Patent ID: 8474794

Claim:
A lift control system for operating a lifting device comprising a lift actuator coupled to a lift arm, the lift control system comprising: a control unit comprising a processor with a memory communicatively coupled to the processor and having computer readable and executable instructions; a battery electrically coupled to the control unit; at least one indicator electrically coupled to the control unit, wherein the processor executes the computer readable and executable instructions to: determine an accumulated number of initiated battery charging events; determine an accumulated number of incomplete battery charging events; determine an accumulated number of battery replacements; determine at least one operating characteristic of the lifting device and an operating time of the lifting device as the lifting device is actuated; determine an accumulated load-time parameter for the lifting device based on the at least one operating characteristic and the operating time; store the accumulated load-time parameter in the memory of the lift control system; compare the accumulated load-time parameter to a service constant; and provide an indication with the at least one indicator that a lift structural component requires service based on the comparison of the accumulated load-time parameter to the service constant.