A 2000-watt pure sine inverter for the cab. Plug in a mini fridge, CPAP, laptop, or a small microwave without the buzz and heat that a modified-sine unit puts on the equipment.

Two AC outlets, USB-C, and a digital display for voltage. Built-in low-voltage cutoff so you do not kill the batteries overnight. Mounts to the sleeper wall or under the bunk.

Comes with 4-gauge cables and a fuse block. Have a shop or a buddy who knows 12V do the install if you are not comfortable on the batteries.

30-day road test. If it overheats, faults, or cannot hold a CPAP load, send it back.