1 You must indicate that you have completed a Federal tax return to be eligible to use the IRS DRT.  If you have questions about the FSA ID, you can find the answers to frequently asked questions here. If you need assistance logging in with your FSA ID, contact us at 1-800-4-FED-AID (1-800-433-3243).
Battery. A battery is a hardware component that supplies power to a device, enabling that device to work without a power cord. Batteries are often capable of powering a laptop computer for several hours depending on how much power it requires.ou are here: Dictionary B-Definitions. A battery is a hardware component that supplies power to a device, enabling that device to work without a power cord.
To answer this question, it's important to understand how batteries work. A battery is a device that stores electrical energy and can then deliver that energy through an easily controlled electro-chemical reaction. A schematic of a lithium-ion cell. Reprinted courtesy of HowStuffWorks.com.