Greetings to all Aqara fans!
Let me try creating my first post on this cool new forum.
I think this data might be useful for those who are interested to learn a bit deeper about how much power could be used by the G5 Pro (in this case it’s a POE version) via its USB-C port and some more little things you may want to know about it. This is quite my personal project to conduct this test during the beta testing of G5 Pro, which is now allowed to share since the G5 Pro is officially released. Well, I’m not breaking NDA 
POWER CONSUMPTION (USB-C)
Let’s take a quick look at this chart to see how the G5 Pro consumes power in different LED states. Note that there are no Zigbee or Thread child devices paired to the G5 Pro at the time of testing.
I roughly read the measurements from my USB tester POWER-Z KM003C. The G5 Pro seems to rarely consume more than 5W [as per specs, it shouldn’t consume much more than 10W (5V 2A)].
- When idle (LED Spotlight is off and not viewing the live stream), the G5 Pro consumes approximately 1.3-2.4W.
- When viewing camera live stream with LED Spotlight off (wether on Aqara app or Apple Home), it consumes very close power range as idle.
- When LED Spotlight is on at 100% brightness (without viewing camera stream), it consumes approx. 3.2-4.3W.
- When LED Spotlight is on at 50% brightness (without viewing camera stream), it consumes approx. 2.1-3.1W.
- When LED Spotlight is on at 25% brightness (without viewing camera stream), it consumes approx. 1.7-2.8W.
- When LED Spotlight is on at 12% brightness (without viewing camera stream), it consumes approx. 1.6-2.4W.
- When LED Spotlight is on at 1% brightness (without viewing camera stream), it consumes approx. 1.4-2.5W.
HOW LONG A 10,000mAh POWER BANK CAN FEED THE G5 PRO?
For those wondering how long a 10,000mAh (approx 36Wh) battery will power the Aqara G5 Pro. I tested with my powerbank Cuktech PB100P, and it lasted for more than 9 hours (without LED spotlight on). I didn’t remember how exactly long it continued to power the camera, but my USB logging software crashed when it was around 10 hours. Unfortunately, I haven’t conducted more tests yet. But now we can have an idea that it lasts at least 9 hours without issues. As shown in this chart (below), after 9 hours 50 minutes, it used 17Wh of energy, so if we take it as an easy math, this 10,000mAh (36Wh) power bank should be able to keep the G5 Pro running 18 hours continuously before it completely drains out [after 9 hours, it uses 17Wh of energy, so 18 hours should be 17x2Wh which is approximately 34Wh, close enough to our 36Wh power bank.]. But please keep in mind that it’s just an assumption; real test results may vary 
And some other things you might want to know about the G5 Pro’s USB-C…
USB Cable C-to-C VS A-to-C?
You can power the G5 Pro with either USB-A to USB-C cable or USB-C to USB-C cable. It should be working flawlessly as long as the cable is intact and the power supply (your USB charging adapter) has enough power for the G5 Pro.
USING A PASS-THROUGH POWER BANK AS A UPS FOR G5 PRO?
Some power banks come with pass-through charging functionality, which allows you to charge (other devices connected to it) and recharge (itself from a USB wall charger) simultaneously. So you might want to know if it’s possible to use them as a UPS for your G5 Pro.
Good news! This solution works with the G5 Pro. In my case, the Cuktech PB100P works well this way without significant heat at all. But I think you might want to consider something more reliable if you want a real serious UPS solution, as this power bank isn’t advertised to act like a UPS, it just works. Try at your own risk.
DOES G5 PRO WORK IF USING USB-C FEMALE TO MALE EXTENSION CABLE?
Yes, it works. At least for me. I tried using my 1m Ugreen 5A USB-C Female to USB-C Male extension cable (Ugreen US372) along with the original USB-C to USB-C, which comes out of the box of the G5 Pro. It works stably. I’d love to try daisy chaining them to be longer to test it but I don’t have more cable unfortunately (theoretically, daisy chaining cable is a terrible idea.).
That’s all for today. I hope this post will be somehow useful for you.
Again, it’s great to be here with you guys, whether you are a part of Aqara Team, my fellow testers around the planet, and all Aqara fans who are joining us in the future. Hope this forum will be a good place for all kinds of smart home thinkers, and hope everyone will help create a good learning environment for all.
Have a great day!
Tai