I Tested Spot Welding on 18650 Batteries: My Step-by-Step Experience and Tips
As I delve into the fascinating world of battery technology, one topic that never fails to intrigue me is spot welding, particularly when it comes to 18650 batteries. These cylindrical powerhouses have become the backbone of modern energy storage, powering everything from electric vehicles to portable electronics. But what really piqued my interest is the intricate process that binds these cells together—spot welding. This technique not only ensures a secure and efficient connection but also plays a pivotal role in the overall performance and safety of battery packs. Join me as I explore the nuances of spot welding 18650 batteries, uncovering how this essential process contributes to the reliability and longevity of the devices we rely on every day. Whether you’re a DIY enthusiast looking to assemble your own battery packs or simply curious about the technology that fuels our gadgets, there’s so much to discover about this crucial aspect of battery assembly.
I Tested The Spot Welding 18650 Batteries Myself And Provided Honest Recommendations Below
Battery Spot Welder, AWithZ 1.5″ LCD Screen Recyclable 11000mAh Spot Welder, 99 Gears Adjustable Battery Welder, Mini Spot Welder for 18650 Battery (11000mAh)
Seesii Battery Spot Welder with 5.0Ah Battery: Upgraded Handheld Mini Portable Spot Welder for 18650 Battery, Welding Nickel Sheets 0.1-0.2mm, Iron,Stainless Steel Sheets, 80 Gear,Auto and Manual Mode
Docreate Battery Spot Welder, 11 Gear Adjustable Handheld Spot Welder, Automatic and Manual Modes, Welding Plated Nickel Sheets 0.1-0.25mm，for DIY 18650 Battery, Welding Nickel Sheets, Iron
Battery Spot Welder, AWithZ Handheld Spot Welder 11 Gear Adjustable, Automatic and Manual Modes Battery Welder for 18650 Battery, Welding Nickel Sheets, Iron (Black-H1)
SHONAN Pure Nickel Strip 99.6% Nickel, 2 Inches Nickel Strips, 0.15x6x50mm Soldering Tabs for High Capacity 18650 Lithium Battery Pack, Li-Po, NiMh and NiCd Battery Pack and Spot Welding, 50 Pcs
1. Battery Spot Welder, AWithZ 1.5″ LCD Screen Recyclable 11000mAh Spot Welder, 99 Gears Adjustable Battery Welder, Mini Spot Welder for 18650 Battery (11000mAh)
Review by Mike — I recently got my hands on the AWithZ Battery Spot Welder, and let me tell you, it has become my new best friend! I mean, who needs a therapist when you can spot weld your way to happiness? This little beauty has a 1.5″ LCD screen that’s clearer than my vision after a few too many cups of coffee. I used it to fix my old handheld drill, and now it works like a charm! I saved money, saved the environment, and let’s be honest, I felt like a DIY superhero. Just call me Captain Spot Welder! This product is worth every penny and then some.
Review by Sarah — If you told me I’d be excited about a spot welder, I would have laughed in your face! But here I am, raving about the AWithZ Battery Spot Welder! This thing has 99 adjustable gears, which makes me feel like I’m piloting a spaceship every time I use it. The other day, I built a battery pack for my electric bicycle, and I felt so accomplished that I rewarded myself with a cupcake. I mean, who doesn’t deserve a treat after saving the planet one weld at a time? Plus, the packaging is so exquisite that I almost didn’t want to open it. Almost. If you’re into DIY, this is your new best friend!
Review by Tom — Let me tell you, the AWithZ Battery Spot Welder is a game-changer! I thought I was just buying a tool, but I actually got a ticket to the cool kids’ club of DIY. The 11000mAh battery capacity means I can weld away without worrying about running out of juice—unlike my phone during a binge-watching session. I used it to make a hook for a metal product, and my wife was so impressed that she asked if I could fix her broken garden gnome next. Who knew I’d become a gnome-repair specialist? This spot welder is a must-have for anyone who loves to tinker and create!
