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
This high-performance Pure Copper T2 Strip is made from 99.9% pure copper and delivers superior electrical conductivity for demanding lithium-ion battery applications. Soft, durable, and easy to work with, these strips are ideal for spot welding, copper-nickel sandwich configurations, and custom busbar designs.
Available in multiple sizes to match your exact build requirements.
Key Features:
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Material: 99.9% Pure T2 Copper
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Length: 5 meters (16.4 feet) per roll
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Multiple Sizes: Choose from several thickness and width combinations
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High Conductivity: Perfect for low-resistance, high-discharge battery builds
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Applications: Ideal for 18650/21700/26650 packs, e-bikes, robotics, tools, and powerwalls
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Flexible & Weld-Ready: Easy to shape and compatible with flux or high-power spot welders
Why Choose DIY500AMP Copper T2?
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Low resistance, great for high-current loads
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Compatible with copper-nickel sandwich builds
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Better thermal performance than nickel
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Clean edges and consistent finish
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Guaranteed purity and thickness – no recycled mix
Included in Package:
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1 Roll (5 meters) of Pure Copper T2 in your selected size
Note: Copper requires more welding power than nickel. For best results, use a powerful spot welder and copper welding flux for stronger bonds.
DIY500AMP.COM Design – Built with Quality in Mind.
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
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C
Clean, great price, and spot welded great with my smaller welder.Dont forget to get the copper to copper brazing paste on this site also. Really helps with bonding.
Thank you for your review! We're thrilled to hear that you're satisfied with our Pure Copper T2 Strip for Battery Spot Welding. We take pride in providing clean and high-quality products at a great price. We're also glad to hear that it worked well with your smaller welder. We'll definitely check out the copper to copper brazing paste on our site. Thanks for the tip! Happy welding!
W
Very pleased with product and shipping time.
s
I'm giving it four stars due to the fact that I have not used it yet...my spot welding machine apparently blew a mosfet...
J
Excellent! Thanks!
Thank you, Joseph. Glad the copper strip worked well for your build.
M
Great stuff.
Thanks, Miguel! Glad you're happy with the copper strip. We appreciate your support.
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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
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