DJI
DJI TB65 Intelligent Flight Battery
The DJI TB65 is the intelligent flight battery for the DJI Matrice 350 RTK. It is a 5880 mAh, 44.76 V lithium-ion pack rated at 263.2 Wh that the M350 RTK uses as a hot-swappable pair to deliver up to 55 minutes of flight time, an aircraft operating temperature range of –20 °C to 50 °C, and the cold-weather auto-heating function the airframe relies on for sub-freezing operations. The TB65 is also compatible with the DJI Matrice 300 RTK following the appropriate firmware update on the airframe.
Intelligent flight battery for the DJI Matrice 350 RTK. 263.2 Wh, hot-swappable, used in pairs, with auto-heating for cold-weather flight.
Features
- Factory flight battery for the DJI Matrice 350 RTK, used as a hot-swappable pair: two TB65 packs deliver up to 55 minutes of flight time on the M350 RTK without payload
- Compatible with the DJI Matrice 300 RTK following the M300 RTK firmware update that adds TB65 support
- 5880 mAh, 44.76 V, 263.2 Wh lithium-ion chemistry sized for the M350 RTK's 9.2 kg max takeoff weight and its full range of supported payloads
- Self-heating function automatically engages below 5 °C (41 °F) so the battery is ready to fly in cold-weather public-safety, utility, and inspection operations
- Operates across a –20 °C to 50 °C (–4 °F to 122 °F) range, with an ideal storage range of 22 °C to 30 °C and a recommended charging window of 15 °C to 35 °C for maximum battery life
- Charges in approximately 60 minutes for a pair on a 220 V supply, or about 70 minutes on a 110 V supply, when paired with the BS65 Intelligent Battery Station; an 80% partial charge takes roughly 30 minutes on 220 V or 40 minutes on 110 V
- Hot-swap support on the M350 RTK lets the aircraft stay powered up between flights, reducing IMU and RTK reinitialization delays on long-day operations
Specifications
| Specification | Value |
|---|---|
| Model | TB65 |
| Capacity | 5880 mAh |
| Voltage (nominal) | 44.76 V |
| Energy | 263.2 Wh |
| Chemistry | Lithium-ion (Li-ion) |
| Weight | Approximately 1.35 kg per pack |
| Operating temperature | –20 °C to 50 °C (–4 °F to 122 °F) |
| Charging temperature | –20 °C to 40 °C (–4 °F to 104 °F) |
| Auto-heating activation | Triggers when ambient is below 5 °C (41 °F) |
| Recommended charging range | 15 °C to 35 °C (59 °F to 95 °F) |
| Ideal storage temperature | 22 °C to 30 °C (71.6 °F to 86 °F) |
| Charging time (pair, 220 V) | ~60 minutes to full, ~30 minutes from 20% to 90% |
| Charging time (pair, 110 V) | ~70 minutes to full, ~40 minutes from 20% to 90% |
| Compatible airframes | DJI Matrice 350 RTK; DJI Matrice 300 RTK (with TB65-compatible firmware) |
| Compatible charging station | DJI BS65 Intelligent Battery Station (sold separately) |
Who this is for
- Matrice 350 RTK operators adding spare flight packs to extend a mission day or to rotate batteries through a charging station between sorties
- Matrice 300 RTK operators upgrading to TB65 batteries after the firmware update, either to standardize a mixed fleet or to take advantage of the newer chemistry
- Public-safety, utility, inspection, and survey fleets that fly the M350 RTK in cold weather and need the TB65's auto-heating function to keep the aircraft mission-ready in sub-freezing conditions
- Fleet managers building out a per-airframe battery inventory sized to support continuous operations across a shift
What's included
- 1 × DJI TB65 Intelligent Flight Battery
Please note: The Matrice 350 RTK uses TB65 batteries in pairs. A single TB65 will not power the aircraft on its own; both bays must be populated with paired, balanced packs before flight. This listing is a single battery, sold for use as a spare, replacement, or as half of a pair being built up. The DJI BS65 Intelligent Battery Station and any required cables are sold separately. To use the TB65 on the Matrice 300 RTK, update the airframe firmware to a version that lists TB65 support before installing the batteries.
