Tektronix 222 - 2.4 BATTERY OPERATION

Getting Started-222 DSO Operators Manual
Figure 2-1. External Power Input.
2.4 BAlTERY OPERATION
The internal battery of the instrument is a sealed lead-acid type with
four cells. The sealed cells are rechargeable using the battery-
charger adapter supplied with the instrument. Operating time is at
least two hours with a fully charged battery. When the charge level
reaches a point that only a short amount of operating time remains, a
low-battery indicator
( kd ) is displayed in the upper right corner of
the readout. The oscilloscope turns off automatically when the
battery voltage drops below
+ 7.32 V.
2-2 REV JUN 1989