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Comentado en los Estados Unidos el 16 de marzo de 2025
When I first received this, I kept getting a "short" message and it wouldn't weld. After spending some time researching online, I discovered that they have a new firmware that addresses this issue. The update was quite easy. Just use a USB cable and attach it to your pc. Download the firmware from their website, and follow the instructions. Only takes a few minutes, and has worked flawless since. Plenty of power for all you 18650 needs. Good heat transfer into the welds, but not into the battery, which is a good thing!
David J.
Comentado en los Estados Unidos el 11 de febrero de 2025
Used it once and worked fine. Second time it needed to be charged. During charge the screen went blank and died.Emailed manufacturer with no response. Would not recommend.
GaryMN
Comentado en los Estados Unidos el 23 de diciembre de 2024
I purchased 2 AWithZ spot welders. The first one was DOA, the second lasted about 3 months. This unit is more reliable and seems more solid. It also welds much better. I even made a type K thermocouple using this welder to weld together the 2 dissimilar wires (chromel and alumel). Happy!
Mark K
Comentado en los Estados Unidos el 3 de noviembre de 2024
I really like the FNIRSI line of products that I have bought so far. I bought this spot welder thinking I would repair some battery packs that have been sitting around for years that went out, I just did some practice with the settings and some of the nickel strip that comes with the welder and put it to use on an old alkaline AA battery and got it right to make them weld and hold. There was no problem with battery charging and recharging, worked great out of the box, very easy to use. I built a homemade spot welder from a microwave transformer 15 years or so ago but this welder is so convenient and portable and has plenty of power to get the job done, it's awesome.
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