FNIRSI SWM-10 Spot Welder Teardown Disassembly 4K

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This is a FNIRSI SWM-10 battery spot welder, used to spot weld nickel strips to lithium batteries i.e. 18650 and 21700 cells for repairing, rebuilding, or building battery packs.
I haven't seen a teardown of this device yet so I thought I'd make one. I have not had a chance to use the device in depth yet so this is not a review, it is just a teardown for you to see what is inside the device. Overall, my impressions of it are pretty good and I think it's a decent device.
Warning: The background music used in this video was generated using AI. The voice and video are human.
00:00 Introduction
02:13 UI and Settings Menu
07:05 Pass Through Charging
07:57 Teardown and Disassembly

Опубликовано:

30 июн 2024

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Комментарии : 14

@WaschyNumber1 15 дней назад

The delivery strips in the box are nickel plated steel and its 10mm width x 1.03mm thick.

@Ohm7111 Месяц назад

Thanks for this amazing teardown! There is some charging bug on my unit. If I discharge the battery and charge it, it will charge to 4.2V with regular CC/CV. But if reconnect charging cable or start charging from not empty, the battery is charged to 4.4V. Weird.

@liminalsunset Месяц назад

I've never discharged mine but it appears to charge to 4.4V. I assume the battery is a high voltage chemistry perhaps. It does seem to work better when charged to full.

@rudigunawans749 2 месяца назад

can weld 0.2mm - 0.25mm thickness nickel plate to battery. such as product description advertisements ?

@ariesleo7396 Месяц назад

If you play with settings the max is 0.2 pure nickel. Highest I recommend is 0.15 pure nickel.

@liminalsunset Месяц назад

It already struggles with welding 0.15mm nickel plated steel to 18650 batteries. In order to get a good weld you have to press lightly and not too hard, and keep the probes close to each other. This was the difference between it never working and working well enough.

@odin1420 16 часов назад

Why not show the removal of the side panels? To remove, start at the end with a thin blade, once you get the end to pop up insert a screwdriver under the panel lengthwise and twist it back and forth to pop the clips free.

@andresrosin1838 24 дня назад

You can update firmware through usb c, eliminates often problems with short circuit protection alert...

@liminalsunset 24 дня назад

Yes - Make sure to wait a long time, when the LED flashing color changes when doing this, as doing so before will lead to the device not booting. It is fully recoverable however it appears

@WaschyNumber1 15 дней назад

How does the firmware upgrade work 🤗 Does it work with android or PC and how, please? 🤔

@liminalsunset 15 дней назад

@@WaschyNumber1 I'm not sure about Android but I believe you have to hold down the power button for a few seconds while plugging the device into the computer, then it shows up as a USB drive that you copy the firmware into. You then have to wait a few minutes until the flashing light changes color before trying to turn it off/on again.

@WaschyNumber1 15 дней назад

@@liminalsunset thanks very much, wher do I get the firmware please and I hope its the official frome the manufacturer. 🤔

@liminalsunset 14 дней назад

@@WaschyNumber1 Yes you can go to their website and go to the Downloads section where it will be in the welding tools section.