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The Jnchdghwa 21700 Battery Cell Assembly Mold Set is an essential tool for DIY enthusiasts, e-bike builders, and energy storage hobbyists who need to create reliable, high-performance lithium battery packs. This fixture ensures precise cell alignment and stable positioning during the spot welding process, significantly reducing the risk of defective welds and misalignment. While it offers professional-level consistency for your custom packs, users should note that it is specifically engineered for 21700 cylindrical cells and requires careful manual assembly to ensure all cells are seated correctly before welding begins.
| Model Part Number | I501015617A1 |
|---|---|
| Brand | Jnchdghwa |
No, this mold is specifically sized for 21700 cells. Using smaller cells will result in poor alignment and unstable welds.
It is designed to withstand standard welding temperatures, but it should not be exposed to open flames or direct contact with hot soldering irons.
No, this is a fixture for holding cells. You will need to provide your own spot welder and nickel strips.
The capacity depends on the specific arrangement layout of your pack project; refer to your module design to see how many modules fit the mold dimensions.
If used correctly, it should not damage wraps. Ensure the cell slots are clean before insertion to prevent scratching.
Verify you are using 21700 cells; check if there is debris or a damaged spacer wall in the mold.
Ensure all cells are seated flush against the base of the mold before beginning your welding pass.
Gently wiggle the pack vertically; do not force it, as this may damage the cell wraps.
To begin using the fixture, ensure your workspace is clean and free of metallic debris that could cause short circuits. Before inserting your 21700 cells, inspect the mold to ensure no residual plastic or foreign objects are lodged in the cell slots.
Compatibility: This specific model is designed exclusively for 21700 lithium-ion cylindrical cells. Do not attempt to use it with 18650 or other form factors, as this may result in loose connections and poor welding results.
Care Instructions: Clean the mold regularly using a dry cloth or light compressed air to remove dust. Do not use chemical solvents or high-heat cleaners that could warp the precision slots of the fixture. Store in a cool, dry place when not in use to maintain the structural integrity of the plastic molding.
