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2. Comparison of commercial battery types - Wikipedia

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

   This is a list of commercially-available battery types summarizing some of their characteristics for ready comparison. ... Specific power ... Weight NiCd: 1.2V: 20% ...

3. Lithium iron phosphate battery - Wikipedia

   en.wikipedia.org/wiki/Lithium_iron_phosphate_battery

   The energy density (energy/volume) of a new LFP battery as of 2008 was some 14% lower than that of a new LiCoO 2 battery. [46] Since discharge rate is a percentage of battery capacity, a higher rate can be achieved by using a larger battery (more ampere hours) if low-current batteries must be used.

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. Battery Directive - Wikipedia

   en.wikipedia.org/wiki/Battery_Directive

   The 1991 battery Directive's "Article 3; MI; Annex I" stated the prohibition (with exceptions) of marketing: Batteries on the market after 18 September 1992 with: 1.A. more than 25 mg of mercury per cell, except alkaline manganese batteries; 1.B. more than 0.025% cadmium by weight; 1.C. more than 0.4% lead by weight

6. Battery nomenclature - Wikipedia

   en.wikipedia.org/wiki/Battery_nomenclature

   A zinc-carbon lantern battery, consisting of 4 round "size 25" cells in series. Terminated with spring terminals. 4LR25-2: 4: L: R: 25: 2: An alkaline lantern battery, consisting of 2 parallel strings of 4 round "size 25" cells in series 6F22: 6: F: 22: A zinc-carbon rectangular battery, consisting of 6 flat "size 22" cells. Equivalent to a PP3 ...

7. Lead–acid battery - Wikipedia

   en.wikipedia.org/wiki/Lead–acid_battery

   The sum of the molecular masses of the reactants is 642.6 g/mole, so theoretically a cell can produce two faradays of charge (192,971 coulombs) from 642.6 g of reactants, or 83.4 ampere-hours per kilogram for a 2-volt cell (or 13.9 ampere-hours per kilogram for a 12-volt battery).