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2. Battery tester - Wikipedia

   en.wikipedia.org/wiki/Battery_tester

   Battery tester. A battery tester is an electronic device intended for testing the state of an electric battery, going from a simple device for testing the charge actually present in the cells and/or its voltage output, to a more comprehensive testing of the battery's condition, namely its capacity for accumulating charge and any possible flaws affecting the battery's performance and security.

3. Ohmmeter - Wikipedia

   en.wikipedia.org/wiki/Ohmmeter

   Subsequent designs of ohmmeter provided a small battery to apply a voltage to a resistance via a galvanometer to measure the current through the resistance (battery, galvanometer and resistance all connected in series). The scale of the galvanometer was marked in ohms, because the fixed voltage from the battery assured that as resistance is ...

4. Multimeter - Wikipedia

   en.wikipedia.org/wiki/Multimeter

   Battery checking for simple 1.5 V and 9 V batteries. This is a current-loaded measurement, which simulates in-use battery loads; normal voltage ranges draw very little current from the battery. Various sensors can be attached to (or included in) multimeters to take measurements such as: Luminance; Sound pressure level; pH; Relative humidity

5. Electric battery - Wikipedia

   en.wikipedia.org/wiki/Electric_battery

   A battery's capacity is the amount of electric charge it can deliver at a voltage that does not drop below the specified terminal voltage. The more electrode material contained in the cell the greater its capacity. A small cell has less capacity than a larger cell with the same chemistry, although they develop the same open-circuit voltage. [49]

6. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Test equipment - Wikipedia

   en.wikipedia.org/wiki/Test_equipment

   Battery tester, used to test the state of an electric battery; Continuity tester, used to determine if an electrical path can be established between two points Cable tester, used to verify the electrical connections in a signal cable or other wired assembly; Receptacle tester, used to verify that an AC wall outlet is wired properly; Test light ...