How Long Will Deep Cycle Battery Last With Inverter. Meanwhile a 24-volt inverter system needs a batterys 10 DC Amps for every 200 watts. A 100 amp-hour AGM deep-cycle battery with a power inverter can power a large 150-watt TV for 61 hours a medium 50-watt TV for 20 hours or a small 20-watt TV for about 56 hours until the battery is fully discharged.
The value for ampere-hours varies from 50AH to 150AH. Additionally how long can I run a TV off a deep cycle battery. As a simple rule to calculate how long a 12v deep-cycle battery will last with an inverter multiply battery amp-hours Ah by 12 to find watt-hours and divide by the load watts to find run time hours.
Your batterys capacity can also be expressed by the number of amps and how many hours your battery will last.
Using the inverter calculator indicates 1435 Amps DC load and then running the sizing calculator suggests that I need battery capacity of 306 AH 20 hrs. The inverter is 93 efficient. The higher the value the more powerful the battery is. They do not have the capacity for long-term charge storage so.
