GEPRC Vapor D5 O4 Pro Review: Flight Impressions and the Best 6S LiPo Battery Setup

The GEPRC Vapor D5 O4 Pro is GEPRC’s latest evolution in 5-inch FPV drone design — a machine built for pilots who want the perfect blend of performance and precision. Designed around the DJI O4 Air Unit Pro, it delivers stunning clarity, reduced latency, and the kind of cinematic control that makes both freestyle and HD flying feel effortless.

Design and Build Quality

At first glance, the Vapor D5 looks bold and mechanical — GEPRC’s new aluminum lens housing and side panel design add both protection and character. The airframe uses a reinforced 5mm carbon arm layout that absorbs vibration well, while the internal silicone camera mount helps the O4 camera stay smooth even during aggressive flips or tight proximity flights.

With an all-up weight around 428g (excluding battery), the balance point sits perfectly for mid-range 6S packs. The frame’s open airflow and solid mid-plate structure make maintenance simple, and the low-profile stack keeps it aerodynamic for faster, cleaner lines.

Flight Experience and Performance

Out of the box, GEPRC’s tuning on the F722-HD V2 flight controller feels crisp and controlled. Whether you’re pulling split-S dives in freestyle or hovering for cinematic shots, the ICM42688-P gyro ensures quick correction without oscillations. It’s clear that GEPRC put serious work into PID tuning for the O4’s heavier camera module.

The quad handles like a stretched 5-inch rig — precise yet forgiving. Throttle response is sharp with a 6S pack, and even on lower C-rated batteries, voltage sag is minimal. The 60A 4-in-1 ESC gives plenty of headroom for sustained current draw during punch-outs, and motor temperatures remain within safe range.

DJI O4 Air Unit Pro: Clarity and Control

The biggest leap forward here is the integration of the DJI O4 Air Unit Pro. Compared with the older O3, the O4 system brings improved dynamic range and reduced latency, making the experience far closer to analog response — only in true HD. Pilots will notice deeper contrast and better highlight retention, especially in mixed sunlight.

The onboard antenna setup and cooling channel are well thought out, so even extended long-range flights don’t overheat the VTX. The O4’s CMOS sensor captures incredible color detail, turning every flight into a cinematic reel without needing post-stabilization.

Recommended 6S LiPo Batteries

GEPRC recommends 6S 1300–1800mAh LiPo batteries for freestyle flying, and that’s exactly where the sweet spot lies. However, long-range and cinematic pilots can step up to 2200mAh or 3200mAh packs for extra flight time — typically pushing 14–19 minutes on mild throttle.

For optimal balance and current delivery, we tested several CNHL 6S LiPo batteries, and the following performed best:

• CNHL Black V2 1300mAh 22.2V 6S Lipo Battery 120C – Lightweight and agile for freestyle.
• CNHL MiniStar 1800mAh 22.2V 6S 120C – Best all-round balance for mixed flying.
• CNHL G+Plus 2200mAh 22.2V 6S 70C – Ideal for long-range or cinematic flights.

All three use XT60 connectors and fit perfectly on the Vapor D5’s battery tray without disturbing center of gravity. For reference, the full list of recommended options can be found in our GEPRC Vapor D5 O4 Pro Battery Collection.

Power Setup and Battery Tips

Keep your packs warm before flight, especially below 15°C, to prevent voltage sag. Dual battery straps are recommended for 2200mAh+ packs to reduce movement on impact. Always check prop clearance when using larger capacity batteries, as the Vapor’s frame design sits low.

When charging, use a balance charger and limit charge rate to 5C or below for LiHV packs. Proper care and voltage monitoring will maintain both cell health and peak current output during freestyle sessions.

Final Thoughts

The GEPRC Vapor D5 O4 Pro isn’t just another incremental FPV update — it’s a complete system tuned for today’s hybrid pilots who fly both for fun and content. It flies like a race frame but records like a cinema rig. Pair it with a reliable 6S CNHL LiPo battery and you’ll have one of the most balanced FPV experiences currently available.

FAQ

Q1: What is the best battery size for the GEPRC Vapor D5 O4 Pro?
A 6S 1300–1800mAh LiPo is ideal for freestyle, while 2200–3200mAh works for long-range filming.

Q2: Can I use a LiHV battery?
Yes, as long as your charger and ESC support HV mode. LiHV packs give slightly longer flight times.

Q3: What connector does the Vapor D5 use?
XT60 is the standard connector, but EC5 packs can be used with adapters.

Q4: How long does it fly on a 2200mAh 6S?
Around 14–19 minutes in cinematic cruising; freestyle flying typically yields 7–9 minutes.

Q5: Does it support GPS and failsafe return?
Yes, it can be fitted with the optional GEP-M10 GPS for rescue or long-range safety.