How Long Will 45 Battery Last. This calculator will tell you how long your battery will run. For a given capacity C and a discharge current I the time will be However battery capacity decreases as the rate of discharge increases.
A laptop can last anywhere from five to four hours depending on the model and the applications it is running. So if a 5 Volt battery has 20 Watt Hour rating and it draws 2 Amp current then the Watt delivered by Battery 10 Watts 5 Volts x 2 Ampere. For a given capacity C and a discharge current I the time will be However battery capacity decreases as the rate of discharge increases.
A MacBook Pro battery will last 5 years on average with moderate use before replacement is needed.
This calculator will tell you what battery size you need. If you dont know the Watts or Watt-Hours use the formulas below. A laptop can last anywhere from five to four hours depending on the model and the applications it is running. For a given capacity C and a discharge current I the time will be However battery capacity decreases as the rate of discharge increases.
