I guess maybe these would be functional in some commercial applications. But they don't make sense, at least not to me, for recreational flying
I'll just look at these chargers in terms of the
Mavic 3, & batteries
start with the cost: essentially $800. That's about the cost of 4 'extra'
Mavic 3 batteries. If you already have 3
M3 batteries, you can buy 4 more batteries and theoretically go out flying with over 5 hours of flying capacity. That seems more than enough to me
OR. you could buy a couple of small power packs...
plus an extra charging hub...and 3 extra batteries. And still have less into it than that suitcase charging solution. And those power packs could not only charge
Mavic 3 batteries but all other drone batteries...plus devices, flashlights, etc.
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I'm seeing that the
Mavic 3 charging solution outputs at 17.6 volts...which happens to be the maximum voltage a
Mavic 3 battery will accept. Now, I don't fully accept the arguments that maximum charging reduces the life of a battery. If it does, the impact will still be negligible because even a reduced life will still last several years and chances are pretty high people will have moved to other drone platforms
still, I have 2 of the power packs I linked and I have not really noticed any extra charging duration for batteries. I'm sure those Colorado systems charge a little faster but that's negligible impact for me. And my power packs don't max out input voltage.
but the other thing is those Colorado charging cases still need a power source. If you're
'out in the field' or out camping you need to plug them into a car/RV battery or a generator. If you do that, then you can simply get a 12V charge adapter for a fraction of the cost
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as I said, I'm just a recreational flyer. My perspective is probably completely different than a commercial pilot. Those charging solutions might seem essential to somebody like that.