Battery charge/discharge

Rechargeable Battery Charge/Discharge
(Galvanic) Cycling Using the Keithley Model 2450
or Model 2460 SourceMeter® SMU Instrument


Rechargeable, or secondary, batteries are commonly used in place of disposable batteries in electronic devices such as laptops, video game controllers, mobile phones, digital cameras, and remote controls. In an effort to improve upon or replace existing battery technologies, researchers are studying ways to increase battery life and, at the same time, decrease the cost of rechargeable batteries. Common types of rechargeable batteries include Li-ion (Lithium Ion), Ni-MH (Nickel Metal Hydride), and NiCd (Nickel Cadmium). The characteristics of a rechargeable battery are commonly tested using discharge and charge cycling. Cycle tests provide information about the battery such as its internal chemistry, capacity, number of usable cycles, and lifetime. In production testing, a discharge/charge cycle is often performed to verify battery specifications and to ensure it is not defective.