Originally Posted by
whitrzac
It broke off too close to the cell to repair.
There needs to be a little bit of the tab left in order to solder to it. Even then you need Zinc based solder(extremely toxic/nasty) to solder to the aluminum tabs.
If there is a little bit of tab left with solder on it, you can fix it.
You are correct about the zinc solder (and flux) needed since most if not all Lipo cells have aluminum tabs. Trying to solder aluminum with conventional 60/40 is likw trying to use a noodle to tighten screws.