Can we connect LiFePO4 battery packs in parallel or series by ourselves?

Yes. Customers can connect the batteries in parallel or series.

But we need to pay attention to the following points:
--Before parallel connection, please ensure that the voltage of each battery is the same. If they are different, charge them to the same voltage.
--Do not connect a fully discharged battery in parallel with an undischarged one, as this may reduce the capacity of the entire battery pack.
-- If you wish to connect the battery packs in series, please inform us of the target capacity of the entire battery pack. We will select the appropriate BMS for each battery.
--If you are not a professional in parallel and series batteries, please do not handle batteries by yourself. This may cause danger and damage the battery's cycle life.