Making a 4.5 Volt Battery Pack From a 9V Battery
by protostack in Circuits > Electronics
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Making a 4.5 Volt Battery Pack From a 9V Battery

This instructable is all about splitting a 9V battery into 2 smaller 4.5V battery packs.
The main reason for doing this is
1. You want 4.5 volts
2. You want something physically smaller that a 9V battery
The main reason for doing this is
1. You want 4.5 volts
2. You want something physically smaller that a 9V battery
Dismantle Your 9V Battery


This is your chance to be destructive. Peel back the casing of the 9V battery and you will find 6 AAAA (yes quadruple A) batteries. Each battery produces 1.5V.
Separate 3 Batteries and Tape Them Up

Next you want to seperate a set of 3 batteries, ensuring that they stay connected to each other. Tape them up with electrical tape so they form a neat bundle.
Add 2 Leads

Next, solder a piece of wire to each end of the battery chain. These will be the positive and negative battery terminals.
Tape the Whole Thing Up

Nothing hard here. Tape the whole thing up into a secure bundle.