Battery check: suitable for almost all battery types, batteries and batteries (type aaa, aa, c, d) and button cells with 1.2 V / 1.5 V / 3.0 V and 9 V block batteries Easy to use: battery tester for quick and easy control of batteries and batteries, ideal for checking the current charging status of batteries found or lying around Display: digital display showing remaining battery voltage in volts and charging status with colour scale, simply insert the battery and read Measuring range: the measuring range of the battery tester is 1.2 V = 0.92 - 1.50 V - 1.5 V = 0.99 - 2.00 V - 3.0 V = 2.00 - 4.00 V - 9.0 V = 4.00 - 9.99 V Compact: fits in any drawer at home, does not take up space and quickly checks the battery status of found or freshly purchased batteries, the battery tester itself does not require batteries