The Zero Breeze 48V Booster is a DC-DC step-up converter that lets you run the Mark 3 portable AC from any 12V, 24V, or 36V power source in your rig — no 48V battery required. The converter block draws from your existing vehicle or house battery system and delivers stable 48V at 600W output through a 1.2-meter hardwired cable that terminates in the Mark 3's D20 connector. Efficiency is 85–90%, which means less waste heat and more run time from your available amp-hours.
The practical case: a 12V 100Ah house battery can power the Mark 3 directly through this booster for a meaningful stint at camp without any new high-voltage hardware. From a 12V source the booster pulls up to 55A, so fusing and wire gauge matter — the 60A fuse on the positive line isn't optional. Step up to 24V or 36V and current draw drops proportionally, which makes a 24V truck system or a 24V–36V lithium bank an easier fit. The included XT90 to Anderson terminal cable handles the input side; an optional XT90 to eye terminal cable (sold separately) connects directly to 12V battery posts if your setup doesn't have an Anderson connector.
Fits the Mark 3 only. Not compatible with the Mark 2 or any other equipment. If you're running a 12V system, confirm your battery can sustain 55A continuous output and route through a 60A+ fuse on the positive line before the booster. The booster is not UL/CE certified for standalone use — it's designed as an integrated component of the Mark 3 power system.
