12V 90AH Leoch AGM Lead Carbon Deep Cycle BatterySuitable replacement battery for Intelligent Cleaning Equipment i15B What Makes Lead Carbon AGM Superior to other AGMs? Positive Plate This paste formula used is designed to minimise water consumption providing a longer service life at 1300 cycles at 50% DoD. Designed for deep cycle performance. Negative Plate A unique mixture of carbon and other key additives found in negative material allow the LDC range to perform in partial state of Charge (PSoC).