Getting the Batteries Ready. The Cold Heat Soldering Pen uses four replaceable AA alkaline batteries (not included). A battery polarity diagram (+/-) is located to the left of the battery compartment; please get it right, or else you will overheat the batteries and trouble will ensue.

This is important: use replaceable AA alkaline batteries. Rechargeable batteries will not work because their lower voltage messes with the circuit.

Here is how you should insert or change the batteries:

1. Loosen the two screws located on the battery compartment cover (the bottom grey section) of the Soldering Pen.
2. Remove the battery compartment cover by grasping it and gently moving it away from the rest of the unit.
3. Insert or replace the batteries according to the polarity diagram (+/-) on the Soldering Pen.
4. Put the battery compartment cover back on and tighten the screws prior to use.

These bits are also important:

1. Do not mix old and new batteries.
2. Remove batteries if not using the tool for an extended period of time.
3. Dispose of the batteries promptly and properly.
4. Did we mention? Use alkaline batteries only and preferably good ones, not the cheap stuff.

Getting the Ceramic Tip Ready. When you first open the Soldering Pen’s case, the Ceramic Tip lies in a separate compartment in the black foam base; remove it from there, gently. A translucent cap protects the front end of the tool; remove this protective cap, and insert the tip by pushing it into the tool. You’re set to go soldering now.