Table of Contents
How many amp hours do I need for solar?
By the rule of thumb, a 100 watt solar panel inputs 30 amp-hours per day into your batteries. So you would need 1.33 100 watt panels, or one 133 watt panel to match your solar power needs.
How many amp hour battery do I need?
The key is to use the watts you know to calculate the amps at the battery voltage . For example, say you want to run a 250 watt 110VAC light bulb from an inverter for 5 hours. Amp-hours (at 12 volts) = watt-hours / 12 volts = 1470 / 12 = 122.5 amp-hours.
How do you convert watt hours to amp-hours?
1 amp hour is defined as 1 amp of current expended for 1 hour. How do you convert watt-hours to amp-hours? For the watt-hour to amp-hour conversion, you also need voltage (V)….Watt-Hours To Amp-Hours Conversion Chart.
Watt-Hours (Wh) | Amp-Hours (at 120V): | Amp-Hours (at 220V): |
---|---|---|
1 amp hour to watt hours: | 0.008 Ah | 0.005 Ah |
How many amps does a 100W solar panel produce?
A 100 watt panel produces an average of about 6 amps per peak sun hour, or about 30 amp-hours per day. Given the above example, you would need three 100 watt solar panels to fully recharge on the average day (80 / 30 ≈ 3).
How many amps does a 12 volt light bulb use?
An incandescent 12-volt ceiling light bulb has a draw of 1.5 amps. If you leave the light on (burning) for one hour it will consume 1.5 amp hours of battery power. If you burn it for 2 hours it will consume 3 amp hours of battery power, etc.
How many batteries do I need to run a 17W light?
Running (9) 17W lights 120 V AC using an inverter powered by two 105 Amp-hr deep cycle AGM batteries in parallel. Average run cycle is 10 hours. Using the inverter calculator, indicates ~14.35 Amps DC load and then running the sizing calculator suggests that I need battery capacity of 306 AH 20 hrs.
How much battery power does a light burn consume?
If you leave the light on (burning) for one hour it will consume 1.5 amp hours of battery power. If you burn it for 2 hours it will consume 3 amp hours of battery power, etc.
What size battery do I need to run my application?
If you know how much power your application takes to run, and the time you would like to run it, we’ll recommend a 12 volt battery with a safe amount of AH (Amp Hours) that will give you the runtime you need.