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Discharge tests and capacity measurement of 9 volt transistor radio batteries at high current, 100mA to 500mA engineering data
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How to Test 9V Battery Cell Using Multimeter & Measure Voltage - YouTube
Collecting Batteries
16 AA +12 AAA + 2 C + 2 D + 1 9 Volt Energizer
Testing 9-volt batteries with your tongue.
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Two Duracell 9 volt Batteries
