Endurant Crank Master Flooded battery is a type of lead-acid battery.
"Lead-acid" is the broad category that describes the battery's chemistry (using lead plates and sulfuric acid), while "Flooded" (or "Wet Cell") describes the specific way that chemistry is packaged.
While they share the same DNA, here is how the Endurant Crank Master fits into the family:
Chemistry: Like all lead-acid batteries, it uses lead plates and a liquid electrolyte.
Design: As a Flooded battery, the electrolyte (acid) is free-flowing inside the casing. This is the traditional battery design, often requiring upright installation to prevent leaks.
Technology: Many batteries in the Endurant Crank Master range use Calcium/Calcium technology. This is a modern twist on lead-acid that reduces water loss and improves vibration resistance compared to older "Antimony" lead-acid batteries.
Purpose: The "Crank Master" name indicates it is a SLI (Starting, Lighting & Ignition) battery. It is designed to deliver a massive burst of power (Cold Cranking Amps) to start an engine, rather than providing steady power over a long time (like a Deep Cycle battery).
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