Making Alkaline Batteries from Scratch and Powering Motors

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Hey everyone and welcome to Part 2 of the 3D Printed Zinc Carbon / Alkaline Battery series!
Today we'll be making Alkaline batteries from scratch using my new updated process for manufacturing the battery cells, and then we're going to power a couple different things with them as a lot of you were asking me to do that in my last video.

Some details I forgot to mention in the video:
- The cathode mix is a 5:1 (by weight) ratio of Manganese Dioxide (MnO2) to Carbon Black (C). This is just the ratio I've had the most success with, but I still haven't tested out higher amounts of MnO2, and based on an article on Zinc Carbon batteries by the University of Cambridge (), the ratio can be as high as 10:1 MnO2:C, or as low as 1:1.

- The general consensus based on my research on the best way to manufacture zinc carbon and alkaline MnO2/C based ('dry') cells is that adding enough electrolyte for everything to be slightly damp after fully absorbing through gives the best performance compared to having everything completely soaked in electrolyte.

Duracell Battery MSDS listing electrolyte concentration:

Chapters:
00:00 Intro
00:54 Organization System for Cell Pieces
01:46 Solid Graphite in place of Pyrolytic Graphite Sheets
02:33 Fast Method for making Paper Separators
03:39 Assembling the Half Cells: Electrode Prep.
03:52 Electrode Surface Preparation
04:45 Inserting Electrodes into Shells
05:22 Weighing Individual Parts
07:09 Anode Half Cell Assembly
08:13 Cathode Half Cell Assembly
10:11 Joining the 2 Half Cells
11:54 Completed Cell
12:14 Adding the Electrolyte
13:58 Testing Cell Voltages
15:38 High Current Discharge on a Test Cell
18:52 HOW MANY MILLIAMPS!!??
20:50 Low-Current Discharge Testing the Cells
21:48 Putting Cells in Series
22:21 Powering an LED
24:02 Powering Small DC Motors
25:16 Testing with Datalogger
26:57 SD Card Issues / Outro