china manufacturer 12V rechargeable lithium polymer battery for solar inverter battery

Q1.Can I just try samples for the first order?
Trail order is acceptable. We can sell just few pcs for you the confirm the specifications of our products.

Q2.Can we put LiFePO4 battery pack in parallel or series by ourselves?
YES, but the batteries should be in same voltage and capacity, or it will influence the cycle life of the battery pack. Also you should tell us and we will match them before delivery. Before handling the battery, check the voltage of each battery is necessary.

Q3.Can we put different LiFePO4 battery pack in parallel or series by ourself?
Yes. The battery can be put in parallel or series by customers. But there are few tips we need to pay attention;
1>Make sure the voltage of each battery are same before put inparallel. If they are not same, charge them to the same rate.
2>Don't not put discharged battery and undischarged battery in parallel. This may reduce the capacity of the whole battery pack.
3>Advise us the target capacity of the whole pack if you would like to put them in series. We will choose the suitable BMS for each battery.

Q4.what is your warranty?
We offer 2 years warranty for all our battery pack.we ensure at least 2000 cycle life for the LiFePO4 battery pack,which means,after 2000@80% DOD,there will still around 60% capacityt left.You can use it for at least 5 years for normal 1 time charge and discharge everyday.

Q5.How does We ship the LiFePo4 battery packs?
The goods can be picked up by your own forwarder. If there is no forwarder. Then we can ship the battery packs.For sample order or small battery packs,we can ship by express through Fedex, UPS, TNT, DPD etc.If whole parcel over 100KG,can ship by air or by sea,sea shipping is more economical.
Customer can tell your nearest airport name and sea port name for Lithium Valley sales person to check the best option for you.

Q6. Does your battery pack include BMS? Can we use it for car?
R5: Yes, our battery pack include BMS, you can use it for low speed car only or aux. power for standard car. Do not use it for standard car directly, that will need more complex design BMS for the pack.