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In this video I will show from the beginning the detailed process of how I assemble my 7S lithium batteries, to use in the storage of my solar energy. I currently have 2 batteries of 100 amps each S has 48 lithium batteries above 2000mah, being a total of 336 18650 batteries. This battery that I am showing in the video, I am using 18650 batteries with capacities ranging from 1000 to 1999mah, to achieve the same 100 amps I needed a total of 504 batteries, being that each S has 72, being a total of 7 S in the pack. Here is a complementary video on how to make the connection: • Expensive Battery? Assemble yours yourself!