3D Printed Fish Paper for 21700 Batteries
Print Profile(1)

Bill of Materials
- 21700 Battery x 1:
Description
This 3D printed fish paper insulator is designed specifically for 21700 battery cells. It provides reliable insulation for the positive terminal area and helps improve safety in battery pack builds, repairs, and custom projects.
Made for a precise fit, this part is ideal for replacing damaged or missing insulating rings. The design is simple, durable, and easy to print, making it perfect for hobbyists, makers, and battery modders.
Features:
- Designed for 21700 cells (especially BAK N21700CG-50)
- Helps protect against short circuits
- Accurate and clean fit
- Easy and fast to print
- Ideal for battery pack assembly and repair
Note: You can always adjust the scale of the model if needed. Some Batteries are bigger or smaller.
Please always handle lithium-ion batteries carefully and follow proper safety procedures.
License
You may create derivative works based on this object, provided that all such derivative works are published exclusively on the MakerWorld platform and include proper attribution to the original creator. You may not share, upload, host, distribute, or publish this object—or any derivative work of this object—on any other digital platform, marketplace, or distribution channel. Commercial use of this object and any derivative works is strictly prohibited. This includes, but is not limited to, selling, renting, sublicensing, or using the object in any context in which you receive monetary compensation or other financial benefits.















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