12 VOLT TV 32 INCH SERIES
12 VOLT TV 32 INCH TV

k = Peukert’s Constant ⇒ 1.1 for AGM and 1.2 for Flooded batteries in this example Example of Calculating How Long a Deep Cycle Battery Can Power a TV:.

12 VOLT TV 32 INCH TV

Amps Drawn = (watts of TV / 12-volts / 0.85 inverter efficiency factor).

20 (both) = Hours the battery was rated at.

Peukert’s Formula for calculating the time of a battery:īattery Time = 20 ((AH / (Amps Drawn * 20))^k) Just know that you’ll reduce your AH rating at a higher draw than the 20-hour rate, and you’ll increase your AH rating if you stay below it. The amount can be estimated (since these things aren’t linear) but not truly calculated unless you test each battery. If you were to use less than 5 amps, you would have more than 100 amp-hours. So, 100 amp-hour battery can provide 5 amps for 20 hours. It’s effectively lost AH capacity based on the higher load.Ĭonversely, batteries can increase their amp-hour ratings at a smaller discharge rate than was used when they were manufactured and tested.ĭeep-cycle batteries are generally rated at a 20-hour rate, or how many amps per hour can be given for 20 hours until the battery is dead. So, that 100AH battery that can give you 1 amp for 100 hours will likely only be able to give you 50 amps for 1 hour and 15 minutes until the battery is completely discharged. Peukert’s Law basically says that the higher of a draw you place on your battery, the lower the capacity of the battery will be. In my examples, I factored in this 15% inefficiency (or, 85% efficiency) factor.įinally, we need to remember Peukert’s Law if we want to get an accurate prediction about how long our deep-cycle batteries can power a TV. It just comes with the territory as the power inverter changes direct current (DC) battery power into alternating current (AC) power like from your wall outlets. When using a power inverter with a battery, you need to keep in mind that you’ll probably experience about a 15% loss of efficiency when powering your devices. Turning the volume up tends to drown out the noise. When using a modified sine wave inverter, which are about 25-50% cheaper than their pure sine wave counterparts, I do experience harmonic distortions with the TV and it will make a sound at an odd frequency even when the volume is down. That’s not to say it can’t happen, though. I have used a modified sine wave inverter when the power has been out, and haven’t experienced any damage to my devices.

When powering your delicate electronics, it is best to use a pure sine wave inverter instead of a modified sine wave inverter for cleaner and more reliable power.

You will be able to easily run modern television sets along with an accessory or two (game console, DVD player, etc.) with an inverter with 800 peak watts. What Size Inverter do I Need to Run a TV with a Deep-Cycle Battery?

12 VOLT TV 32 INCH SERIES

Finally, I’ll look at what two 6-volt GC2 golf cart batteries could do if hooked in series with a rating of 215 amp-hours.ģ. I’ll also take three 12-volt flooded batteries with 105, 90, and 65 amp-hour ratings. In the examples that we will be using, I’ll be looking at three 12-volt AGM (absorbed glass mat) batteries with 100, 80, and 55 amp-hours. Don’t worry, we’ll get to that in a minute. However, the higher the draw, the lower the AH rating. For instance, a 100AH battery should be able to give 1 amp per hour for 100 hours, or 2 amps per hour for 50 hours. Without getting complicated, the amp-hour (AH) rating gives an idea to the user about the capacity of the battery. Of course, you’ll find some deep-cycle batteries with far more and far less than the rates mentioned above. Deep-cycle batteries typically come in sizes of 100, 90, 80, 65, and 55 amp-hour ratings. They have thicker lead plates with less surface area to allow for a longer and slower discharge. The term “deep-cycle” refers to the internal design and chemistry of the battery regarding its use and not its amp-hour capacity. How many Amp Hours Does a Deep Cycle Battery Have?

In the examples that we’re going to use, I’ll be picking TV’s with watt ratings of 20, 50, and 150.Ģ. Plasma TV’s, which are also antiquated in the developed world, are energy hogs and will run 150 watts to 300 watts easily. LED TV’s will generally use about ⅔ less energy than an LCD TV of the same dimensions.ĬRT TV’s, which lost popularity in the developed world over a decade ago, will run anywhere from 65 watts to 120 watts from a 15” to a 24” screen. Trust me, once you get it, you’re going to be testing different things around your house out of curiosity! You can test your TV’s power usage with this nifty device seen here on Amazon. Larger TV’s from 32”-55” will be about 55-150 watts. Medium sized TV’s with 21”-32” screens will run about 26-70 watts. Small TV’s with 15”-20” screens in the LED and LCD categories will use about 15-26 watts.

12 volt tv 32 inch