Travel and shipping: At 263.2 Wh, the TB65 exceeds the 160 Wh per-battery limit set by the FAA, IATA, and most major airlines for lithium batteries in passenger carry-on. The TB65 cannot be carried onto a commercial passenger flight. Shipment by air is regulated as dangerous goods (UN3480 / UN3481) and must be handled by a shipper qualified to ship lithium-ion batteries under IATA Dangerous Goods Regulations.
FAQ
Which aircraft is the TB65 for?
The TB65 is the factory flight battery for the DJI Matrice 350 RTK. It is also compatible with the DJI Matrice 300 RTK after the airframe firmware is updated to a version that supports the TB65. The TB65 is not compatible with the Matrice 30 Series, Matrice 4 Series, Matrice 4D Series, or Matrice 400 Series; those aircraft use different flight batteries.
How many TB65 batteries does the aircraft use per flight?
Two. The Matrice 350 RTK and the Matrice 300 RTK both fly on a balanced pair of TB65 packs installed in the aircraft's two battery bays at the same time. A single TB65 will not power either airframe on its own. Plan your inventory in pairs and replace pairs together so the cycle counts stay matched.
Are the TB65s hot-swappable?
Yes. The M350 RTK supports hot-swapping a single battery while the other pack continues to power the aircraft, so the airframe stays in a powered state between flights and avoids the IMU and RTK reinitialization that comes with a full power cycle. Refer to the M350 RTK user manual for the hot-swap sequence.
What's the flight time on a pair of TB65s?
Up to 55 minutes on the Matrice 350 RTK with no payload installed, measured at approximately 8 m/s in a windless environment until the pack reaches 0%, per DJI's published data. Real-world flight time with a Zenmuse H30T, L2, P1, or other payload is shorter and varies with wind, temperature, and flight profile.
How long does it take to charge a pair?
With the DJI BS65 Intelligent Battery Station, approximately 60 minutes to fully charge a pair on a 220 V supply, or approximately 70 minutes on a 110 V supply. A 20% to 90% partial charge takes approximately 30 minutes on 220 V or 40 minutes on 110 V.
Does the TB65 work in cold weather?
The TB65 has a built-in auto-heating function that triggers when the ambient temperature drops below 5 °C (41 °F). The battery warms itself to a usable temperature before discharge begins. The operating range is –20 °C to 50 °C (–4 °F to 122 °F). Charging at low temperatures may reduce battery life, so the recommended charging range is 15 °C to 35 °C (59 °F to 95 °F). When possible, charge indoors and let packs reach the recommended range before connecting them to the station.
Can I take the TB65 on a commercial flight?
No. At 263.2 Wh, the TB65 exceeds the 160 Wh per-battery limit that the FAA, IATA, and most airlines apply to lithium batteries in passenger carry-on. It is not eligible for passenger air travel, even with airline approval. To move the battery by air, you need a shipper qualified to handle UN3480 / UN3481 lithium-ion shipments under IATA Dangerous Goods Regulations.
How long does the TB65 last?
DJI rates the battery against three thresholds, and the service life is reached when any one of them is hit first: 12 months from the date of first use, 400 charge cycles, or 120 days of high-power (high state of charge) storage. Document the date of first use, log cycles in DJI software, and rotate packs through partial-charge storage to maximize useful life.
How should I store the TB65 between flights?
For short periods between flights, store at room temperature out of direct sunlight. For longer storage (more than 10 days), discharge the pack to approximately 40 to 65% and keep it in the ideal storage range of 22 °C to 30 °C (71.6 °F to 86 °F). DJI's intelligent battery firmware will self-discharge a stored pack toward a safe storage level after a configurable interval; refer to the M350 RTK user manual for details and to configure that interval to fit your operation.
