DJI Mic 2 battery life and charging case

DJI Mic 2 runs about 6 hours on each transmitter and on the receiver, and the charging case recharges all three about twice, for roughly 18 hours in total. Recording a backup on the transmitters shortens that. To check battery, look at the receiver screen, which shows the receiver and both transmitters, or open the charging case and read the four LEDs on the front.

Battery specs

	Transmitter	Receiver	Charging case
Battery	360 mAh	360 mAh	3250 mAh (18650 cell)
Runtime	About 6 hours	About 6 hours	About 2 full recharges
Charge time	70 min	70 min	2 h 40 min

DJI's 6-hour figure was measured with both transmitters linked to the receiver, without internal backup recording, and the receiver connected to a camera by the 3.5 mm cable. Internal recording, especially in 32-bit float, and cold weather both reduce runtime.

How to check the battery

• Receiver screen: shows the battery for the receiver and each transmitter on the home screen.
• Charging case open: the receiver shows the battery of all three devices and the transmitters' remaining recording time.
• Transmitter LED: solid red means 0 to 10%.
• Case LEDs: four LEDs show the case's own charge, from under 10% to 76–100%. While the case charges, they blink in sequence, and go off when it's full.
• Transmitter while charging: the status LED blinks green once (0–25%), twice (26–50%), three times (51–75%) or four times (76–100%), and turns off when fully charged.

Charging

• In the case: drop the transmitters and receiver in. They charge and link automatically, and power on when you take them out.
• The case itself: USB-C, 5 V/1.5–3 A. DJI recommends a 5 V/2 A charger. A full charge takes about 2 hours 40 minutes.
• Without the case: DJI recommends a 5 V/1 A charger and the DJI Mic USB-C splitter cable; transmitters and receiver charge fully in about 70 minutes.
• Temperature: charge between 5 and 45 °C (41 to 113 °F) for the mics; the case charges between 5 and 40 °C.

Charging case only

If you bought the 1 TX + 1 RX kit, or lost the case, DJI sells the charging case separately. It holds two transmitters with their clip magnets, the receiver and two phone adapters. See DJI Mic 2 kits explained.

Make the battery last

• Turn on auto off. Transmitter Auto Off shuts a transmitter down after 15 minutes when it's not connected and not recording. Receiver Auto Off shuts the receiver down after 30 minutes with no transmitter.
• Sync power with the camera. With the 3.5 mm cable, "Power On/Off Camera Simultaneously" turns the receiver on and off with the camera.
• Skip backup recording on long event days if you don't need it, or use 24-bit instead of 32-bit float.
• Charge the phone through the receiver. With the phone adapter attached, you can charge the phone and receiver together through the receiver's USB-C port.

Not charging?

Try a different USB-C cable and a 5 V/2 A charger, clean the charging pads and pins, and reseat the units in the case. If a unit still won't charge, see DJI Mic 2 not charging.

Need longer runtime? The DJI Mic Mini runs about 11.5 hours per transmitter. Shop the DJI Mic 2 or see Mic Mini battery life.

Related guides

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• Osmo Mobile 6 battery life and charging
• DJI Air 3 battery life: real flight time and charging time
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