The nominal total energy in Your battery is: 12 V * 200Ah = 2400 Wh So in consequence the maximum time to run this motor with full power is: 2.4 kWh / 3 kW = 0.8 h = 48 minutes. Runtime with 50% Safe Discharge Level - The last field tells you approximately how long your battery will last under the given load and circumstances. 2) Battery Type. Ok. 200AH @12Vdc = 2400 WattHours and that is for a Brand New Battery being discharged to Totally FLAT, which will KILL that Battery, DEAD, in just a few Cycles. Let’s find out how long a 100AH AGM battery can power a 150 watt TV below. for a given capacity C and a discharge current I, the time will be, However, battery capacity decreases as the rate of discharge increases. Or if delivering 10A, it would last for only 1 hour, or if delivering 5A, it would last … 12 * 200 = 2400 Watt-hours, so theoretically it could last 2.4 hours. Battery capacity is a measure (typically in Amp-hr) of the charge stored by a battery. 150 watt TV / 12-volts = 12.5 amps. Then find out wattage of the panels required ( voltage x current ). and a 4.5 to 5KW Inverter, How long can the system power all appliances during the day or during the night? Hi all I want to install a solar power system for my office that consumes 4,000 Watts. So you need 1200 / 250 = 4.8 hours of bright sunlight. This place receives at least 10 Hours of day light it is on the equator. Petrol left in a fuel tank would show up as a … While the volts is indicative of how much power is left, it is not like a fuel gauge. If you use 2A supply, it’ll take only 100hrs. In practice when you discharge a lead-acid battery at a high rate (in this case Capacity / 2.4 -- which is a high rate), you don't get all that energy. Under a 15 amp load, our 100 AH Battery should be discharged no more than 6 hours and 9 minutes. (Up to maximum current that your battery can handle) So by fixing your desired charging time, you can determine the current. Subsequently, question is, how long will a 200ah battery last? Kindly shed light on my query. And so on. In the commuter car example we referenced, if a flooded battery lasts three to five years, an AGM battery could last six to ten years or longer. The 200AH battery can feed 200 Amps for 1 hour, or 100 Amps for 2 hours, or 10 amp for 20 hours. FREE SHIPPING! Throw away how long will a battery last calculator, and l et’s see an actual case, 10 Ah battery delivering 1A, would last 10 hours. I want to install 4 X 64 W panels , 250AH Batteries. Wet Cell, Gel or AGM can give different voltage readings for percentage of charge left. As can be seen in Figure 1 the battery type e.g. Deep Cycle AGM Battery 12 Volt 200Ah. Secondly, how many solar panels does it take to charge a 100ah battery? Never be without power agian. Exclusions may apply See Details. For the 48V system, is the amp hrs calculated as 800AH (4*200ah) or is it still only 200AH since it is connected as a 48V? You may think that calculating how long a battery will last at a given rate of discharge is as simple as amp-hours: e.g. Renogy's 12v AGM Battery will keep you going for as long as you need. We can generally say an AGM battery can last two to three times as long as a flooded battery. If i have a 12V inverter system, using a 1* 200AH battery and a 48V inverter system which requires 4*200AH battery to get the system to perform. A single solar panel of 280 watts will do the work for you. (watts = amps x volts) 12.5 amps / 0.85 efficiency of inverter = 14.7 amps needed from the battery to overcome the 15% loss of the inverter and still provide 12.5 amps to the TV. For a 200ah battery, if you are giving 1A(Ampere) supply, it’ll take 200hours to fully charge. A 15 amp load, our 100 AH battery should be discharged no more 6... 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