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  2. Float voltage - Wikipedia

    en.wikipedia.org/wiki/Float_voltage

    Float voltage is the voltage at which a battery is maintained after being fully charged to maintain that capacity by compensating for self-discharge of the battery. [1] The voltage could be held constant for the entire duration of the cell's operation (such as in an automotive battery) or could be held for a particular phase of charging by the charger. [2]

  3. Sump pump - Wikipedia

    en.wikipedia.org/wiki/Sump_pump

    Water-powered ejector pumps have a separate pump, float and check valve. [4] The float controlling a backup pump is mounted in the sump pit above the normal high water mark. Under normal conditions, the main electric powered sump pump will handle all the pumping duties. When water rises higher than normal for any reason, the backup float in the ...

  4. Gallon per watt-hour - Wikipedia

    en.wikipedia.org/wiki/Gallon_per_watt-hour

    Through that "Title 20" was born. [1] Over time with the increase of pools and their complexity, the potential energy savings from residential pool pumps has become huge. [2] Residential pool pumps were first included in the 2005 Title-20 appliance standards that were adopted at the end of 2005. California has a limited ability to produce ...

  5. Float switch - Wikipedia

    en.wikipedia.org/wiki/Float_switch

    A pedestal sump pump with a float switch. A float switch is a type of level sensor, a device used to detect the level of liquid within a tank. The switch may be used to control a pump, as an indicator, an alarm, or to control other devices. One type of float switch uses a mercury switch inside a hinged float.

  6. Floating ground - Wikipedia

    en.wikipedia.org/wiki/Floating_ground

    Electrical equipment may be designed with a floating ground for one of several reasons. One is safety. For example, a low-voltage DC power supply, such as a mobile phone charger, is connected to the mains through a transformer of one type or another, and there is no direct electrical connection between the current return path on the low-voltage side and physical ground (earth).

  7. Floating battery - Wikipedia

    en.wikipedia.org/wiki/Floating_battery

    Traditional floating battery called kotta mara was used by the Banjar and Dayak against the Dutch during the Banjar war (1859–1906). The battery is made by adding walls (sloped and unsloped) to a raft made by large logs. Some of them shaped like a castle and had bastions with 4 cannons on each bastion. The kotta mara could resist the Dutch 30 ...

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