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2. These Cheap Cell Phones Don’t Cut Corners — And Cost Less ...

   www.aol.com/8-best-cheap-phones-browse-200000002...

   Galaxy A54 Affordable Cell Phone. The mid-range Galaxy A54 houses some impressive specs, but your head will turn at the gorgeously bright, 6.4-inch Super AMOLED display running at 120 Hertz for a ...

3. List of NFC-enabled mobile devices - Wikipedia

   en.wikipedia.org/wiki/List_of_NFC-enabled_mobile...

   Retrieved 16 February 2017. ^ Galaxy S IV Mini (Variant) SCH-I435, Samsung, 14 June 2014. ^ Galaxy S IV Mini (Variant) SM-S890L(PDF), Samsung, 14 June 2014. ^ Turkcell T40 Aygün, Turkcell. ^ Vodafone Smart III, Vodafone, archived from the original on 30 June 2013, retrieved 27 June 2013. ^ "NXP Deploys NFC in Nexus 7".

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. Lead-acid battery - Wikipedia

   en.wikipedia.org/wiki/Lead-acid_battery

   The lead-acid battery is a type of rechargeable battery first invented in 1859 by French physicist Gaston Planté. It is the first type of rechargeable battery ever created. Compared to modern rechargeable batteries, lead-acid batteries have relatively low energy density. Despite this, they are able to supply high surge currents.

6. Comparison of commercial battery types - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_commercial...

   Under certain conditions, some battery chemistries are at risk of thermal runaway, leading to cell rupture or combustion.As thermal runaway is determined not only by cell chemistry but also cell size, cell design and charge, only the worst-case values are reflected here.

7. Smartphone - Wikipedia

   en.wikipedia.org/wiki/Smartphone

   The "Sooner" prototype Android smartphone. A smartphone, often simply called a phone, is a mobile device that combines the functionality of a traditional mobile phone with advanced computing capabilities. It typically has a touchscreen interface, allowing users to access a wide range of applications and services, such as web browsing, email ...