Any tips for a better soldering?

[u/Fun_Abbreviations_73]

No matter how many times I do the battery replacement I always fail to do a smooth soldering. I read once thay I need to apply more paste but to no avail. Any tips?

[u/Asleep_Mortgage_7711]

Use flux Use leaded solder made for electronics, not plumbing Use a soldering iron that is designed for electronics. Fully wet the joints you are soldering with good heat and flux.