Correct Answer - Option 3 : milli ampere hours
Battery Rating:
- The most important in understanding the battery specifications are current and capacity.
- Current is the strength of the electricity discharged by a battery underuse, and it is measured in amperes, commonly referred to as amps.
- However, the battery’s rating is based on its capacity, which is measured in milli-amp-hours (mAh).
- The rated capacity of any battery expresses the average amount of current it releases over a period of time under normal use.
- This means that a battery with a rating of 200 mAh can deliver 200 milli-amps of power at a constant rate for 1 hour.
Other Battery Specifications
In addition to current and capacity, batteries have several other specifications, including the following:
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Energy capacity – The energy capacity of a battery is measured in watt-hours (Wh), and it is calculated by multiplying the watts discharged by the number of hours.
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Cycle life – The cycle life of a battery is the number of times it can be fully charged and discharged before its performance slows or fails. The actual time a battery will last depends upon the depth and rate of the cycles.
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Charge voltage – The voltage of a battery when it is charged to full capacity is its charge voltage.
