Welding method for 18650 lithium battery.

Welding method for 18650 lithium battery.

Welding 18650 lithium batteries requires the use of a spot welding machine, but most electronics enthusiasts do not have this equipment. Below is an introduction to the method of soldering with a soldering iron:

1. First, prepare a damp cloth to protect the glasses for the eyes. The soldering iron should be at least 35W and the tip of the soldering iron should be well tinned.


2. First, use a small knife or file to polish the area to be welded, then wrap the battery with a damp cloth and apply a little soldering flux on the ground area. Here, rosin is used, and it can be welded as usual.


Attention: It is best to wear glasses before operation, just in case; Wet cloth should not be omitted. Without wet cloth, do not weld, as high temperature can cause the battery to be scrapped. When welding, strictly control the temperature. If the welding cannot be done immediately, wait for the temperature to drop before welding. If the wet cloth dries, replenish water in a timely manner to prevent the battery from overheating and prevent rosin from entering the small hole on the positive electrode of the battery.