How long is an amp hour

I have a 12 volt 5 hour power source for my Meade 8" Goto. If there is an equation to figure this out I could probably handle it. I was a Math Major in College.

An amp-hour is not a measure of time. Given that you know the voltage level and that it is constant, the amp-hour is a measure of energy. You multiply the voltage value with the amp-hour value, and you obtain watt-hour, the same unit your electricity provider uses to measure your electricity consumption.

If you want to know how long your electronic device would last, get the power level of your device in watts, then divide it with the watt-hour level.

Hi Dave, I am still confused about what you are actually asking. 12V 5 hour power source should last for 5 hours...Did you mean 12V, 5Amp power source? If you know how many Amp-hours your power source is rated (presumably a battery), divide that by the current consumption of the Meade, gives time.

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Hi David C,

Well, batteries are typically rated in "Amp-hours" For example a 1 Amp-hour battery can deliver 1 Amp for 1 hour, or 0.5 Amp for 2 hours, or 0.25 Apm for 4 hours etc.. The Amp-hour rating is the product of the current and time.

Hope this helps