or put another way, “How many amps am I taking out of my batteries per hour?”
We hear this question every single day and the answer is quite simple. To determine how many Amps you are taking out of you batteries per hour, as a general rule of thumb, take the AC Amps (amps of the devices plugged into the inverter) and multiply by 10. For example, 5A of fluorescent lights = 50 DC Amps. You are taking 50A out of your batteries per hour if those lights are turned on for the full hour.
Sidebar: If you are running a 4A fridge for example, using the above formula you will not be drawing 40A DC an hour. The fridge will cycle on and off many times during the course of an hour so you’ll be drawing LESS than the 40A DC.