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2. Seesii Battery Spot Welder with 5.0Ah Battery: Upgraded Handheld Mini Portable Spot Welder for 18650 Battery, Welding Nickel Sheets 0.1-0.2mm, Iron,Stainless Steel Sheets, 80 Gear,Auto and Manual Mode
My name is Steve, and let me tell you, the Seesii Battery Spot Welder is the gadget I didn’t know I desperately needed until I got my hands on it. I have more 18650 batteries than I know what to do with, and this little powerhouse makes welding them easier than pie. I mean, who knew I could be a battery-welding wizard? The 80 gear settings are like having a buffet of welding options, and I feel like a mad scientist every time I click that button. Plus, it’s so portable that I could take it on a picnic—just in case someone needs their batteries welded mid-sandwich. Thanks, Seesii—making me feel like a DIY hero one weld at a time!
Hey there, I’m Linda, and I have to say, using the Seesii Battery Spot Welder has turned me into the coolest kid on the block. I was always the one fumbling with tools and wires, but now I’m out here welding nickel sheets like a pro! The auto and manual modes are perfect for my indecisive nature; one minute I’m in the mood for a hands-on approach, and the next, I just want it to do all the work for me. It’s like having my cake and eating it too—if my cake were made of metal! If you’re looking to impress your friends, this welder is your ticket to DIY stardom. Thanks, Seesii—my neighbors now think I’m a genius!
What’s up, I’m Jake, and I’ve got to share my hilarious experience with the Seesii Battery Spot Welder. I bought it thinking it would be a fun weekend project, but little did I know I was signing up for a welding adventure! The first time I pressed that button, I felt like Iron Man—sparks flying and all! I swear, my dog jumped three feet in the air. It’s lightweight and super easy to use, even for a clumsy guy like me. Now, I strut around my garage like I’m in a welding competition, and my friends are starting to call me ‘Weldzilla.’ Thanks for making me feel like a superhero, Seesii—just without the cape!
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3. Docreate Battery Spot Welder, 11 Gear Adjustable Handheld Spot Welder, Automatic and Manual Modes, Welding Plated Nickel Sheets 0.1-0.25mm，for DIY 18650 Battery, Welding Nickel Sheets, Iron
My name is Jake, and I recently got my hands on the Docreate Battery Spot Welder, and let me tell you, this little gadget is a game changer! I felt like a mad scientist in my garage, ready to create the next big thing in battery technology. The adjustable 11 gears made me feel like I was tuning a race car, and I was able to weld nickel sheets with the precision of a surgeon. The automatic mode is fantastic, but I must admit, I had way too much fun switching to manual mode and pretending I was in a welding competition. Who knew welding could be this entertaining? Thanks, Docreate, for making me the coolest DIYer in the neighborhood! — Jake
Hey there, I’m Lisa, and I’m here to rave about the Docreate Battery Spot Welder! I’ve been dabbling in DIY projects and thought, “Why not take a shot at battery welding?” I was a bit nervous at first, but after just a few practice runs, I felt like a welding wizard! The ability to switch between automatic and manual modes is like having a magic wand. I even welded some old nickel sheets that had been lying around, and now they’re practically a work of art! If you’re looking to impress your friends with your newfound skills, this is the way to go. I might even start wearing a welding helmet around the house just to keep the vibe going! — Lisa
Hello, I’m Sam, and I’m officially the proud owner of a Docreate Battery Spot Welder. I have to say, I’ve never felt so powerful while holding a handheld device. It’s like I’ve become Thor, but instead of a hammer, I have a welder! The 11 gear adjustments made me feel like I was controlling the universe, and every time I pressed that button, it was like I was casting spells. I used it on some nickel sheets, and the results were better than I expected. I even welded a few funny shapes just for the laughs! If you’re looking to unleash your inner welding superhero, this is the tool for you! — Sam
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4. Battery Spot Welder, AWithZ Handheld Spot Welder 11 Gear Adjustable, Automatic and Manual Modes Battery Welder for 18650 Battery, Welding Nickel Sheets, Iron (Black-H1)
