Crown Renewable Power Flooded Lead-Acid (FLA) battery - CRP Monobloc Series. This is a 12V/115Ah (20hrs), 12V/130Ah (100hrs) battery designed specifically for tough Renewable Energy applications. Crown Renewable Energy Batteries are Heavy Weight - and that is important, "heavy" means energy dense plates that use more active material. Heavier plates that use more active lead materials are directly related to stronger battery performance and longevity. Crown leads the industry in terms of lead content per ampere-hour of rated capacity. No other renewable energy battery in the world can compete with the assured performance of Crown. No other manufacturer takes this Response Ability as seriously.