Nine-volt batteries are one of the most common household items. It is rectangular in shape and has a polarized snap connector located at the top. There are several types of nine-volt batteries. There are nine-volt batteries made up of alkaline chemistry and there are those primarily made out of carbon-zinc. The rechargeable ones, on the other hand, are often made from lithium-ion, nickel cadmium and nickel-metal hydride.
It was first introduced to power early transistor radios. Presently, it is commonly used for clocks, walkie-talkies and smoke detectors. However, due to the rise of the different types of batteries, nine-volt batteries often end up just laying around inside the house unutilized.
Most batteries have a life span of four to six years. But there are actually many useful things one could make using nine-volt batteries and a few other household items. The following video presents three incredible life hacks with a nine-volt battery.
Image source: LXG Design
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