resistance when the battery is used in the inverter is determined by your existing battery amperes or ampere battery you are using and depending on the wattage load you want to back up
Example:
You have a battery 12Volt 200 Amp / hour and you want to load is 100 watts then the correct formula is a 12 Volt 200Ah X = 2400watt/hour: load 100 watts and the result is a 24-hour
And after the battery is exhausted then you need a power source to charge the battery back
The above formula applies only to state a new battery and does not apply to batteries that have been unused because the battery voltage will decrease as the battery ages
Renewable Energy
Modern Marvels: Renewable Energy