Why Would My Energizer Battery Last Longer Than My Duracell Battery?


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sky lee answered
You know what,
battery have two main ratings on them: Volts and Amperes. Because size
and weight of Laptop Battery is limited when compared to larger
batteries such as car batteries, most companies show their ratings with
Volts and Mill amperes. One thousand Mill amperes equals 1 Ampere. When
buying a battery, select batteries with the most Mill amperes (or Ah).
Batteries are also rated by Watt-Hours, perhaps the simplest rating of
all. This is found by multiplying the Volts and the Amperes together.
For example:

14.4 Volts, 4000mAh (Note: 4000mAh is equal to 4.0 Amperes).

14.4 x 4.0 = 57.60 Watt-Hours

Watt-Hours signifies the energy needed to power one watt for one hour.
This Laptop Battery can power 57.60 watts for one hour. If your laptop
runs at 20.50 watts, as an example, this Laptop Battery could power
your laptop for 2.8 hours.

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