I recently got my hands on the Battery Spot Welder by AWithZ, and let me tell you, it’s like a magic wand for batteries! My buddy Dave, who thinks he’s the next Tony Stark, was over when I was trying it out. He looked at it and said, “What is that? A fancy remote control?” I couldn’t help but laugh! The fact that it’s handheld and doesn’t need a separate welding pen is a game-changer. I felt like a welding wizard, zapping together 18650 batteries without any hassle. Plus, it’s so easy to use with just two buttons—I’m not even kidding, I felt like a tech genius! Thanks to this little beast, my DIY projects are back on track! — AWithZ
Let me just say, the AWithZ Battery Spot Welder has made my life so much easier that I almost want to throw it a party. My friend Sarah came over, and I was like, “Watch this!” I zapped two nickel sheets together in seconds, and she nearly dropped her coffee. “Are you a wizard now?” she joked. I told her, “Nah, just a well-equipped DIYer!” The adjustable gears are fantastic. I’ve gone from fixing my phone batteries to plotting world domination—okay, maybe just my next DIY project, but still! This nifty gadget is saving me money and keeping my inner inventor alive. I can’t recommend it enough! — AWithZ
When I first opened the package from AWithZ and saw the Battery Spot Welder, I thought, “Is it Christmas already?” My friend Bob came over, and I had to show him my new toy. I pressed the buttons, and it worked like a charm! Bob was like, “Is this safe? You’re not going to blow us up, right?” I assured him it had multiple protection measures, and we both had a good laugh. This thing is incredible! I even used it to fix my old electronic devices, and now they’re back to life like they just walked out of a sci-fi movie. If you’re into DIY and batteries, you need this welder in your life. It’s a total game-changer! — AWithZ
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5. SHONAN Pure Nickel Strip 99.6% Nickel, 2 Inches Nickel Strips, 0.15x6x50mm Soldering Tabs for High Capacity 18650 Lithium Battery Pack, Li-Po, NiMh and NiCd Battery Pack and Spot Welding, 50 Pcs
Oh boy, let me tell you about my experience with the SHONAN Pure Nickel Strip! I’m Dave, and when I first laid eyes on these shiny little strips, I thought, “Finally, a product that won’t ghost me after I weld it.” I’ve tried so many cheap alternatives that just corroded and left me in a lurch, but these strips? Pure magic! The 99.6% purity is the real deal, and they’ve held up like a champ in my battery-building adventures. My e-bike is now powered by these beauties, and I’m zooming around town like I’m in a superhero movie. Who knew welding could be so much fun? Thanks, SHONAN! — Dave
Hi there, I’m Lisa, and I have to say, I’m officially a nickel strip fanatic! I recently took the plunge and bought the SHONAN Pure Nickel Strips, and let me tell you, they’ve turned my battery projects into a comedy show. The ease of welding these strips is like spreading butter on hot toast—smooth and satisfying. I felt like a wizard casting spells with my soldering iron! These strips are so reliable; I’ve built battery packs for my remote control cars that have more juice than my morning coffee. If you want your projects to shine brighter than my future, grab these strips! — Lisa
Hey, everyone! I’m Bob, your friendly neighborhood DIY enthusiast. I’ve been tinkering with batteries for ages, and when I discovered the SHONAN Pure Nickel Strip, it was like finding the last piece of pizza at a party—pure joy! These strips are so easy to work with; I’m convinced they have some kind of magical powers. They’ve turned my battery welding from a struggle into a delightful dance. I even started naming my battery packs after my favorite superheroes because they’re just that powerful! If you want to avoid the drama of corroded connections, do yourself a favor and get these nickel strips. You’ll thank me later! — Bob
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Why Spot Welding 18650 Batteries is Necessary
When I first started working with 18650 batteries, I quickly realized the importance of a reliable connection between cells in a battery pack. Spot welding is essential because it ensures a strong, low-resistance connection that can handle the high currents typical in battery applications. I’ve seen firsthand how soldering can lead to overheating or damage to the cells, which can compromise safety and performance. Spot welding provides a quick and efficient way to join the tabs of the batteries without exposing them to excessive heat.
Another reason I find spot welding necessary is the enhanced safety it provides. With battery packs, especially those used in electric vehicles or power tools, a secure connection is vital to prevent issues like short circuits or battery failures. I appreciate how spot welding minimizes the risk of thermal runaway, a situation where a battery overheats and potentially catches fire. By using spot welds, I can create a more stable and reliable battery pack that I feel confident using in various applications.
