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  2. I tried this battery-powered backup generator — it's great ...

    www.aol.com/lifestyle/tried-battery-powered...

    The AC200P is one big battery, measuring 16.5 by 11 by 15.2 inches. It's compact enough to store away in, say, a closet until needed, but the real issue is weight: It's 60 pounds.

  3. Rechargeable battery - Wikipedia

    en.wikipedia.org/wiki/Rechargeable_battery

    The energy used to charge rechargeable batteries usually comes from a battery charger using AC mains electricity, although some are equipped to use a vehicle's 12-volt DC power outlet. The voltage of the source must be higher than that of the battery to force current to flow into it, but not too much higher or the battery may be damaged.

  4. Uninterruptible power supply - Wikipedia

    en.wikipedia.org/wiki/Uninterruptible_power_supply

    The main 50/60 Hz transformer used to convert between line voltage and battery voltage needs to provide two slightly different turns ratios: One to convert the battery output voltage (typically a multiple of 12 V) to line voltage, and a second one to convert the line voltage to a slightly higher battery charging voltage (such as a multiple of ...

  5. 55 Cool Tech Gadgets Our Gear Editors Loved Testing This Year

    www.aol.com/lifestyle/40-wildly-innovative-tech...

    Nanopresso Portable Espresso Maker Bundle. ... Volt 12 Electric Pizza Oven. ... or survival bunker going indefinitely with Bluetti’s beefy solar generator. Add another battery to double the ...

  6. History of the battery - Wikipedia

    en.wikipedia.org/wiki/History_of_the_battery

    The lead-acid battery is still used today in automobiles and other applications where weight is not a big factor. The basic principle has not changed since 1859. In the early 1930s, a gel electrolyte (instead of a liquid) produced by adding silica to a charged cell was used in the LT battery of portable vacuum-tube radios.

  7. 10 Home Depot Items East Coast Retirees Should Stock Up On ...

    www.aol.com/10-home-depot-items-east-160112713.html

    Keep warm against the ruthless chill with this Men’s black 7.2-volt lithium-ion ... watt/3,250-watt propane gas powered recoil start portable generator priced at $341.51. It’s the priciest ...

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