Hydraulic accumulator charging and gauging kits help ensure that accumulators are correctly charged. All hydraulic accumulators require charging before first use and need to be monitored and recharged as needed over the life of the accumulator. Hydraulic accumulators store pressurized hydraulic fluid and release it as needed to maintain steady pump flow and pressure, dampen vibrations and shocks, and compensate for leaks or thermal expansion in the system. They can also accommodate for lost pressure if the system's pump fails or there is fluid loss in the system.