In this video, we're taking a look at some quality Chinese manufacturing and awesome quality battery welding technology. LOL just kidding it's a piece of crap that was dead on arrival.
man is totally normal, you need the breaker to be 50A at least; it written even in the description of the machine not for home use...i had the same problem; replaced the braker and used to electric oven connection - thicker wiring and works perfectly.
The circuit braker does NOT trip if you switch it on while the sine wave is at a cross point NULL (0). I have the same problem. Only at the switch startup it will trip. There is a design fault at the startup. If you have luck then it works at 16 amp circuit braker and all works normal and great!! Best regards, Albert (Netherlands)
During testing at the 12 minute mark I notice a couple problems with your use of the welder. 1) You have the charger and the welder turned on at the same time. 2) With the pedal plugged in, you lift the batteries up and say nothing (no weld). Proper operation with foot pedal is to lift the batteries up raising the welder probes up to insure proper pressure, then press the foot pedal. If the foot pedal is depressed before starting the process it won't work. 3) Is the current selector (0-10) set to zero?
the transformer has dual 120v windings to have it in 240v u join the 2 120v primary's together in series thats why theres a little bridge between the primary 120v windings if this makes sense lol
For others looking for info on this battery spark welder, I thought it might be worth noting that the "set current" label actually belongs to the the LED display _above_ the label. The knob below the label is the pulse duration for the weld.
709AD have lot lot better inside have biggest transformer, this have smallest transformer what sunkko welder have, not give 200A out. newer, not can weld 0,2 strip. maybe weld only thin 0,1 strip but not good. thats give less than 200A out and better 709AD model give 600A out. little better and can use li-ion 18650 battry welding lot better than this. this is toy. maybe if upgrade microwave transformer to this come lot better. OR install secondary wires new, lot more wire, mean now have wery think secondary wire need douple sguaremeters and lot more copper to secondary wires. youtube has made this upgrade too ,help little make better this but no lot.
I added more windings to the transfomer, not surewhy but seems like it bypassed the pressure switch for the probes.. but lots of power now.. charge area no longer works but considering how shitty the solder job is on the board i figure ill use another power supply to charge lol
Replace the transformer with a microwave oven transformer minus the secondary winding. Replace the secondary winding with the original secondary from the spot welder, which is easily removable.
Hallo, ich habe grosse Probleme mit dem Gerät. Der Spotwelder erzeugt sofort einen Kurzschluss, wenn man ihn einschaltet oder den Prozess startet. Die 16A Sicherung fliegt raus. Wie stark muss die Sicherung sein, damit es funktioniert?
Hey, I've got a similar one that was also DOA. Turns out there was a short between the secondary windings. So there was a single loop of copper through the transformer. That kept tripping my circuit breakers. I've fixed it with a piece of plastic to keep the windings separated. Great channel BTW.
+righthere80 Ugh, I was hoping I wouldn't have to get out the transformer, but I guess that's pretty much the only remaining explanation for my problem as well. I'll have a look later this week, hopefully fix it in much the same way that you did :)
Hi, nice video I am using UK version I have changed internal fuse with a 15A as it States behind the machine 15 a max. also replaced plug fuse with a 13A fuse as some nutter put 20a in the UK plug. Thank you.
Usually that is a sign of overheating Mine does that when I use it to the point that it overheats Let it cool down and try again in about an hour or 2, it works for me
In the follow-up video (ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-SXxamjDQul4.html) I fixed it and confirmed that it was indeed overcurrent tripping my breakers.
Hi, great video, can you tell me what socket, and plug they used for foot switch? I have foot switch without any connectors(just pedal switch) and I would like to use it with my home made battery spot welder. Thanks
Did it actually function, as in, have you already used it for welding battery tabs? In that case, you're probably just looking at a bad solder joint (flip out the board, touch up the soldering of the foot pedal connection, should be good to go). If it never worked in the first place and failed as soon as you plugged in the foot pedal, it's probably the same issue that I had and you have to repair the transformer.
mine brand new connected something broke inside very large spark was seen. it sounds like soldering but doesnt not even small mark. any idea how to test what its broken?
Hmm, that is weird. There are really only three components in the high power circuit: the fuse, transformer and TRIAC. One of those must have blown. If nothing was visible afterwards, I'd assume it's the fuse, because it sits inside a cartridge.
I replaced the fuse by a new one and no luck. I will have to take it apart and check what is going on. What model is your transformer any link to check specs?
Hi, I had same problem had large spark after that it stop working, now everything when I power it on the LED comes ON then fuse just trips. Checked continuity on probes, triak and 240v cables going to transformer all shorted.
