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18500/18650 Double Charger - TP4056 (added 18650 mod)

by Pucel_a Jan 25, 2019
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Great design, thanks for sharing. The PCB cover snaps perfectly.

Could you please make a 18650 version of this?

By wikipedia, the diameter is the same, but 18650 is 15mm longer than 18500.


Thank you.

I have not so much time, so I´ve just uploaded same .stl but 15mm longer.
Didn´t change the 18500 numbers on the sides as is not easy for me, but I prolonged 15mm specially for you, and 18650 batteries.

Please, try printing it and if it works just leave a comment over here, to let us all know if it works.

Thank you


Looks like the 18650 mod has an issue: slicing in slic3r it creates disconnected parts. Looks like the objects in theSTL file is not connected on the stretched surfaces.

Good/not so bad news:


Just arrived to combine the 3 pieces with another computer and got it.

A minor problem appeared, just the 3dbuilder program made some minor errors while combining but nothing important, now, it doesn´t detect the 3 pieces.

I think, with CURA you can print any of them and it is going to be totally operative as a charger.

Please, let me know how it works.


The final_2.0 file look OK in slicer.
I'll print it out and respond to you.



How was the printing of the 18650 version?

Fits perfectly, I've posted my make: https://www.thingiverse.com/make:665617
Thanks for sharing.

18500/18650 Double Charger - TP4056 (added 18650 mod)
by M1kka

Yes, I saw it just after my question, thank you

Comments deleted.

Awesome, thanks.

I'll let you know how it works.

See my make: https://www.thingiverse.com/make:665617

18500/18650 Double Charger - TP4056 (added 18650 mod)
by M1kka