Flywoo O4 1S 5V BEC Module

The Flywoo O4 1S 5V BEC is a dedicated step-up voltage regulator designed specifically to run the DJI O4 Air Unit on ultralight micro builds. Because a single-cell battery cannot supply the baseline voltage required to boot and operate the O4 system, this module efficiently boosts a 1S input to a stable 5V. It guarantees consistent video transmission and prevents VTX resets or brownouts when your battery voltage sags under heavy throttle.

Key features

• Engineered to power the DJI O4 Air Unit directly from a single-cell LiPo or LiHV battery.

• Integrated step-up (boost) converter maintains a regulated output regardless of battery charge state.

• Minimal footprint and ultralight PCB design tailored for weight-sensitive whoops and micro freestyle drones.

Specifications

• Input voltage: 1S LiPo / LiHV (3.1V - 4.35V)

• Output voltage: 5V Regulated

• Compatibility: DJI O4 Air Unit

When wiring this BEC to your flight controller or AIO board, keep the power input leads as short as practical to reduce wire resistance and ensure maximum electrical efficiency.