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That battery can't provide the momentary high-amp load and you would be better off using an automotive battery with at least 200amp CCA rating. Your connections are week. These DIY PCB boards just act as a timer and current limiter and cannot bring more amps than the source. You need a good power source to get a good and strong welds.
I was view videos, alternatif for using battery 12v . Using 2.7 500f can help the battery, best alternatif buying bifrc..no capasitor and weak. Battery
Can I spot weld a cable to a small thermostat (255 C) in steam iron or steam generator using a car battery or other power source? Do you think is it will work?
Don’t buy something you have to complete it by soldering a capacitor or what ever. The circuit board are always faulty. Why didn’t the producer leave the easiest last bit of work before selling it?
What is the principle of welding batteries? I understand the basics and that the welding spot should have the highest temperature for the shortest time. We have a spotter with a bunch of settings: first welding, second and third, where the second welding is the main welding and the third is hardening. There are also peripheral settings such as pause between pulses, current rise and fall times. So let's get down to business: the first and last welds should not have as high a current as the second. The first weld prepares the nickel strip for welding, the second welds it directly, and the third releases the strip. We have two main problems that I still can't figure out: 1. Why do the electrodes "stick" to the workpiece? According to my observations, this is due to the cross-sectional area of the electrode tip in contact with the nickel tape. On the one hand, a smaller contact area creates better welding, but the electrodes stick 👉👈 On the other hand, a larger area cooks worse. By increasing the current, the workpiece overheated too much and still nothing happened) 2. One electrode cooks and the other does not. In the case of DC welding, this is understandable. The "positive" electrode, where the current enters the battery substrate, welds better than the "negative" electrode, where the current leaves the battery. However, with AC welding, this is illogical for me, because the current flows back and forth across the workpiece. Maybe someone has a few gigabytes of information about welding batteries?) I want to absorb all the text from anyone that is related to welding batteries
mine is too..to weak...i tried also with 100Amps and 800Ca battery but it makes partks ar battery terminal and not to the spot pen! cheap and no good at all
@@charliemike5699 I'm starting to think that this board is basically trash, I've changed all wires from 12 to 8AWG and using I'm using a 10A 50c 3 cell Li-Po that during short pulses can supply current in the thousands, and still, this board has very short pulse time for a 0.20 nickel strip, I think the way to go is investing in Kweld, the best battery powered welder I've seen, not cheap at all though.
@@Eden_M oh yeah,kweld products are good...this cheapo weld are actualy for beginners who doesnt make some high performance packs...I remember watching someone here on you who modified this thing coz his welder burned a mosfett,I recalled he fixed whats broken and I think he added a capacitor/supercap cant realy remember anymore but his fix actualy worked...but then again thats after all the hassle...so yeah,k weld or those amazon bfirc portable welder would do you good even with thick nickels
@@charliemike5699 Maybe you're talking about the guy who used a wall wart to power his welder externally? He said they used to fry on him because when the voltage sag, the MOSFETs stay open and just explode? I tried this method, it doesn't change much because my pack is in a good shape, I will say though is that you can use whatever voltage you want (to weld) if you power it with external 12v. Then you only connect the negative to the welder, the external 12v just give open and closes the fets, need to be pay attention to the temperatures tho..
Looks too weak to fuse together a good connection. I was at least expecting a bit of spark when voltage applied. I want to see how to make a battery spot welder that be more powerful, takes only two hits to make good connect.
This is generally referred to as a "Sunday handyman". I think you should give up this kind of hobby because it can be dangerous. Or make people aware in your videos of what not to do. Sewing or knitting seems more reasonable to me.
