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2. Button cell - Wikipedia

   en.wikipedia.org/wiki/Button_cell

   Button, coin, or watch cells. A button cell, watch battery, or coin battery is a small battery made of a single electrochemical cell and shaped as a squat cylinder typically 5 to 25 mm (0.197 to 0.984 in) in diameter and 1 to 6 mm (0.039 to 0.236 in) high – resembling a button.

3. AG13 battery - Wikipedia

   en.wikipedia.org/?title=AG13_battery&redirect=no

   This page was last edited on 3 April 2017, at 21:25 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...

4. List of battery sizes - Wikipedia

   en.wikipedia.org/wiki/List_of_battery_sizes

   A Battery: Eveready 742: 1.5 V: Metal tabs H: 101.6 L: 63.5 W: 63.5 Used to provide power to the filament of a vacuum tube. B Battery: Eveready 762-S: 45 V: Threa­ded posts H: 146 L: 104.8 W: 63.5 Used to supply plate voltage in vintage vacuum tube equipment. Origin of the term B+ for plate voltage power supplies.

5. Amazon's rechargeable batteries 'last just as long as ... - AOL

   www.aol.com/lifestyle/recharge-amazon-basic...

   Amazon offers five quantities: four, eight, 12, 16 and 24 batteries per pack. The larger the pack, the less the per-battery cost. The 16-pack is a sweet spot that's affordable and gives you plenty ...

6. Round of Applause for Amazon, Who Is No Longer Selling ...

   www.aol.com/round-applause-amazon-no-longer...

   In a significant step forward for fire safety in New York City, Amazon is now at least partially in compliance with new city laws banning the sale of uncertified e-bike batteries.

7. AA battery - Wikipedia

   en.wikipedia.org/wiki/AA_battery

   A Li-ion 1.5V AA-size battery, sold by the Chinese company Kentli as "Kentli PH5" since 2014 and with similar batteries later available from other suppliers is a AA-sized battery housing containing a rechargeable 3.7 V Li-ion cell with an internal buck converter at the positive terminal to reduce the output voltage to 1.5 V. [19] The Kentli ...

8. Field-replaceable unit - Wikipedia

   en.wikipedia.org/wiki/Field-replaceable_unit

   A field-replaceable unit (FRU) [1] is a printed circuit board, part, or assembly that can be quickly and easily removed from a computer or other piece of electronic equipment, and replaced by the user or a technician without having to send the entire product or system to a repair facility.

9. Modular smartphone - Wikipedia

   en.wikipedia.org/wiki/Modular_smartphone

   A modular smartphone is a smartphone designed for users to upgrade or replace components and modules without the need for resoldering or repair services. [1] The most important component is the main board, to which others such as cameras and batteries are attached. [1] Components can be obtained from open-source hardware stores. [2]