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The model SK4S100 is designed for most 4S lifepo4 battery pack,no matter the battery cell is 3.2v 20ah or 3.2v 1000ah,it works.
Designed Max charge current is 150A, Max discharge current is 150A,charge voltage is:14.6V~14.8V.
Different battery cells have different charge/discharge current.
For example,the 3.2v 20Ah,you should make sure the charge current not over 20A,and discharge current not over 20A.
Check the spec sheet of your battery cells,make sure charge/discharge current is correct.
Here are the steps to make a 12V 100ah Battery pack demo,if you want to build 12v 200Ah or 12v 400Ah,the same way.
Step 1:get the battery cells ready like the photos:
Use the cooper bus bar,connect the positive and negative, positive and negative, positive and negative.
Also,I marked the screws on the battery cells these need to connect with