Build Your Own Li-ion Battery Pack

I need a battery for my selfmade catamaran. It´s a smal boat (2x4m). For this a Li-ion battery with 700Wh is big enought.

I bought a batterybox from aliexpress. It´s for 60 pcs. 18650 cells.

Watch the Video. It Shows a cheap box for only 45$. You can use it also for an e-bike.

https://www.youtube.com/watch?v=nqxY-899Rb8

Buy good Li-ion cells. I chosse 60 pcs. Panasonic NCR18650B cells. 10 parallel an 6 in series.

The result: about 700Wh