How to Register a DJI Flip in the UK

The 249g vs 259g Battery Question

The DJI Flip presents a unique regulatory situation in the UK. With its standard battery, the drone weighs exactly 249 grams — one gram below the threshold that triggers full registration requirements. This is by design: DJI engineers the Flip (and the Mini series before it) to sit just under the regulatory boundary.

However, DJI also offers a Plus battery for the Flip that extends flight time but increases the total weight to approximately 259 grams. That 10-gram difference fundamentally changes your regulatory obligations:

Registration with Standard Battery (249g)

Flying the Flip with the standard battery keeps you under 250g. Your registration obligations are minimal:

• Flyer ID: Required. Every drone pilot in the UK must hold a Flyer ID regardless of aircraft weight. Pass the free online test at the CAA drone registration service.
• Operator ID: Not required for personal, recreational flights.
• Open A1 subcategory: You may fly over uninvolved people (never over assemblies of people).

Registration with Plus Battery (259g)

The moment you attach the Plus battery, the Flip becomes an over-250g drone in the eyes of the CAA:

• Flyer ID: Still required (same as above).
• Operator ID: Now mandatory, even for personal flights. Register and pay £10.33 per year.
• Label the drone: Your Operator ID must be displayed on the aircraft or visible inside the battery compartment.
• Open A1/A3: As a legacy drone over 250g without a class mark, you operate under different subcategory rules. The A3 subcategory requires a 150-metre buffer from residential and commercial areas.

Many Flip owners keep both batteries and switch between them. If you ever fly with the Plus battery, you should register as an Operator and keep your ID displayed at all times — even when switching back to the standard battery. This avoids any risk of accidentally flying unregistered.

Key Features of the DJI Flip

The Flip is a compact, foldable drone that builds on the legacy of DJI's Mini series. Notable specifications include:

• Integrated propeller guards: Built into the foldable arms, offering protection during close-proximity flights and indoor practice.
• 2/3-inch CMOS sensor: Captures detailed 4K video at 60 frames per second.
• 31-minute flight time: With the standard battery. The Plus battery extends this further at the cost of exceeding 250g.
• Foldable design: Compact enough for backpack carry, making it popular among hikers and travellers.

Where You Can Fly

With the standard battery (sub-250g), the Flip enjoys some of the most relaxed flying privileges available in UK airspace:

• Over uninvolved people: Permitted under Open A1, provided you do not fly over organised assemblies.
• Urban areas: No 150-metre buffer required (unlike heavier drones in A3). You can fly in parks, gardens, and residential areas.
• 120-metre altitude: Standard ceiling for all Open category operations.
• VLOS: Visual line of sight must be maintained at all times.

Remember that local bylaws, landowner permissions, and Flight Restriction Zones apply regardless of your drone's weight. National Trust properties, many council parks, and the Royal Parks all prohibit drone flights. Check before you fly.

Quick Checklist for DJI Flip Pilots

• Standard battery (249g): Flyer ID required, Operator ID not needed for personal use.
• Plus battery (259g): Both Flyer ID and Operator ID (£10.33/year) required.
• Always check which battery is installed before each flight.
• If you own both batteries, register as an Operator to stay compliant regardless of which battery you use.
• Open A1 with standard battery — can fly over uninvolved people.
• 120m altitude, VLOS, no assemblies — these rules apply at any weight.
• Check local bylaws and FRZs before every flight.