How to make a soldering iron with solar energy | NenPower
When selecting a design, it''s important to consider factors such as location, available sunlight, and desired portability of the soldering iron. A flat-plate collector consists of
Whether you are building a battery pack with a soldering iron or using a spot welder, you are going to need a soldering iron. While we do cover how to build a battery pack from 18650 cells using spot welding vs soldering methods, we strongly recommend going the spot-welding route.
Try to use a thicker soldering iron tip as it transfer heat more effectively. Quickly tin both terminals (apply a small blob of solder to each battery terminal). The goal is to get in and out fast — ideally in under a couple of seconds. If the iron is in contact with the battery for too long, heat will build up and it becomes risky.
Soldering Li-ion batteries such as 18650 or 21700 cells can be risky. If overheated, these cells can catch fire, or even explode. That's why spot welding is always the preferred and safest method for making Li-ion packs. However, if you don't have access to a spot welder, soldering is still possible with care and the right tools.
Soldering Li-ion cells isn't the safest option, but with the right tools and careful technique, it can be done. The key is speed and preparation: roughen the terminals, pre-tin, and make your solder joints quickly with minimal heat exposure.
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