App-14
IM 765501-01E
Charge/Discharge Characteristics Measurement of Secondary Batteries (Lithium-Ion
or Nickel-Hydride)
The GS610 functions can be used to carry out charge/discharge characteristics tests of
lithium-ion batteries, nickel-hydride batteries, etc.
In boost charge operation, constant current charge using large current of approximately
2C to 5C (2 to 5 times the battery capacity) is carried out. When the battery voltage
reaches a specified level, the operation is switched to constant voltage charge. In
constant voltage charge operation, the charge current gradually decreases. When it
decreases to a specified value, the charge operation is stopped.
The Auto V/I function of the GS610 switches from battery voltage measurement to
charge current measurement by synchronizing to the switching of the operation mode
from constant current charge to constant voltage charge.
• Charge Test
Details of Operation
1.
The GS610 generates constant current to the secondary battery and measures
the voltage.
2.
When the voltage of the secondary battery reaches the charge voltage, the
GS610 switches from voltage measurement mode to current measurement
mode.
3.
When the measured current reaches a given value, the GS610 stops the output.
Key Points in the Operation and Setting
1.
Switching the measurement function using the Auto V/I function: See section
7.7, “Turning Auto V/I ON/OFF.”
2.
Stopping the output using the computation function: See section 8.5, “User
Defined Computation.”
3.
Saving the measured data using the storage function: See section 9.1, “Storing
the Measured Results.”
Connection Procedure
Connect the OUTPUT terminal to each end of the battery with cables.
To carry out voltage measurements more accurately, use the remote sense (four-
terminal) connection to connect the SENSE terminal to each end of the battery with
cables.
SENSE
OUTPUT
Hi
110V
MAX
1V
MAX
110V
MAX
Lo
Connection example for measurements
Appendix 2 Application Examples
