Boat Batteries 101: AGM, Lithium-Ion, Lead-Acid, and Gel Explained! | Foothills Marine
Gel cell batteries have many similar traits to AGM batteries, including non-spill-ability, deep-cycle, multi-angle mounting, low self-discharge, maintenance-free, and are sealed. Gel batteries are also sensitive to correct charging, or else the battery will prematurely become inoperable.