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2. Battery tester - Wikipedia

   en.wikipedia.org/wiki/Battery_tester

   Battery tester. A battery tester is an electronic device intended for testing the state of an electric battery, going from a simple device for testing the charge actually present in the cells and/or its voltage output, to a more comprehensive testing of the battery's condition, namely its capacity for accumulating charge and any possible flaws affecting the battery's performance and security.

3. List of battery sizes - Wikipedia

   en.wikipedia.org/wiki/List_of_battery_sizes

   External links. List of battery sizes. 3LR12 (4.5-volt), D, C, AA, AAA, AAAA (1.5-volt), A23 (12-volt), PP3 (9-volt), CR2032 (3-volt), and LR44 (1.5-volt) batteries (Matchstick for reference) This is a list of the sizes, shapes, and general characteristics of some common primary and secondary battery types in household, automotive and light ...

4. Battery nomenclature - Wikipedia

   en.wikipedia.org/wiki/Battery_nomenclature

   Battery numbering. IEC 60086 battery type designation system. Examples of the IEC nomenclature are batteries coded R20, 4R25X, 4LR25-2, 6F22, 6P222/162, CR17345 and LR2616J. The letters and numbers in the code indicate the number of cells, cell chemistry, shape, dimensions, the number of parallel paths in the assembled battery and any modifying ...

5. Button cell - Wikipedia

   en.wikipedia.org/wiki/Button_cell

   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. Stainless steel usually forms the bottom body and positive terminal of the cell; insulated from ...

6. List of battery types - Wikipedia

   en.wikipedia.org/wiki/List_of_battery_types

   Lithium-ion polymer battery (LiPo) Lithium–iron–phosphate battery (LFP) Lithium–nickel–manganese–cobalt oxides (NMC) Lithium–nickel–cobalt–aluminium oxides (NCA) Lithium–sulfur battery. Lithium–titanate battery (LTO) Thin-film lithium-ion battery. Lithium–ceramic battery [2][3] Rechargeable lithium–metal battery.

7. VRLA battery - Wikipedia

   en.wikipedia.org/wiki/VRLA_battery

   A 12V VRLA battery, typically used in small uninterruptible power supplies and emergency lamps. A valve regulated lead-acid (VRLA) battery, commonly known as a sealed lead-acid (SLA) battery, [1] is a type of lead-acid battery characterized by a limited amount of electrolyte ("starved" electrolyte) absorbed in a plate separator or formed into a gel; proportioning of the negative and positive ...