How long your energy storage will last, is determined by two components. How big is your energy demand or load - how many appliances are running at the same time and what size batteries you choose. The storage capacity of the batteries is determined by the size of the battery bank. The running time of a battery is calculated on 1 x 3.5kWh/4.8kWh Lithium battery, discharged from 100% to 20%. To extend the storage capacity, additional 3.5kWh/4.8kWh batteries can be added to increase your back-up time.
Here are some estimated running times vs loads for one 3.5 kWh battery - the W element indicates the load capacity.
2000W = 1.4-Hours
1000W = 2.9-Hours
800W = 3.6-Hours
600W = 4.8-Hours
400W = 7.1-Hours
200W = 14.3-Hours
