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Description
Mechanic W04 Portable Spot Welding Machine For Mobile Phone Battery Board RepairMECHANIC Portable Spot Welding Machine Nickel Sheet Lithium Battery Welder For Mobile Phone Battery Board Repair Features: The operating voltage complies with mobile phone industry standards to avoid the breakdown of battery cells Breakthrough the precision of traditional soldering pencil the tip is as fine as 0. 5mm Multi power adjustable output, precise welding The spot welding machine is also a power bank with a capacity of up to 3850mAh It is
MECHANIC Portable Spot Welding Machine Nickel Sheet Lithium Battery Welder For Mobile Phone Battery Board Repair
Features:
Specifications:
- The operating voltage complies with mobile phone industry standards to avoid the breakdown of battery cells
- Breakthrough the precision of traditional soldering pencil the tip is as fine as 0.5mm
- Multi-power adjustable output, precise welding
- The spot welding machine is also a power bank with a capacity of up to 3850mAh
- It is suitable for the replacement of mobile phone electronic components and small battery boards, and precision welding of lithium battery nickel chips
- It can weld nickel sheets of lithium battery and supports welding of mobile phone batteries such as Apple, Xiaomi, Huawei, etc
- Four gear adjustment, multi-power adjustment, output, and precise welding
Specifications:
- Product name: Maintenance Lao miniature battery spot welder
- Product Model: W04
- Product size: 112 * 85 * 25mm
- Battery capacity: 3850mAh
- Output voltage: 4.2V (Max)
- Output current: 650A (Max)
- USB output: 5V 2.4A (Max)
- Micro USB input: 5V-2A
- Output interface: Micro/IN input
- Recommended nickel strip thickness: 0.1~0.2mm
- Scope of application: It is applicable to the replacement of mobile phone electronic components, small battery boards, and nickel sheets of lithium batteries equal precision welding
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
It works and I’m happy!
Color: Red
This item is terrific! A bit noisy but it’s compact and works like a charm. Inflates my tire quickly. I have not used it to jump start my car, but I’m convinced it would work just fine. Great price too!
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Reviewed in the United States on May 29, 2026
★★★★★ 4
Good thing to keep in your trunk
Color: Red
This has been a pretty helpful thing to have in the car. My tires have been losing pressure recently and this helps keep them topped off while I wait to change my tires. It's easy to use and the value for the price is great. The main issue is that it seems to need a full charge in order to jump a car because I had issues using it to jump my car when half charge, but no issues at full. Also the cable lengths are a bit short.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Worked like a charm to jump start my Mazda
Color: Red
My Mazda CX-30 wouldn't start one day. I knew these rechargeable jump starters were a thing so I jumped on Amazon and got this one same day. Worked like a charm!
Inside the main unit is basically a giant power bank. It charges with a USB-C in, which is awesome and universally available. It even has a USB-A out port to charge another device. I charged it up to full when I first got it, even though it already had some juice in it and I *think* you'd be able to get an emergency jump right out of the box if you needed to.
The directions are simple. Plug the battery clamps into the box, then clamp them onto your battery. A green light tells you that it's ready to go. Press the BOOST button, then go into your car and start it up with in 30 seconds. Then remove the clamps and away you go. No sparks, no scary sounds, no worries. I jumped it twice and it still had enough charge for possibly a few more.
Other great emergency features: the tire inflator has programmable pressure. The light is nice and bright and stays steady for a flashlight or blinks for emergency. And I already mentioned the USB out for charging another device.
This is a great, indispensable emergency device for anyone's car. I'm glad I got it and I'll make sure it stays charged in my glove box.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Great for emergencies !!
Color: Red
This GOOLOO A3 jump starter is super handy to have in the car. It started my vehicle quickly with no issues, and it’s really easy to use.
The built-in air compressor is a big plus. It fills tires fast, and I like that you can set the pressure and it shuts off automatically.
It’s compact, holds a charge well, and feels solid. Definitely a great all-in-one emergency tool. Highly recommend!
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Reviewed in the United States on April 23, 2026
★★★★★ 4
Great little tool
Color: Red
Does at it should. It's a little loud when using it on a car tire. Was unable to jump start a dead car. Battery life is fairly decent. Good for emergencies
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Reviewed in the United States on April 25, 2026
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