|100mah to watt hours||0.79||0.7||1031||44|
Amp hours are calculated by multiplying the amp output of a battery by an amount of time. While this may seem simple, it is important to know that the amp output could be measured over five hours, 20 hours etc.How do you calculate battery run time?
The Formula to Calculate Battery Run Time. We will assume 100% efficiency between the battery and the appliance for purposes of this discussion. Although in practice, this seldom is the case. We use the formula: (10 x battery capacity in amp hours) divided by (appliance load in watts).How many watts are in an hour?
One Watt hour is equal to one Watt of average power flow over an hour. One Watt over four hours would be four Watt Hours of power. As an example, a 100 Watt light bulb on a 400 Watt Hour battery (like the Yeti 400) would last, on paper, 4 hours. A Watt, the measure of power, is usually calculated using this equation: Watts = Volts x Amps.