Question: 1 ampere is equal to how many joules?
Answer: 1mAh = 0.001 Amps x 3600 seconds = 3.6 Coulombs of charge. Choosing 1 Volts for the voltage, we can now convert mAh to Joules. We say at 1 Volts, 1mAh of charge equals 3.6 Joules of energy. This is a handy value for mAh to Joule conversions.