How To Calculate Battery Mah. 07 Battery Cycle life considerations Run Time Note. This is usually stated on the battery itself see Image 1.
The energy E Wh in watt-hours is equal to the electric charge Q mAh in milliamp-hours times the voltage V V in volts V divided by 1000. MAh Battery Life Calculator is an online tool used in electrical engineering to precisely calculate battery life. For example a 1C battery needs one hour at 100 A to load 100 Ah.
An 111 volt 4400 mAh battery first divide the mAh.
A unit to measure the current flow is called as the ampere also termed as amp. The capacity in mAh is the current times the number o. This online calculator is used to find the power consumption from the battery capacity in mAh and estimated hours. You can get an approximate answer by just measuring the average current with a multimeter.
