28wins
lvl.4
United States
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joe_gadget Posted at 2018-6-1 00:22
Sure, if they wanted to. Cheaply? No idea.
And USB 5V is hardly legacy, only a small number of devices support QC3 (and even less use PD) charging now so it won't become mainstream for some time yet. Why, because manufacturers won't incorporate these charging methods that cost $ into lower level products. And certainly many of the devices which only use low voltage lipos don't require more than 5v anyway.
Except, the Mavic Air is NOT a "lower level" product.
So your argument/ worry about cost and margins is not a good fit for this product.
If they could provide charging over USB for the Spark, they can do it for the Mavic Air at their respective price startegies.
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At this point, many people asked and DJI still have not come out to clarify whether the MA has been designed with the ability to charge its battery over its USB port.
If they have and it is simply disabled, threads like these will encourage them to enable it.
If they haven't, threads like these will provide feedback so that they do include it in the next design.
Either way, having the feature is desirable. It's better to have the option and not use it than need it and not have it.
The Mavic Air is a portable drone. The whole idea is that it's small enough to have it with you all the time, even in remote areas.
Why wouldn't you treat it like any other mobile device when it comes to topping off/ charging the battery?
Further, LiPo is 4.2V max charge PER cell. The batteries use several cells.
There are other considerations to charging a LiPo other than the voltage you are feeding them. Balancing the cells for instance is critical. No one in this thread asked for or expected to beat charging time records. We want the option to charge over USB.
The Spark uses a 1480 mAh LiPo 3S.
The Mavic Air uses a 2375 mAh LiPo 3S.
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