[Aaron Christophel] has a battery spot welder that costs a not unreasonable 30 euros and can also be used as a novelty power bank. He subjects it to a test and teardown in the video below the break.

In somewhat of a departure from their normal fare of heavy metal mods, [Make It Extreme] is working on a battery pack for an e-bike ... Rather than spot weld the terminals, [Make It Extreme ...

Step-by-step instructions ensure a spot welder is built for efficient battery pack creation, making it easier to solder 18650 batteries with precision and effectiveness, resulting in a high ...