Woot.com has deals on two different models of power inverters.
The deals end on 29 January @ 09:00.
--ryan
Sent from my Apple Mac mini
On Sun, Jan 13, 2013 at 3:01 PM, petefromflorida <petefromflorida@gmail.com> wrote:
The important thing is the watts. The charger that came with my iPad only requires 10 watts. The inverter has enough power to charge a dozen iPads at the same time.
> >> It's an inverter that plugs into a 12 volt system. It has a 20 amp fuse on it. Please tell me why a manufacturer would put a 20 amp fuse on it if it wasn't needed?> Jim Saklad mailto:jimdoc@...
> >> Pete
> >
> > In that case the message indicating that it was 140 watts would have been in error. I was simply going on what had been presented in the message.
> >
> > But if it inverts the power to 120volt output, then a 20amp fuse would indicate 2400 watts, which was not what was indicated.
> >
> > And even multiplying the 12 volt input by the 20 amp fuse would give 240 watts, while the message indicated that the output was rated for 120v, 140watts. So you get to explain to us why there is a 140watt output rating, given the input voltage and the 20amp fuse. :-)
> > David H. Bailey
>
> The 12-volt DC outlet in the car has a 20 amp fuse. The "appliance" you choose to connect at that outlet is a 120-volt AC inverter.
>
> The inverter is rated at 140 watts. At 120 volts, that's about 1.17 amps AC that the
> inverter can supply to AC appliances plugged into it.
>
> The power the inverter draws from the car is probably greater than 140 watts DC (since there is always some losses in the system).
>
> If the "140 watt" inverter draws 152 watts from the DC circuit, then it draws about 13 amps DC, from the car.
>
> Okay?
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
__._,_.___
| Reply via web post | Reply to sender | Reply to group | Start a New Topic | Messages in this topic (26) |
.
__,_._,___