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2. Water-activated battery - Wikipedia

   en.wikipedia.org/wiki/Water-activated_battery

   Another water-activated battery had been invented by Susumu Suzuki of Total System Conductor. Aluminium anodes are used on many water-activated batteries designed for use with salt water such as seawater. The HydroPak uses water-activated disposable fuel cartridges as an alternative to lead acid battery packs and portable generators.

3. Underwater cutting and welding - Wikipedia

   en.wikipedia.org/wiki/Underwater_cutting_and_welding

   [2] [3] It is a part of the marine construction industry. [4] Underwater welding may be used, and for repair work cutting of steel or concrete may be necessary. Marine salvage is the process of recovering a ship and its cargo after a shipwreck or maritime accident. Salvage may encompass towing, re-floating a vessel, or effecting repairs to a ship.

4. Marine pump - Wikipedia

   en.wikipedia.org/wiki/Marine_pump

   The fluid enters the pump impeller along or near to the rotating axis and is accelerated by the impeller, flowing radially outward into a diffuser or volute chamber (casing), from where it exits. The gear pump is a marine gear pump that uses the meshing of gears to pump fluid by displacement. It is one of the most common types of pumps for ...

5. 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 ...

6. Electric boat - Wikipedia

   en.wikipedia.org/wiki/Electric_boat

   Norway's first battery–electric ferry is MV Ampere, [22] [23] [24] with capacity for 120 cars and 12 trucks. As of November 2016 [update] , it has operated for 106,000 km. Its battery holds 1 MWh of energy, but the 9-minute charge time is sometimes not enough, and more battery capacity is to be installed.

7. Remove Banner Ads with Ad-Free AOL Mail | AOL Products

   www.aol.com/products/utilities/ad-free-mail

   SYSTEM REQUIREMENTS. Mobile and desktop browsers: Works best with the latest version of Chrome, Edge, FireFox and Safari. Windows: Windows 7 and newer Mac: MacOS X and newer Note: Ad-Free AOL Mail ...