daromer said:
Spotwelding you need to have it a bit cleaner otherwise you might get issues getting proper contact.
Hey gang.
On the same lines, what about damage to the cells when removing the tin/nickel strip with force?
I'm fairly careful (using small nips) to curl off the metal strip from the batteries, but in a lot of cases, they just get "ripped off", leaving some spot weld pieces. I nip them and make as smooth as possible, but.... I've seen that some people "press" the remains back down with pliers, wooden mallets, and even tap them with hammers on the workbench to make smooth and flat.
Sure, A good reason for as smooth and flat as possible is to ensure a good connection to the chargers/dischargers, etc.
Thinking about it, as for re-soldering, and keeping things flat, why not just leave the tin/nickel piece on the anode and cathode and carefully snip them with sharp cutters.
This way, we don't rip the spot welds or the metal strip off the battery, potentially bending the ends and leaving spot weld pieces.
Question to the group - is it "easier" to solder onto the tin/nickle strip? I have found no difference. However, by leaving the metal piece and the spot weld there, does it cause any residual heat inside the battery when soldering to the remaining metal strip, as compared to soldering directly to the bare battery ends?
What about the holes left when pulling the spot-welded strip off the batteries? What about the CID's? Do they get damaged when we "tap" on them, or pull the metal from them?
I'm just looking for some safety rules of thumb and other's experiences.
Thanks