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2. The best portable projector I've ever used is down to a ... - AOL

   www.aol.com/lifestyle/best-portable-projector...

   Elfin audio is mixed: The projector squeezes a lot from its dual 3-watt Harman Kardon speakers, which can get pretty loud. But they're physically small, with little bass to speak of, so the sound ...

3. Handheld projector - Wikipedia

   en.wikipedia.org/wiki/Handheld_projector

   Handheld projectors, in particular projector phones, could offer new possibilities for mobile gaming, as demonstrated by the adaptation of the PlayStation 3 game LittleBigPlanet. Players can sketch a world on a sheet of paper or use an existing physical configuration of objects and let the physics engine simulate physical procedures in this ...

4. Amazon’s Portable Projector With 25,000 Reviews Is Marked ...

   www.aol.com/amazon-portable-projector-25-000...

   This portable projector features an HDMI, VGA, AV, and USB output, so you can connect it to your phone, USB drive, gaming console and more. It stores easily thanks to its small size and it comes ...

5. Backup battery - Wikipedia

   en.wikipedia.org/wiki/Backup_battery

   A valve-regulated lead-acid battery is a battery type that is popular in telecommunications network environments as a reliable backup power source. VRLA batteries are used in the outside plant at locations such as Controlled Environmental Vaults (CEVs), Electronic Equipment Enclosures (EEEs), and huts, and in uncontrolled structures such as ...

6. Maxell - Wikipedia

   en.wikipedia.org/wiki/Maxell

   Maxell was formed in 1960, when a dry cell manufacturing plant was created at the company's headquarters in Ibaraki, Osaka.In 1961, Maxell Electric Industrial Company, Limited was created out of the dry battery and magnetic tape divisions of Nitto Electric Industrial Company, Limited (now Nitto Denko Corporation).

7. Uninterruptible power supply - Wikipedia

   en.wikipedia.org/wiki/Uninterruptible_power_supply

   The offline/standby UPS offers only the most basic features, providing surge protection and battery backup. The protected equipment is normally connected directly to incoming utility power. When the incoming voltage falls below or rises above a predetermined level the UPS turns on its internal DC-AC inverter circuitry, which is powered from an ...