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2. Deep-cycle battery - Wikipedia

   en.wikipedia.org/wiki/Deep-cycle_battery

   A deep-cycle battery powering a traffic signal. A deep-cycle battery is a battery designed to be regularly deeply discharged using most of its capacity. The term is traditionally mainly used for lead–acid batteries in the same form factor as automotive batteries; and contrasted with starter or cranking automotive batteries designed to deliver only a small part of their capacity in a short ...

3. 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 ...

4. Lead–acid battery - Wikipedia

   en.wikipedia.org/wiki/Lead–acid_battery

   During the 1970s, researchers developed the sealed version or gel battery, which mixes a silica gelling agent into the electrolyte (silica-gel-based lead–acid batteries used in portable radios from the early 1930s were not fully sealed). This converts the formerly liquid interior of the cells into a semi-stiff paste, providing many of the ...

5. Depth of discharge - Wikipedia

   en.wikipedia.org/wiki/Depth_of_discharge

   Depth of discharge (DoD) is an important parameter appearing in the context of rechargeable battery operation. Two non-identical definitions can be found in commercial and scientific sources. The depth of discharge is defined as: the maximum fraction of a battery's capacity (given in Ah) which is removed from the charged battery on a regular basis.

6. Automotive battery - Wikipedia

   en.wikipedia.org/wiki/Automotive_battery

   A typical 12 V, 40 Ah lead-acid car battery. An automotive battery, or car battery, is a rechargeable battery that is used to start a motor vehicle.. Its main purpose is to provide an electric current to the electric-powered starting motor, which in turn starts the chemically-powered internal combustion engine that actually propels the vehicle.

7. DieHard (brand) - Wikipedia

   en.wikipedia.org/wiki/DieHard_(brand)

   DieHard is an American brand of automotive battery and parts owned by Advance Auto Parts and sold exclusively at Advance, Carquest and Sears stores. Advance bought the DieHard brand from Sears in December 2019. [1] The brand dates to 1967, having been developed by Globe-Union Battery for Sears.