6 November 2012
How to Solder Sub C batteries and Tabs
Preparing the soldering iron:
•It’s very important to polish the battery surface (top and bottom) with a fine sand paper before soldering. Remove all grease and oxide. Then you apply some flux on the polished surface.
•Dampen the sponge in the stand. The best way to do this is to lift it out the stand and hold it under a cold tap for a moment, then squeeze to remove excess water. It should be damp, not dripping wet.
•Wipe the tip of the iron on the damp sponge. This will clean the tip.
•Melt a little solder on the tip of the iron.
This is called 'tinning' and it will help the heat to flow from the iron's tip to the joint.
•We highly recommend that you “tinning” all battery and strip surfaces before joining them together.
•Please note, NEVER block the little holes around the battery positive. They can release pressure when battery going hot.
You are now ready to start soldering:
•Touch the soldering iron onto the battery surface , when the solder start to melt, remove tip and put the tab onto the joint, then press tip onto metal tab and hold tip there for a few seconds.
•Feed a little solder onto the joint. Remove the solder, then the iron, while keeping the joint still. Allow the joint a few seconds to cool before you move the battery pack.
•Please note, control the heating time as short as you can, overheat will reduce the battery life.
•Inspect the joint closely.
It should be joined very firmly. If not, you will need to repeat the procedure.