Batteries
"Sources of dc current / voltage / power."
Cell: The smallest, packed form of a battery.
Battery: Made up of 1 or more cells.
Primary Cells: Non Rechargeable.
Secondary Cells: Rechargeable.
Deep Discharge: Discharge > 80%.
Charge Capacity: Total charge expressed in mAh or Ah.
C - rates: Max. discharge current w.r.t charge capacity.
Energy Capacity: Total energy expressed in mWh or Wh.
E - rates: Max. discharge energy w.r.t energy capacity.
Life Cycle: the charge-discharge cycle.
Terminologies:
How to select batteries?
Size -> Voltage -> C- | E- rate & Capacity -> Type
Size:
Example: AA, AAA, C, D, etc
Voltage:
Example: 1.2, 1.5, 3.7, 5 etc
Type:
Example: Primary or Secondary cells.
C- | E- Rate & Capacity:
C - Rate: 1C generally.
E - Rate: 1E generally.
Current Capacity: mAh or Ah
Energy Capacity: mWh or Wh
Questions:
My battery specifications are 9V, 250 mAh, 0.5C. Find out the energy capacity, total charge stored, total energy stored, max. supply current, max. supply energy, max. time the battery can operate in its max. capacity?
Related Topics:
Batteries.