Battery Charging Test - Tektronix Keithley 2281 Series Reference Manual

Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual

Battery charging test

Before the test, set the charging voltage V
As shown in the following figure, the charging is divided into two parts.
Constant current phase: In the initial stage, the instrument charges the battery with I-limit, and
the output voltage is smaller than V
Constant voltage phase: When the charging voltage reaches the V
charges the battery in constant voltage while the charging current is decreasing gradually.
When the charging current falls to near 0 A, the charging is finished. At this time, the battery open
voltage equals V
To charge a battery using the front panel:
1. Select the battery test function in the startup screen.
2. Press the MENU key.
3. Under Measure, select A-H.
4. Set the target voltage next to V-Full. If the battery works in the range of 3.8 V to 4.2 V, set this
value slightly higher than 4.2 V.
5. Set the maximum charging limit next to Source I-Limit.
077114601 / March 2019
Figure 99: Charging phases
set
.
set
and the maximum current I-limit.
set
but increasing.
Section 3: Functions and features
value, the instrument
set
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