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 Flux for Copper-to-Copper Welding is specifically engineered for lithium battery builders who want to spot weld copper with confidence. If you're working with copper tabs, terminals, or busbars, this is the secret weapon that helps you achieve strong, low-resistance welds without pushing your welder to the max.
Key Features:
🔩 Designed for Copper-to-Copper Welding
Perfect for welding pure copper components in high-performance battery packs. Whether you're using copper strip, terminals, or bus connections, this flux allows for solid welds with minimal current loss.
⚡ Nickel and Tin Additives
Infused with a special blend of nickel and tin, the flux improves heat transfer and bonding between copper surfaces. When activated, it creates a temporary conductive alloy layer, making welding easier and stronger.
🔥 Reduces Welding Resistance
This flux heats up the copper at the weld point, reducing resistance and helping your spot welder deliver a cleaner, more effective weld — even on thick copper.
🧪 Non-Corrosive and Safe
Safe for long-term use in battery environments. This flux does not corrode terminals, cell tops, or other conductive materials — ideal for precision welding on energy storage applications.
⚙️ Optimized for 2000A–8000A Welding Current
To achieve proper copper spot welding, your machine must deliver high enough current. This flux enables effective results even in difficult scenarios, including transformer and energy storage welders.
Contents: 100g Copper Flux
Form: Thick Paste
Use Case: Spot welding copper-to-copper on lithium batteries and related applications
Note: Cable not included. One-time-use product. Returns not accepted.
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.
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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
EVE 30PL 18650 3000mAh 60A Battery Cell - Tabless
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