atatistcheff
Solar Enthusiast
- Joined
- Sep 20, 2019
- Messages
- 176
I'm looking for some advice for building a 12V battery with 18650 cells. I see that batteryhookup has some crazy cheap LG modem cells. So far I've built a battery using Sinopoly prismatic cells and Headway cells. However, 18650s just seem to be so hard to find for a good price and decent quality that I've shied away from them. Still, I'd like to try building one.
So this post is to get some advice on how to go about that. I don't have a spot welder but I can solder although I don't know if that's really a good idea for these cells. One thing I'm wondering is how many cells should be in series for a typical 12V battery? I'm thinking of something around 60Ah so if we are using 3s it would mean a 3s24p pack with 2500mA cells. With LiFePO4 we do 4s batteries but apparently with the lithium 18650s we do 3s?
Any thoughts on methods to hook these together would be appreciated. If it helps, the modem batteries I'm looking at are here https://batteryhookup.com/collectio...-lgabb41865-cells-lithium-ion-modem-batteries.
The specs are here http://www.batteryspace.com/prod-specs/5457_B4.pdf
Thanks in advance!
So this post is to get some advice on how to go about that. I don't have a spot welder but I can solder although I don't know if that's really a good idea for these cells. One thing I'm wondering is how many cells should be in series for a typical 12V battery? I'm thinking of something around 60Ah so if we are using 3s it would mean a 3s24p pack with 2500mA cells. With LiFePO4 we do 4s batteries but apparently with the lithium 18650s we do 3s?
Any thoughts on methods to hook these together would be appreciated. If it helps, the modem batteries I'm looking at are here https://batteryhookup.com/collectio...-lgabb41865-cells-lithium-ion-modem-batteries.
The specs are here http://www.batteryspace.com/prod-specs/5457_B4.pdf
Thanks in advance!