For battery cells, review the product description for real-world current recommendations, testing notes, and application guidance. Manufacturer maximum ratings should be treated as limits, not the best target for long-term pack health.
Description
Product Description
Needs to be used while charging
UF20B Built-in Farad Capacitor
Supports global voltage, input voltage is 100-240V.
Built-in adapter makes the spot welder look neater.
The UF20B stores energy in its capacitors for welding pulses. Keep it connected to its specified power supply during operation.
When you find unplugging the power supply, it can still be turned on because there is only a little bit of power inside, after that it will slowly consume by itself.
If you are a beginner, please read our instruction manual, use our matching nickel sheet to practice more, find the force of hand pressure, familiar with the welding machine.
Build And Repair Battery Packs
Battery welding can build 18650/21700/26650/326650 battery packs.
Building Ebike Pack
Using old product batteries and replacing them with damaged ones can give them new vitality and save money.
Repairing the 18650 battery cell packs for drills and other tools
Transplantation of Mobile Phone Batteries
Repair laptop batteries and car batteries.
When your laptop battery is not durable and often charges for several hours, then quickly runs out of battery, you can purchase a laptop battery and transplant the original protective board onto the purchased battery, allowing your phone to last for several more years.
Different materials can be spot welded.
Repair various products with batteries.
Such as handheld drills, electric fans, electric bicycles, remote-controlled vehicles, pet nail grinding tools, etc., to revive old equipment and protect the environment.
10.5 KW High Output Welding Power
- After buying the product, please use it while charging.
- In the use of is, please first in the waste material to practice, not directly on the operation of your can use the battery, otherwise may be unfamiliar with and damage your battery, so please familiarize yourself with the practice of our spot welder many times.
- When spot welding, please make sure to press hard on the material, so that your material and the metal part of the battery are close to each other with no gap, if there is a gap, it may make your material and the battery have a very big hole, or even spot through the battery.
- If you want to use it to add length to your battery lugs, please put a flat thing under your battery, you can't just put nickel sheets on top of the lugs and spot weld them directly, you need a flat thing under the lugs to place the lugs.
- This is a high power spot welder, there will be a small amount of sparks generated during the spot welding process, so it is recommended to wear goggles.
0.4mm nickel plated sheet
0.4mm steel sheet
0.4mm iron sheet
0.1mm pure nickel sheet(Flux required)
0.1mm copper sheet (Flux required)
Materials such as these can be spot welded, and even thicker materials may be welded.
For building battery packs, this spot welding machine is professional.
Spot Welder Lead Pens
The new intelligent hand-controlled pen is controlled at will and triggered precisely.
On the basis of automatic spot welding, the intelligent hand-control welding pen is created again, which can control the trigger time at any time and spot weld meticulously and more accurately, and it can really be controlled at will and triggered accurately.
Removable Aluminum Oxide Copper Soldering Pins
Refuse to use low-quality brass, purple copper fake welding needle only use high quality aluminum oxide copper real welding needle, safe and durable.
Manual welding button
Control the trigger time at any time, precise trigger
Comfortable to hold, not tired after a long time
Foot Pedal Mode
The spot welder is set up to attach a foot pedal. This frees up both of your hands to pinpoint your position and then step on the pedal on the floor, making it easy to get your job done.
Button Marker
We've labeled the buttons next to each one so that you can be very clear about what the button means without an instruction manual or other documentation.
Aluminum Alloy Material
The spot welder has a rounded curved appearance so that our body parts won't get cut when we touch them. The shell is made of aluminum alloy, which is very tough and strong, very safe.
Manuals and setup guide
The display provides separate adjustments for welding mode, output level, preheat, pulse interval, trigger delay, and repeat count. Preheat sets the first pulse, the interval sets the pause before the main weld, and trigger delay controls the wait after electrode contact in automatic mode.
Wait for the display to show “OK” before welding. The manual explains automatic triggering, manual triggering with the smart pen, and the foot-switch connection. Start with low settings on test material and keep the unit connected to power during use.
Orders ship from Florida when inventory is available. Lithium-ion cells require proper handling, protected packs, correct chargers, and safe storage. Do not solder directly to battery terminals.
Payment and Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
T
Great machine and the owner of the store is cool aswell veary helpful and spot welder works great with bickle and copper
Thank you for your positive review! We are glad to hear that you are enjoying our AWithZ UF20B- 10.5kW Spot Welder and that our owner was able to assist you. We appreciate your support and hope to continue providing great products and service to you in the future. Happy welding!
R
Fabulous machine for the money. Works great. Scroll menus are frustrating but when you're on a budget, you are getting a lot for what you spend. Let me edit this comment. Scroll menus are frustrating for me because I always press the wrong button to select of move. Lol. A rotory encoder would be a nice upgrade. I tried to build one with a similar type control and a knob and spent more for a lot less machine. I'm going to add to this. I carefully set this machine on some dead cells and went to work. I was repairing a bad 26 volt 7s24p pack. Many factory welds had released. Sadly there were more than I realized and I was not going to be able to weld through several layers of strip so I peeled the strips. The factory ones came off clean. My welds with this unit would not come loose without tearing the nickel. I would like to buy some longer leads and that is it. You are right, once it is set, you aren't fooling with adjustments so the rotory encoder is just a luxury that risks getting hit
Thanks for the detailed review, Rich! Glad the welder has been useful, and we appreciate your feedback on the controls. Please contact us through the store if you'd like help checking compatible lead options for your UF20B.
You may also like
Let customers speak for us
Everything is great 100%recommended fast and
Everything is great 100%recommended fast and professional
Daniel Kammerdiener
One of my cell orders was short one cell
One of my cell orders was short one cell. When I went to send a text to the customer contact (this is rare and awesome way to reach out), the reply on a national holiday came within 15 min. That level of customer service is incredible, like family. I really appreciate that!
Joseph Krienert
Wow, these cells are great!
I purchased some of these tabless cells to try on my 1S 3" HD Toothpick drone build, and, albeit a bit heavy for 1S, it flies pretty well. Not a freestyle monster, but an endurance beast with decent send. These cells shrug off the demands of a BETAFPV Matrix HD AIO flight controller/12A ESC and some 1202.5 11000KV motors. I'm getting 15+ minutes of speedy flight time from a single cell trying not to go below 3.2V, and about 20+ minutes cruising. Love these cells and will definitely buy more when time comes, only from DIY500AMP, who are terrific!
VN in AZ
What customers think about the store
Specializes in high-quality lithium-ion cells with exceptional fast shipping (often 1-2 days). Outstanding customer service with knowledgeable, responsive owner. Competitive pricing, authentic products, genuine manufacturer cells tested to spec. Popular for po...
AI-generated from customer reviews.
Batteries Cells Service Shipping