Patent ID: 8536834

Claim:
A mobile environment-controlled unit comprising: a structure; a compartment supported by the structure; an environmental-control system in environmental communication with the compartment, the environmental-control system being configured to control an environmental parameter of the compartment, the environmental-control system including an internal combustion engine, including a starter, powering the environmental-control system; a battery powering the starter; and a controller monitoring an electrical parameter of the battery, monitoring a non-battery parameter of the mobile environment-controlled unit, controlling the engine in a cycle mode, including starting the engine based on the monitoring of the electrical parameter of the battery, stopping the engine based on the monitoring of the electrical parameter of the battery, starting the engine based on the monitoring of the non-battery parameter, and stopping the engine based on the monitoring of the non battery parameter, and monitoring a battery health status, including counting a number of successive times the engine starts based on the monitoring of the electrical parameter of the battery without starting the engine based on the monitoring of the non-battery parameter, the counting being further based on monitoring a timer between either the stopping of the engine based on the monitoring of the electrical parameter of the battery or the stopping the engine based on the monitoring of the non battery parameter and the starting the engine based on the monitoring of the electrical parameter of the battery.