AA batteries are common in many household devices.
Many common household electronic devices require AA batteries for proper operation, whether they're Nimh (nickel-metal-hydride) or alkaline batteries. One common issue with AA batteries is determining how much life they have left. A CD player, television remote or game console controller might not work unless its AA batteries hold charge. Fortunately, as of November 2010, Delkin Devices sells a reliable battery tester for $14.99.
Instructions
1. Toggle the switch on the front of the tester to the desired battery type. The tester accepts rechargeable and non-rechargeable batteries.
2. Insert the battery into the battery acceptor. Double-check that the battery's positive end meets the tester's positive connection.
3. Look near the top of the device at the row of five LED lights. These lights indicate the battery's level of charge. If three, four or five lights are illuminated, the battery has a healthy charge. If two lights or fewer show up, the battery should be replaced or recharged.
Tags: batteries common, five lights
