Sometimes I have batteries sitting in my desk loose out of the package. How can I check that I am putting all new batteries in my devices?
The best and only way to test your batteries is with a battery tester like our Pocket Technician (# 662). You can buy a battery tester at most electronics stores such as Radio Shack. Prices range from approximately $7 to $30. We recommend one that has a digital readout so you can see exactly how much voltage your battery is putting out. For AAA, AA, C, D and N cell sized batteries, a brand new alkaline battery should read 1.6 Volts on a digital battery tester. A basic battery tester will have a gauge which tells you “replace”, “low” or “good”. Any type of battery tester is an invaluable piece of equipment to have when working with battery powered devices. With a battery tester you will never have to guess if your batteries are good or need replacing.
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