DJI O4 Relay LED & Battery Status Guide: Linking, Charge Level & Troubleshooting (Canada)
🇨🇦 CANADA — DJI O4 Relay LED & Battery Status: Linking, Charge Level & Troubleshooting for Canadian Operators
🇺🇸 Reading from the United States? See the U.S. edition: DJI O4 Relay LED & Battery Status Guide: Linking, Charge Level & Troubleshooting
This Canadian edition is written for Canadian DJI Agras operators in the orchards and vineyards of the Okanagan, Niagara and Quebec’s fruit belt. It decodes the O4 Relay battery-level LEDs, charging LEDs and linking status indicators. The procedure, specifications and warnings below are identical to the original edition linked above — the hardware does not change at the border. What changes for a Canadian operator is the regulatory and purchasing context: the aircraft this DJI O4 Relay supports falls into Transport Canada’s medium RPAS class (25–150 kg) and flies on an Advanced Operations pilot certificate under the November 2025 rules, with a Special Flight Operations Certificate for anything outside that envelope, and pricing is shown in Canadian dollars. Ares Acres stocks the O4 Relay signal repeater system and antennas referenced in this guide as genuine DJI Agras OEM parts, ships them to Canada with free standard shipping, and shows CAD pricing at checkout.
The O4 Relay uses separate LED patterns for internal battery level, battery level during charging and device linking status. The manual's tables are concise, so this page reorganizes them into one quick diagnostic reference.
Quick Answer: Press the power button once to check current battery level. The battery display is divided into eight ranges from 88%-100% down to 0%-12%. During charging, the display uses four ranges: 0%-50%, 51%-75%, 76%-99% and 100%. For linking status, alternating green/red means linking, solid green means linking successful and solid red means not linked.
Check battery level with one press
Press the power button once to display the current internal-battery level.
Battery level ranges
| Range |
|---|
| 88%-100% |
| 76%-87% |
| 63%-75% |
| 51%-62% |
| 38%-50% |
| 26%-37% |
| 13%-25% |
| 0%-12% |
Battery level during charging
The charging display groups battery state into 0%-50%, 51%-75%, 76%-99% and 100%.
Linking status LEDs
| Pattern | Meaning |
|---|---|
| Green and red blink alternately | Linking |
| Solid green | Linking successfully |
| Solid red | Not linked |
If the relay remains solid red
Move into the linking workflow rather than treating solid red as a failed antenna or failed relay. Check the linking steps and firmware version. If the app reports an aircraft-model mismatch, use the remote-controller USB-C connection and follow the app prompt to switch the model.
Parts & Equipment Referenced in This Guide
Every part listed above is stocked by Ares Acres as a genuine DJI Agras OEM component, ships to Canada with free standard shipping, and shows CAD pricing at checkout for Canadian customers.
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🇺🇸 Reading from the United States? See the U.S. edition: DJI O4 Relay LED & Battery Status Guide: Linking, Charge Level & Troubleshooting
Canadian Operator FAQ: O4 Relay LED & Battery Status Guide
Does Ares Acres ship the O4 Relay signal repeater system and antennas to Canada?
Yes. Ares Acres ships genuine DJI Agras OEM parts, including the O4 Relay signal repeater system and antennas referenced in this guide, to Canada with free standard shipping, and Canadian customers see CAD pricing at checkout.
Do I need an SFOC to use the DJI O4 Relay with my DJI Agras in Canada?
The DJI O4 Relay itself needs no aviation authorization. The DJI Agras aircraft it supports falls into Transport Canada’s medium RPAS class (25–150 kg) under the November 2025 rules and is flown within visual line of sight on an Advanced Operations pilot certificate; a Special Flight Operations Certificate is still required for operations outside that envelope, such as beyond visual line of sight or payloads Transport Canada treats as dangerous goods. Confirm current requirements with Transport Canada and your provincial regulator before operating.
Is this LED troubleshooting different for Canadian operators?
No. The LED troubleshooting described here is identical in every country; only the regulatory framework, the purchasing path and the units used in this guide differ. Confirm current requirements with Transport Canada and your provincial regulator before operating.
Source and revision note
Primary source: DJI O4 Relay User Guide v1.0 (2024), English LED Patterns section.
