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

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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

Dismantle Your 9V Battery

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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

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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

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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

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