1656 & 1657 Battery Element Tester Owner’s Manual
STS Instruments Page 24 of 88
lower peak voltage reading. The reading will of course, depend on the amount of reduction in
back EMF caused by the battery cell being tested. Refer to Figure 4-2 for reference.
Figure 4-2: Battery Element Test Waveform
4.3 No Load Conditions
To ensure sufficient test voltage levels are available for an actual unit under test, a certain
amount of over-voltage is to be expected during idle conditions (no load). It is not
recommended that this unit be left set to its maximum voltage output during idle conditions for
extended periods of time such as breaks, lunch hour, etc. The high over-voltage levels may
damage the internal switching coil or the SCR.
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