BACKGROUND

The present application generally relates to lift devices. More particularly, the present application relates to mobile elevated work platforms.

SUMMARY

One implementation of the present disclosure is a lift device, according to an exemplary embodiment. The lift device includes a base assembly, a turntable assembly, a lift apparatus, and a controller. The base assembly includes a chassis, multiple tractive elements rotatably coupled to the chassis, and multiple base assembly batteries. The base assembly batteries are configured to store and provide electrical energy for electrical components of the base assembly. The turntable assembly is rotatably coupled with the base assembly through a slip ring transmission. The turntable assembly includes multiple turntable batteries. The lift apparatus is coupled with the slip ring transmission and configured to raise or lower an implement assembly. The one or more electrical components of the lift apparatus are configured to consume electrical energy provided by the turntable batteries to raise or lower the implement assembly. The controller is configured to operate the base assembly batteries to charge the turntable batteries through the slip ring transmission.

Another implementation of the present disclosure is a battery system for a lift device, according to an exemplary embodiment. The battery system includes multiple base assembly batteries coupled with a base of the lift device, multiple turntable batteries coupled with a turntable of the lift device, a slip ring transmission, and a controller. The slip ring transmission is configured to rotatably coupled the turntable with the base. The slip ring transmission is electrically coupled with both the base assembly batteries and the turntable batteries. The controller is configured to monitor a battery level of the turntable batteries and, in response to the battery level decreasing below a threshold, operate the base assembly batteries to discharge electrical energy through the slip ring transmission to charge the turntable batteries.

Another implementation of the present disclosure is a lift device, according to an exemplary embodiment. The lift device includes a base assembly, a turntable assembly, and a controller. The base assembly includes multiple base assembly batteries. The turntable assembly is rotatably coupled with the base assembly through a slip ring transmission. The turntable assembly includes multiple turntable assembly batteries. The controller is configured to operate the base assembly batteries to discharge electrical energy to the turntable batteries through the slip ring transmission. The slip ring transmission is configured to both (1) drive the turntable assembly to rotate relative to the base assembly and (2) to electrically and communicably couple electrical components of the base assembly with electrical components of the turntable assembly.

The invention is capable of other embodiments and of being carried out in various ways. Alternative exemplary embodiments relate to other features and combinations of features as may be recited herein.

