Capacitor Battery Spot Welder, AWithZ UF20B 10.5KW Spot Welder, 3-in-1 Auto & Manual & Foot Pedal Three Modes Welding Equipment for 18650/LiFePO4 Lithium Battery Pack Building with Foot Pedal
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Why This Deal Is Worth It
If you are tired of spot welders that take forever to cycle or provide weak, inconsistent bonds, the AWithZ UF20B is a serious upgrade. Unlike the budget units I have tried that struggle with thermal management, this capacitor-based system charges in five minutes and delivers a massive 10.5KW pulse. The three modes are not just fluff; the foot pedal option is essential for precision when you are holding delicate nickel strips in place. It handles 0.2mm nickel-plated steel with ease, meaning you spend less time re-welding failed connections and more time finishing your project. This is for the DIYer who is building their own battery packs for solar setups or e-bikes. If you are currently paying a premium to buy pre-assembled battery modules, this tool pays for itself by letting you assemble your own high-capacity packs for a fraction of the cost. That is roughly six months of school lunches saved by avoiding markups on custom battery builds. The one caveat is the learning curve on the 99 power gears. Do not just jump into your main project. Spend an hour testing scrap nickel strips to find the perfect setting for your specific material thickness, or you will likely burn through your tabs.
Thomas Brooks
Premium Durability & BIFL Expert
About this item
- 5 Minute Quick Start Spot Welder: We use a wide voltage input of 100-240V and an adapter of 15amp high current for fast charging Connect the spot welding machine to the power supply using our adapter, and quickly reach the spot welding mark within 5 minutes (the display screen shows OK for spot welding), which can be used anywhere in the world
- 3-in-1 Mode: Our spot welder has an automatic mode and a manual mode, as well as a foot pedal mode. The automatic mode is where you adjust to the proper setting, insert the spot welder and start working immediately. Manual mode is to adjust to the manual mode, press the button on the spot welding pen will output once. Foot Mode, when you use the foot pedal, the positioning of the soldering probe is much easier. It is very convenient to step on the foot pedal and the spot weld pen will output a signal once
- Wide Application Range: A well made, compact spot welder. Not only for battery pack work, such as cylindrical batteries such as 18650/14500/21700, but even LiFePO4 batteries, industrial batteries, etc. And it can also be used for spot welding of different materials, for example, such as nickel plated sheet, stainless steel sheet, iron sheet, 0.2 nickel-plated and 0.2 nickel-plated butt-welded to achieve a material thickness of 0.4mm. There are 99 adjustable gears, with different gear requirements for different materials
- Professional Battery Spot Welder: Equipped with built-in super energy storage capacitors, Ultra capacitors have many thoughts of cycle life, and the maximum pulse welding power can reach 10KW. It is a brand new MOS, with no interference to the circuit or tripping issues, stable and sustainable operation, making it the best choice for professionals and DIY enthusiasts. But please, you must use it by connecting it to the wall power and charging it while using it, because the Faraday capacitor stores very little electricity and will be consumed within a minute or two
- Product design: The exterior design is rounded with no corners, so it won't hurt when a body part touches it. The shell is made of aluminum alloy, comfortable to the touch, beautiful appearance, not easy to scratch, but also has a flame-retardant nature, very safe
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