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dry camping with Tailgater/power consumption
Posted 20 December 2012 - 09:47 AM
We do a fair amount of dry camping (at least 6 weeks per year) I have a 400 watt inverter, will that power a small LCD TV and the receiver and Tailgater for __________What kind of time?? I have two 6 volt golf cart batteries that are nearly new. Just looking for a best guess and not expecting anything cast in stone. We run a generator for an hour or two as needed daily.
Thanks for any replys.
Posted 20 December 2012 - 10:59 AM
I am not as familiar with inverters, but they should actually be better suited than some generators for electronics, much less likely to damage them. (Generators for electronics actually do make use of inverting)
Posted 20 December 2012 - 12:24 PM
We have a 19" Dynex DX-19L200 LCD TV (rated @ 29w--it took some searching to find one that efficient) and use a 211k and a Dish500. Everything connected to a std 12v deep cycle battery (you may do better with your dual 6v batteries). I have a 150w inverter and normally get anywhere from 6 to 8 hrs viewing between battery charges (depends on how well I get the btry charged)
BTW-I carry the battery separate from my onboard systems and use it only to power the tv & dish receiver. I also carry a small generator and when the btry needs charging will connect the geny to the trailer and will connect the battery direct to the generator with the 12v charging cable that came with it.
I can often go 2 to 3 days between needing to run the generator with this setup (and we dry camp a lot).
edit-just occurred to me to add--when not watching tv, I completely power off the system (from my experience the receiver appears to consume about the same amount of electricity in standby mode as it does when watching tv). This means that when I power back up I have to go thru the 'acquiring signal' and download schedule processes. A PITA, but it extends the length of time between charge ups
Edited by CeeWoo, 20 December 2012 - 12:43 PM.
Posted 20 December 2012 - 04:22 PM
Found this in the inverter manual.
Calculate the total watt-hours of energy consumption
(power x operating time) using the average power
consumption and the total estimated running time
(in hours). Power x Operating Time = Watt-Hours.
4. Divide the watt-hours by 10 to determine how many
power supply’s (12 volt) ampere-hours will be consumed.
So if combined the TV, 211K and Inverter draw 60 watts, divided by 10=6 amp hours per hour of use. If that is the case and my two batteries provide 240 minute amp hours at 25 amps I think I should be able to run for several hours without running out of power.
The inverter will shut down when battery reaches 9.5 volts.
If I am on the wrong track someone please correct me. I know the simplest thing would be to turn it on and let it go and see what happens. Actually I ordered the package and it won't be in my hands till Dec. 27th and we leave on the 30th for two plus weeks of dry camping in southern Arizona. That is why I am trying to problem solve in advance!
Posted 20 December 2012 - 05:06 PM