How much amp-hours do I need?
At a basic level, a 100 ah battery should give you 10 amps for 10 hours. Deep cycle batteries will have less capacity as they get older, so a battery rated at 100Ah will be reduced by 20–50% depending on how it has been used and recharged after two or three years.
How many amp-hours do I need to run a TV?
Determine the Average Daily Load
| Appliance | Amps | Amp-hours |
|---|---|---|
| radio/cassette | 0.20 | 1.20 |
| 3 lights | 5.00 | 20.00 |
| juicer | 30.00 | 5.00 |
| colour TV | 8.50 | 17.00 |
How many hours can a 100Ah battery last?
A 100 ah battery should give you (100/10=10) 10 hours of usage. If you use it for 5 mins a day, it could last 120 days.
How do you calculate amp-hours per day?
Amp-hours means amps times hours. Divide by amps and you get hours, divide by hours and you get amps. So it isn’t amps, and it isn’t amps per hour, it is amp-hours.
How long will 200 amp-hours last?
Depending on how many amps your appliances are drawing, a 200Ah battery will likely last you between two and eight hours. At 25 amps, you can expect the 200Ah battery to last eight hours. However, your RV should not draw more than eight to ten amps an hours.
How many amps does a fridge use?
Refrigerator amps are the amount of electrical current it’s compressor uses to cool it’s compartment. Amperage for most household refrigerators, is anywhere from 3 to 5 if the voltage is 120. A 15 to 20 amp dedicated circuit is required because the in-rush amperage is much higher.
How many amp hours does a laptop use?
How Many Amps Does a Laptop Computer Use? As already discussed, laptop devices are known for their low energy consumption. A typical device uses anywhere between 0.41 amp and 0.84 amp per hour, which can be just one-third to half the amount required by desktop computers.
How long will 400 amp hours last?
Batteries are designed to produce a specific voltage, and they are rated for a certain number of amp-hours. For example, a 400 amp-hour battery can supply 4 amperes of current for 100 hours.
How long will 200 amp hours last?