how does an mAh work? How long will 1 mAh last on a smartphone? How long will 18000 last?
In: Technology
think of it as a gallon of gas, and the battery is the tank. A battery and a gas tank store energy, just in different forms. But because you can’t store electricity as a volume of something cause it’s not tangible, we rate a battery off of the amount of energy can provide. mA is a measure of electrical current (conceptually very similar to a water current) which when multiplied by a unit of time and a voltage, will give you a “block” of energy, much like a water flow rate over an hour will give you some number of gallons of water.
Because pretty much all cellphones run at 3.3 volts, battery calculations disregard this and basically just calculate how long a battery can supply some current.
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