Thanks Dave, William, and Brent.
I ordered 12 of the Molicel 35A 2800mearMolicel 35A 2800mah cellsah cells. Shipping was fast. Got them in 3 days. I also got my spot welder. I bought it from Amazon. It is this model: Seesii Dual Farad Spot Welder, 25 Gears Adjustable 3000F Capacitor Battery Spot Welder with 1.8'' LCD Display, Portable Spot Welder for 0.1-0.3mm Nickel Strip Welding for Battery Pack Making. I paid 154.00. Now I looked and the price went up to 169.00 in 3 days. I also got some .02x10x35mm nickel tabs. The welder worked great. It welded the tabs very secure at a little less than ½ power. Setting was 11 gears out of 25. Some of the reviews said it wouldn’t do 0.3 so I didn’t order any. It looks to me that it would weld 0.3 with no problem. According to the chart I found 0.2 nickel is a little close to the max amp rating. I would prefer to use 0.3 nickel. For now, I can double the 0.2, but I’m not sure that’s necessary. Made up the first pack and it worked better than I expected. Very happy with this so far. The cells were on sale at $3.55 each. Went back for 12 more but they were sold out, I should have bought them up front.
Brent thanks for the link. I have some ribbon wire and crimps to make up the balance cables. I have a ton of it I got for upgrading my 3D printer. Those crimps are such a PITA. I think it’s about a 2 to1 failure rate at getting that tiny wire satisfactorily crimped and secured in the plug. At 2.50 each that is worth not having to make them up from scratch. If you are spot welding your packs, what size nickel strip do you use?
Thanks again. It was a lot easier to do than I expected. Your input has helped greatly.
Topic: what lithium ion battery areyou using to build your 6 cell packs? (Read 8465 times)