Please let me know what you think in the comments! I'd love to hear some suggestions for improvements or how you have done it.
Affiliate links
Heating pads - [ Ссылка ] (10 inch by 20.75 inch )
Battery Terminals Studs - [ Ссылка ]
Here are the cells I use:
1. [ Ссылка ] (lishen)
2. [ Ссылка ] (lishen)
3. [ Ссылка ] (eve)
