DIY How To Make a Powerful 12V 18200mAh 420A li-ion Battery Pack

18650 li-ion Battery pack
12.6V 18.200mAh
Current 280A
Pulse current 420A

Liitokala Max 40A Pulse 60A: https://www.aliexpress.com/ite....m/32822624368.html?s
Battery case: https://www.aliexpress.com/ite....m/4000430838449.html
Roll 10m 0.2x8x10 Nickel Strip: https://www.aliexpress.com/item/4000071250319.html?spm=a2g0o.productlist.0.0.691a5fa0BDv9Kh&s=p&ad_pvid=202004110353507157498472296840004404291_2&algo_pvid=aba229d4-0b7b-4657-a7f4-ad739c1aa87c&algo_expid=aba229d4-0b7b-4657-a7f4-ad739c1aa87c-1&btsid=0ab6fb8315866024304146239e4a2b&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_
Spot Welding Board 12v-16.8v: https://www.aliexpress.com/ite....m/4000498680528.html
Spot Welding Pen: https://www.aliexpress.com/ite....m/4000050070914.html
3.7-4.2V Spot Welder: https://www.aliexpress.com/ite....m/4000580011560.html