Monitors and peripherals should also be considered. Typical battery life is 2 years but can vary as a result of conditions. Acme's warranty covers battery life for 24 months. All computer equipment has a VA rating. The VA rating is the maximum power load which the internal power supply is designed to deliver.
Wattage refers to the average power load.
To convert from watts to VA rating, multiply the wattage by 1.4. A. Make a list of the equipment you want to protect. Each device has an amperage requirement. Some devices may list their power requirements in watts. To convert to VA, multiply watts by 1.4.