In the photo below we have the red and black wires cut and stripped ready to solder together.
NINE VOLT BATTERY SERIES
In series we expected 6.2 volts and this is what we got. (You would expect double the battery life with them in parallel delivering 3.1V)
We hooked up a multimeter and connected our 2 holders in parallel just for fun and got 3.1 Volts but we want 6 Volts so connected them in series. You can make your own or 3D print them but they are very cheap to buy. There are a variety of other options, you can get holders that take 1, 2, 3, 4, or 6 batteries. We used 2 AA battery holders back to back which gave us a similar shape to the 9Volt battery space in our mini Amp. We were hoping the power supply we're about to make (made up of AA batteries) would last longer that the 9V since the overall volume was larger - so far, the one we have created is yet to need a replacement battery! Connecting Your AA Batteries # If you wanted 9 Volts, then you have the option of including an extra 2 batteries in your project. So, we decided to use 4 of these 1.5V AA batteries (with a total 6V) to replace the expensive 9V battery. We realised we could buy over 30 cheap 1.5 Volt AA batteries for less than the price of just one 9 Volt battery. You can pick up 9V battery clips cheaply, but we up-cycled one from an old battery which turned out better than a bought one. We got a 32 pack of 1.5 Volt AA Batteries for only £2 (from PoundLand) - compared with the Duracell 9 Volt Battery that cost £7, this is going to be a lot cheaper no matter how the project turns out. 1.5V AA Batteries (4-6 batteries, depending on your desired output voltage).Most of the equipment used in our videos can be found on Amazon, we have an affiliated partnership with Amazon, any money we make goes into our University or College fund.
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