In this section:
Introduction .............................................................................. 8-1
Equipment required .................................................................. 8-3
Device connections .................................................................. 8-3
Automated battery charge and discharge cycle testing ............ 8-5
Introduction
This example application demonstrates how to use a single Model 2450 to perform automated battery
discharge and charge cycle testing.
To prevent personal injury or damage to the Model 2450, do not attempt to charge
nonrechargeable batteries. Some of the batteries that can be charged with a Model 2450
are nickel cadmium (Ni-Cd), nickel metal hydride (Ni-MH), lithium ion (Li-ion), rechargeable
alkaline, and lead acid. If you are working with a battery type that is not listed here, please
contact your local Keithley representative or call one of our Applications Engineers to get
technical assistance.
Always follow the battery manufacturer's requirements for charging or discharging
batteries using a Model 2450. Failure to properly charge or discharge batteries may cause
them to leak or explode, resulting in personal injury and property damage. Overvoltage and
current protection should be provided in the charge circuit, external to the instrument,
when charging batteries without built-in protection.
Do not charge or discharge batteries that exceed 21 V at 1.05 A or 210 V at 105 mA.
For both the charging and discharging cycles, the Model 2450 is configured to source voltage and
measure current. A simplified circuit diagram showing both the charge and discharge cycles is shown
in the following figure.
Section 8
Rechargeable battery measurements
