Used a Digital Multimeter (128/366)

“Benjamin Franklin may have discovered electricity, but it was the man who invented the meter who made the money.”
~ Earl Wilson

A multimeter is a tool used to measure electric current, its strength, and other things (hence the name, “multimeter”). Honestly, I’m not sure what the extent of the functions of one usually is, because I’d never used one before, but Nick’s step-dad Bill got one for him and we thought we’d mess around with it. This was one of the less expensive ones (they range from under $10 to hundreds of dollars – Bill joked that it cost a dollar), but it was still a cool little device.

We tested the strength of a battery by completing the circuit with the electrodes of the multimeter.  AA batteries are a 1.5v cell.  This one had about 1.3v left, which meant that although it wasn’t freshly charged (it’s a rechargeable battery) it was still useable.

AA, AAA, C, and D batteries are all supposed to start with around 1.5v and that number gradually declines with use.  When the charge is down to 2/3 the voltage, the battery is low and is pretty much not useable anymore.

As I mentioned before, this multimeter has more functions – although we didn’t get a chance to use it for more of them, I’m glad we have this in our toolkit now.  Thanks Bill!

Related Links:
Palm-Size Handheld Digital Multimeter, DT830B

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