(1) source would be from a house and another source would be from a battery [and may not always be on but when on should have priority over the house's power].
EEK. DON'T TOUCH THE 220 VOLTS. It sounds like you have a 12 volt powered device. The easiest way to run a 12 dc device off the house 120 v AC and 12 v DC battery is through a battery charger to the batteries and go from there. If you are trying to run a 120v AC device, you will need the UPS mentioned above, but they can be expensive.
What you're describing is called an uninterruptible power supply, or UPS. It allows your normal house electrical to power your equipment and cuts in the batteries when the electric fails. The amout of load and size of batteries will determine how long the UPS can run from the batteries. If you are just going to power your computer, these things can be purchased from most computer stores.
Yes, its called 220v. The same thing your stove and dryer are using. be careful its deadly.
i does no longer say converted incredibly. yet certainly one of my best acquaintances and the guitarist for our band now did no longer understand plenty in any respect approximately punk or pre-punk when I met him. He became a reasonably super steel head, nonetheless is to be truthful, yet he had a confusing time appreciating issues that weren't as confusing and quickly and technical as Slayer or Megadeth or Sepaltura, yet over the years for the reason that track is an excellent part of the two our lives we uncovered one yet another to our own musical tastes. and because then he's truthfully found out that some properly placed chords or an common yet catchy progression is well worth all the skill interior the international. besides the fact that he nonetheless learn up on each and every thing and is ridiculously reliable at guitar of any variety, the track he writes himself is almost consistently a funky riff or progression and his CD series has a extremely super punk factor of it. And in tunr i've got taken a liking to a pair of his steel, besides the fact that I nonetheless won't be in a position to stand something with gruesome gruff vocals, like Sepultura or that variety of factor. I even have in spite of the indisputable fact that taken an spectacular liking to the CD Reign In Blood by Slayer, do no longer understand why.
