How to Solder Sub C Batteries with Tabs?

Step 1: Preparation: Start by cleaning the battery terminal and the tab with a small amount of soldering flux. This step will ensure a clean, corrosion-free surface that will lead to a stronger bond.

Step 2: Pre-tinning: Pre-tinning is applying a thin layer of solder to the parts you intend to join before the actual soldering. This step helps in creating a reliable connection. Heat your soldering iron and touch the solder to the tip to melt it. Apply this melted solder to the battery terminal and the tab.

Step 3: Soldering: Once your parts are pre-tinned, it's time to solder them together. Position the tab onto the battery terminal. Then, press the heated soldering iron onto the joint. The heat will melt the pre-applied solder, creating a strong bond.

Step 4: Cooling and Inspection: After soldering, allow the joint to cool naturally. Once cooled, inspect the joint to ensure it is robust and well-formed. A good solder joint will be shiny and smooth.

[richardweth]

Honestly this should not be here. Its nice to show ho a factory with expensive dedicated equipment does this, but for the DIY people not so much. You should recaption this as how the factory joins subc batteries with tabs.