Re: [EVDL] Soldering vs. spot welding

https://youtu.be/JZfhCbUUflo this is a short video of my battery pairs. I think I might be able to solder on the large mass between pairs. At least for the BMS.  Lawrence Rhodes -- next part -- An HTML attachment was scrubbed... URL:

Re: [EVDL] Soldering vs. spot welding

I am reusing the buddy pairs. Separating them from a 48v pack 96 cells.40 amps max between pairs. About a 3/4" patch of metal between buddy pairs. 10 gauge wire needed. Was thinking of drilling and using small buss bars as an alternative. Not sure I can get a spot welder in  Lawrence Rhodes:  Me

Re: [EVDL] Soldering vs. spot welding

The cell won't last if you solder them. You can' help overheating the terminals. This ruins the separators. They are designed to be spot welded. You really need to use an inverter welder instead of a capacitance welder. Should be 4000 amps peak (at least 3000 amps). Bill D. On 8/10/2020 6:29

[EVDL] Soldering vs. spot welding

Connecting the A123 cells I am dividing into buddy pairs seems tenuous. I am thinking soldering may damage the batteries and maybe getting a spot welder might be smart. I want to use the original case. Gives good separation and stability. For a 40 amp 60v pack I need 10 gauge wire. Not sure I wa