[Finnster]

^^^ That's a sweet pic. Best lipo fire pic ever. Not so much magic smoke, but a ghost fog. I see faces too... ooohhh... scarry....


That joint is a bit ugly. BB16 right on the reflow. May want to clean the flux and dirt off 1st so you don't trap any crap in the solder.

I don't think it needs more solder, looks like plenty on there. May need just a bit on the iron to get the iron to heat the joint properly if you are having trouble. I low power crap iron is not going to do the job tho.

Always check at the cell tabs where possible to check the voltages, then work your way out to see where the break is. Then go with one probe on the pack, and the other on the balance taps going down the line to see where the break is. A paper clip or small pin inserted into the tap will help if you can't get the probe in.

Bit of a repeat of other advice, but all of it was good already