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  2. Mobile phone accessories - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_accessories

    Calendered vinyl is expected to only be used for short-mid duration (10 years), while cast vinyl is used on a more long-term basis. Calendered vinyl also tends to shrink in the heat and can be shaped into any form (above 80 degrees Celsius), and may fade in direct sunlight. Customized phone cases use custom printing.

  3. Battery holder - Wikipedia

    en.wikipedia.org/wiki/Battery_holder

    Battery holders for zinc-air batteries must not be completely air-tight since approximately 1 litre of air is required per ampere-hour of discharge per cell. The battery holder may include a valve integrated with the device power switch to allow air to be admitted when the device is switched on. [5]

  4. Aluminium–air battery - Wikipedia

    en.wikipedia.org/wiki/Aluminium–air_battery

    The specific voltage of the cell can vary depending upon the composition of the electrolyte as well as the structure and materials of the cathode. Other metals can be used in a similar way, such as lithium-air, zinc-air, manganese-air, and sodium-air, some with a higher energy density. However, aluminium is attractive as the most stable metal.

  5. Right to repair - Wikipedia

    en.wikipedia.org/wiki/Right_to_repair

    The FTC specifically identified that informing consumers that warranties are voided if they break a warranty sticker or seal on the unit's packaging, use third-party replacement parts, or use third-party repair services is a deceptive practice, as these terms are only valid if the manufacturer provides free warranty service or replacement parts ...

  6. Lithium–air battery - Wikipedia

    en.wikipedia.org/wiki/Lithium–air_battery

    In practice, Li–air batteries with a specific energy of ~6.12 MJ/kg = 1.7 kWh/kg of lithium at the cell level have been demonstrated. This is about 5 times greater than that of a commercial lithium-ion battery , and is sufficient to run a 2,000 kg electric vehicle for ~500 km (310 miles) on a single charge using 60 kg of lithium (i.e. 20.4 ...

  7. Zinc–air battery - Wikipedia

    en.wikipedia.org/wiki/Zinc–air_battery

    The term zinc–air fuel cell usually refers to a zinc–air battery in which zinc metal is added and zinc oxide is removed continuously. Zinc electrolyte paste or pellets are pushed into a chamber, and waste zinc oxide is pumped into a waste tank or bladder inside the fuel tank. Fresh zinc paste or pellets are taken from the fuel tank.

  8. Air cell - Wikipedia

    en.wikipedia.org/wiki/Air_cell

    Air cell or aircel may refer to: Air cell, a prechamber in an Indirect injection internal combustion engine; An electrochemical cell that uses air as a terminal, such as the metal-air electrochemical cell; Using cell phones on aircraft; see mobile phones on aircraft; Mastoid cells, also known as mastoid air cells or air cells, spaces in a bone ...

  9. Glossary of HVAC terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_HVAC_terms

    A transfer of fluid volume per unit time. fresh air fan Abbreviated FAF. fresh air fraction Fresh air fraction quantifies action of the economizer, and is defined by (Mass flow rate of fresh-air / Total air flow rate). Abbreviated faf. fresh air intake An opening through which outside air is drawn into the building.