Weak link in side by side pack's?

[Sneeck]

I'm chargeing my small fleet of side by side pack's at the moment, and I just noticed that some silver bar's get warmer than the cell's itself. Now as an electrician I know resistance ~ heat, so is it possible the solder joint's on that bar are bad?

The pack's are Corally 3rd generation race spec matched gp3300's(whateverthehellthatmeans) charged on a millenium pro at 4 amp's. They got heatshrink around them.

[Dafni]

The bars on my batts don't heat up when I charge the packs. They only get warm from the batts, but they are never warmer than the cells.
Something must be wrong there. Did you check with a temp gauge? Is there solder visible, or is it some kind of spot welding?

[Sneeck]

I solderd the pack's myself. Here is a pic with the heatshrink removed;

Don't got a temp gun yet, but I can feel it's slightly warmer than the cell's next to it.

[Serum]

Perhaps there is too much tin between the bars and the pack.. The trick is to get as little tin as possible between the bar and the cell

[Sneeck]

No not much between the cell and bar's. The strange thing is that I just noticed this. Could be cause the pack's are sitting?(haven't used them since sept, keep charg/discharging them). Mayb a few time's cycling could fix it?

[nbcaznmaster]

as long as it isnt too hot, i wouldnt owrry about it.