Gdetrailer wrote:
JaxDad wrote:
Gdetrailer wrote:
otrfun wrote:
OP, any chance you'll be upgrading your TV at some point? Lot of 12vdc TV's available these days. Lot more efficient vs. the same size 120vac TV being powered with an inverter.
Additionally, folks often do not realize with the TVs with an external 12V power supply that those TVs are designed for COMPUTER "12V" (11.9V-12.1V) and never were designed or intended to operate from a 12V BATTERY which can have voltages from 10.5V up to 15V..
Honestly, running a TV from a inverter is not going to kill you, not going to use a lot more of the battery and are cheap and plentiful to find and buy and you WILL get far better TV than the ones marketed as 12V..
The loss on 12 volts to 120 volts and back to 12 volts is typically about 30%.
I bought a 12 volt laptop adapter that converts 10 - 24 volts and stabilizes it to 12 volts regardless of input voltage or (within reason) draw.
The cost was $29 and the loss is well under 5%, win, win.
No, the loss is typically under 8% per conversion or about 16%.
On a TV that draws say 100W we are talking 16W of loss, 16W is roughly 1.2A at 12V and that is peanuts to be quibbling about unless you are running that TV 24/7.
1.2Ahr is nothing to get your panties in a wad about, your PC wastes much more energy than that just typing up your response.
Interesting, even the manufacturers themselves state that most inverters are at best 90% efficient, in a test of eight popular models the below article says “The eight tested inverters ranged from a low of 73% efficient to a high of 93% efficient and, as a group, had an average efficiency of about 86%.”.
Clicky, clicky.