12V/220Ah AGM Deep Cycle Battery (M8)
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VRLA, or Valve Regulated Lead Acid, denotes sealed batteries. These batteries remain sealed, allowing gas escape solely through safety valves in cases of overcharging or cell failure. VRLA batteries are maintenance-free for their entire lifespan.
AGM, or Absorbent Glass Mat, batteries have electrolyte absorbed into a glass-fiber mat between plates via capillary action. As outlined in 'Energy Unlimited,' AGM batteries excel in delivering short bursts of high currents compared to gel batteries.
Utilizing lead calcium grids and high-purity materials, Victron VRLA batteries exhibit a low self-discharge rate—less than 2% per month at 20°C. The self-discharge rate doubles for every 10°C increase in temperature. Victron VRLA batteries can be stored for up to a year without recharging under cool conditions.
These batteries demonstrate remarkable discharge recovery, proving resilient even after deep or prolonged discharges, though repeated deep and prolonged discharges should be avoided.
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