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Air 3 Fly More Combo Charger Capacity Requirement
979 4 2024-10-4
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Tamblot
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Thailand
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Acquired my DJI Air 3 Fly More Combo RC-N2 few days ago and one of the first aspect I looked into is how much  capacity should my charger have to be able to charge all (Air 3, RC-N2, Phone, Charging Hub) at the same time.  Did a quick test and sharing the result here to serve as reference for others.

CHARGER - My existing charger is a 140W brick with three USB C and 2 USB A. Been using this to charge my laptop, mobile devices, powerbanks, etc.  Normally, I use USB C1 if I need 65W to 100W of PD charging with the rest of the Type C ports for lower power requirements.
Charger Spec.jpg

AIR 3 - when powered OFF and battery installed, the drone draws around 64W to 65W of power.  Refer to the USB cable reading (bottom display) as the LCD of the charger keeps refreshing.
Air 3 OFF Charging.jpg

Curious of how much additional power Air 3 will draw when powered ON...charging stopped.  Probably some safety feature to disconnect external power source when Air 3 is ON.
Air 3 ON Charging.jpg

RC-N2 - With the controller powered ON and charging the phone, it draws around 10W to 12W of power.
RCN2 Phone Charging.jpg
CHARGING HUB - tested this with 3 batteries installed.  Max out my charger port with 100W.
Charging Hub 3BP.jpg

Here are the readings when all three USB C ports are charging.  Total charger output at 118W. C1 connected to charging hub at 66W, C2 connected to Air 3 at 44W, C3 connected to RC-N2 at 11W. Difference in total is due to the charger display refreshes faster than the USB cable display.
Charger Combined.jpg
With the charger spec above, the following configuration should be able to support the charge requirements of Air 3 Fly More Combo.
  • USB C1: 100W for Charging Hub - in my case it's capable of delivering 65W with other ports being used and up to 100W when used alone
  • USB C2: 65W for Air 3 - delivers 45W when used together with the charging hub and up to 100W when used alone
  • USB C3: 30W for RC-N2 Controller - delivers 30W when used together with C1 and C2 and up to 100W when used alone








2024-10-4
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Drone.Hunter
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Flight distance : 4537612 ft
Kazakhstan
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Ugreen CD289
2024-10-4
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MisterFrag
Second Officer
Flight distance : 603143 ft
United States
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That’s interesting. I have a different multi-port charger and have never seen the current draw exceed 60W for the batteries. Usually it tops out around 57W. Since DJI’s own charger is limited to 65W I am surprised to see 100W being used.
2024-10-4
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Drone.Hunter
Second Officer
Flight distance : 4537612 ft
Kazakhstan
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MisterFrag Posted at 10-4 18:42
That’s interesting. I have a different multi-port charger and have never seen the current draw exceed 60W for the batteries. Usually it tops out around 57W. Since DJI’s own charger is limited to 65W I am surprised to see 100W being used.

The instructions recommend 100W.
Maybe your charger itself can't do it or the cable doesn't match.
2024-10-4
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Tamblot
lvl.1
Thailand
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MisterFrag Posted at 10-4 18:42
That’s interesting. I have a different multi-port charger and have never seen the current draw exceed 60W for the batteries. Usually it tops out around 57W. Since DJI’s own charger is limited to 65W I am surprised to see 100W being used.

One reason is probably how the multi-port charger implemented PD in their design.  Some chargers I've used before have shared and some have independent per port.

May also be a result of charger throttling its output when drawing 65W max.  I normally use a charger that has at least 125% capacity for its intended use.  If it requires 65W,  I use 100W charger.  For 100W, I use 140W.
Cable may also be a factor as what Drone Hunter mentioned.

2024-10-4
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