,

you can usually receive the goods within 3-5 days.

★In addition, because the battery is prohibited product, many courier and logistics are unable to send, the arrival

will indeed be slower, so please wait patiently after place an order. Can Not give us bad feedback due to the courier

company or because of the courier service slow or other factors. open dispute will be unacceptable. Sorry for any

inconvenience.

These situations not provide return nor refund

1: after the assembly or assembly process happen any problem, such as the protection board connected to

the wrong wire burned lead to battery damage, charger failure, the assembly error or unbalanced assembly, etc.

2: For damage caused , such as battery bulge/ welded, battery pack without protection BMS caused by charging.

Tip: These products are batteries only, without protection board, you need to purchase a match one! You can

check our shop and search BMSBefore taking the order

Please read carefully all the description before taking orders, the battery is suitable for DIY lovers with experience,

people who are not familiar with electronic, please go to our shop to buy the finished product. Those buyers who

buy this battery, must agree that you are familiar with the safe use of lithium battery knowledge.

Professionals will detected voltage/resistance/appearance and other issues before every shipment, we can only

ensure that the single battery is good, when arrival you can test the cells within 2-3 days, after that means batteries

have no problem, does not provide return nor refund. If you found problems you can contact us for return or refund.

Battery can only be unused (the electrode intact, no welding, no wear, the appearance good) to provide return. Any

return behavior buyers need to be responsible for shipping free