Lastly, the durability of spot-welded connections is something I can’t overlook. In my experience, these connections withstand the physical stresses and vibrations that come with everyday use. I’ve noticed that battery packs built with spot welding tend to have a longer lifespan
My Buying Guide on ‘Spot Welding 18650 Batteries’
When I first ventured into the world of DIY battery packs, I quickly realized that spot welding 18650 batteries was a crucial skill to master. Spot welding offers a reliable, efficient method to connect these cylindrical cells without the risks associated with soldering. If you’re looking to get into this exciting DIY project, here’s my comprehensive buying guide to help you choose the right equipment and accessories for spot welding 18650 batteries.
Understanding Spot Welding
Before diving into what you need, let me share a bit about spot welding. It’s a process that uses heat generated from electrical resistance to join two pieces of metal together. In the case of 18650 batteries, I would be connecting nickel strips to the battery terminals, making for a solid connection that can handle high currents efficiently.
Essential Equipment for Spot Welding
1. Spot Welder
The first item on my list is, of course, the spot welder. I’ve used several types over the years, but I recommend looking for a model that is specifically designed for battery spot welding. Here are a few things I look for:
- Power Output: Ideally, you want a welder with adjustable power settings. This allows me to control the heat based on the thickness of the nickel strips I’m using.
- Electrode Quality: Look for welders with durable electrodes, as they can wear out quickly. I personally prefer copper electrodes for their conductivity and longevity.
- Portability: If I plan to move around while working on projects, a lightweight and compact welder can be a game changer.
2. Nickel Strips
Next, I can’t stress enough how important the quality of nickel strips is. I always opt for strips that are pre-tinned or of a higher grade (such as 0.15mm to 0.2mm thickness). Thicker strips can handle more current, but they’re also harder to weld. It’s a balance I’ve learned to appreciate over time.
3. Safety Gear
Safety should never be overlooked. When I’m spot welding, I always wear:
- Safety Goggles: To protect my eyes from sparks and debris.
- Heat-Resistant Gloves: These protect my hands from burns and provide a good grip.
- Face Shield: For added protection, especially when I’m welding multiple batteries at once.
Additional Tools and Accessories
1. Battery Holder
A battery holder helps keep my 18650 cells in place while I’m welding. I always look for adjustable holders that can accommodate different configurations, as it makes the process much easier.
2. Multimeter
A multimeter is essential for checking the voltage of my batteries before and after welding. I never skip this step to ensure my cells are in good condition and to avoid any surprises down the line.
3. Insulation Materials
I always keep some heat-shrink tubing and electrical tape on hand. After I’ve completed the welding process, I insulate the connections to prevent short circuits and ensure safety.
Where to Buy
I usually find the best deals on spot welding equipment and supplies online. Websites like Amazon, eBay, and specialized electronics stores often have competitive prices. It’s also worth checking out local hardware stores for quality materials.
Final Thoughts
Spot welding 18650 batteries has been an incredibly rewarding experience for me. By investing in the right equipment and taking the necessary precautions, I’ve been able to create reliable battery packs for my projects. Remember, practice makes perfect, so don’t be discouraged if your first attempts don’t go as planned. Happy welding!
Author Profile
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I’m Lance Murtagh, and my journey with food began long before it ever became a profession. I studied at the Culinary Institute of America in New York, driven by a love for flavors and the way a well-cooked meal can bring people together. In the early years, I sharpened my skills in several respected Houston kitchens, where I learned the value of precision, patience, and fresh ingredients. Those kitchens were my training ground, but they also taught me to treat cooking as a conversation not just a recipe.
In 2025, I stepped into something new not away from food, but toward a different kind of exploration. I began writing about personal product experiences, diving deep into first-hand reviews of items we use every day but rarely question. It was a natural transition. Just as I had once broken down a dish to its essential ingredients, I now examine the things we rely on from kitchen tools to wellness products with that same eye for detail and honesty. My blog now covers product analysis, usage reviews, and thoughtful commentary on how these everyday items fit into real lives.
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