Printable flexing battery charger module

Batteries and Chargers Chargers
1

Stumbled across this on thingverse

This thing contains AA (14500) CR123A (16340) 18650, 18700 (for longer protected batteries) 26650 and multiples

Cool thing is the design there are slits on the ends, you take wire and wrap em thru the slits for the contacts to the batteries, the design itself has the spring made from the printing, combine this with some of those TP4056 modules and voila…instant really cool DIY homemade charger!

There is even one with them in series (for those guys with hobby chargers and balancing plugs [I guess a strip of copper soldered on the balancing lead slipped between the batteries for proper balancing])

2

and just as i thought of firing up solidworks and making a 18650 holder with a slot to hold a common tp4056 board.
i have been making “ghetto” chargers with cheap ebay 2 and 4 cell “blossom” holders with the cells parallel and the board glued to the bottom.

3

Cool huh, there was someone here that offered fairly inexpensive printing for BLF only members…forgot who it was

4

I would love to get ahold of a 1 or 2 cell 18650 holder like that. No need to worry about bad wires, just swap them!

If anyone prints some of the I would really like to be on the list.

Matt

5

snakebite, which holders are you talking about?

I’m going to be building my own charging setup soon using the cheap $2.50 spring loaded chargers on FT, but with the guts torn out and connected to a hobby charger.

6

18650holders
these have the contacts formed right so they dont snag wrappers.

7

Yeah but they aren’t DIY printable ones :stuck_out_tongue:

8

if i get bored i will create what i set out to do.
a 4 cell with pockets to hold 4 4056 boards.
anyone know of strong CLEAR filament for 3d printing?
idea is to have the lights from the boards show in their corner of the box.
i also intend to build a support in to prevent the microusb port from getting busted.