Customer Reviews for SUNKKO 709AD Pulse Spot Welder Solder Welding Machine for 18650 Battery 3.2KW

The unit works good. Also the info on Amazon said it was a soldering station also but it is not. Note the instructions could be a little better but it is a good unit and anyone buying it should know what they are doing anyway the unit is designed to work with a table all the hardware is there all you will need is a table or small desk to mount it to. All in all good little welder lots of adjustments makes great wels.

After checking out various reviews of the different models of battery tab welder out there I decided to purchse this model. Packaging was a little iffy and I expected that from a Chinese imported product. Fortunately nothing in the package was damaged. So far I haven't been disappointed. The machine itself seems to be reasonably robust, but I ended up wrapping the leads on the handheld attachment in heat resistant kapton tape to prevent a meltdown since I adjusted the tips on it to their closest position. The highly adjustable power settings and multiple pulse weld functions provide plenty of power even on a 110V circuit. I actually purchased the unit to use for something other than batteries and it worked flawlessly for that purpose. I'm sure I'll be using it for battery packs at some point down the road, but for now it served its purpose nicely. For the price I'm really impressed with what it comes with for accessories. I'd buy it again in a heartbeat.

Did everything I expected and wanted from it, have made several batteries with it so far and performs well. The controls took a minute to learn but are intuitive and easy to use.

Good product

I like this unit! It works well for welding thin Stainless Steel sheet material.

Bought this to build a diy ebike battery. Works great. Does seem a little under powered. Don't have to worry about blowing through anything. Definitely wouldn't be able to use a welding pen. Overall, it's a budget welder and works pretty darn good.

I did not know I needed to upgrade my supply power to accommodate the 60amp recommended. Should have read all info. But it does the job on the thinner metal, with it did have more power for the thicker normal tabs.

The welder is easy to setup. Welded 0.1mm nickle strip without any problem. It is definitely not heavy duty but it works.

I've never used a spot welder before but it was very easy for me to set up in about 15 minutes, the controls are intuitive and it had a double redundancy firing method, so I feel safe when using it.

Not bad, better than expected.Tried 1mm, 1.5 & 2mm thickness welding strips.They all work, you have to find the sweet spot for each (amps & pulse).Spring loaded electrode system kinda mickey mousy, a little crazy glue took care of that.Just tested some welds for now, works well, must have clean surfaces (great welds & minimizes sparking).Foot switch works good (better control).I'll be building a power pack soon and will be able to evaluate better.It'll be nice not to have to solder Li-on batteries from now on (scary!)