EdM
Captain
Flight distance : 1491814 ft
Norway
Offline
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fans82a39c9b Posted at 2016-12-19 21:28
Jamie, if, as you state, "you have to warm up the batteries prior to taking off, then you can fly in the cold" why then do DJI publish on the website that the battery operating temperature range is -10 to +40C?
If you are happy to accept degraded performance at lower battery temperatures within the DJI published battery temperature range why then do you need to warm the batteries prior to taking off?
The batteries perform in this temp range very well, as long as you follow some common sense precautions that are part and parcel to using any LiPo battery. Lets start with the high end of the range. Set so that when the outside temp is that high the batteries will not overheat in use. They will be well over 40 C after a 15 minute flight. Start off at 50 C and they may just get too hot. On the low end I think it's set because some people dilly dally so long in getting ready for flight the battery would get too cold to put out proper amperage. I feel the battery should be kept at least 50 F or higher before use. If you do then you should be able to operate well below -10 C. Easy to do, use a warmer or keep it inside your coat next to your body till just before use.
And it's not just DJI battereis, all LiPo's are similar. If you think these are bad you should have had to fly back in the day of NiCads and NiMH batteries.........of course we were using them in RC airplanes cause we didn't have quads back then. |
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