DIY battery pack must get the cells balanced (same voltage ) before assembly. Later if there happens don't know how to assembled or wrong assembly is not accepted refund. 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 15 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 fee.
1)If any miss or damaged for the shipping
Please contact us firstly, then send us the picture or video to check. In case of lossof cargo or the battery is damaged and can not be used or there is a greater risk of use, we will communicate with buyer if resend it or replace it or refund the product cost.If buyer send back the cells to seller,buyer should pay for the shipping cost.
2).Can you test each battery PRIOR to shipping?
Capacity Test:Less 2% Margin of Error, and Over the Nominal Capacity. Voltage:The deviation less than 0.01V
Resistance:Thedeviation less than 0.05mΩ
3).Are the batteries come with busbars+bolts?
The cells come with Bus bars and Bolts or stud for free each one battery will come with 1 piece busbsar and 2 pieces bolts or studs.If need more or special please contact us online.
4).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.
5).How can I place the order?
We accept alibaba trade assurance order online.For the RTS(ready for ship) product if there is clear shipping cost or free shipping to your country you can place order and pay directly before reading for all the details,or you can provide your shipping informtion to our sales they will creat online order for you.
Tips:
* These products are prototype batteries without protection board, you need to purchase a match one! Pls click here to
consult us.
* please consider before taking orders, place order means you have agreed. thank you for your cooperation!