Hey guys i finally opened up my crystal sky monitor snooping around and was thinking about the cooling mod. However i came across this internal battery. any idea what is this batter used for?
The CrystalSky (rather usefully) supports hot swappable batteries.
This means that mid-flight you can remove the external battery on the CS and it’ll continue to run while you put the next battery in.
Not a feature I’ve ever needed to use in the field as the CS batteries just last forever anyway 
Have a look at the power settings on the CS and you’ll see two battery levels (int+ext).
If memory serves, you either can’t boot the CS from cold on internal battery alone, or you can but the display remains off 
Anyway, I’m a nutshell, it’s to allow hot swappable external batteries.
Did it come with a manual? Just a thought.
DJI, manual, not two words you normally associate with each other!
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Ah! - Not familiar with them altho’ enough noise is made of them… 
The 5.5" is good but a bit small, the 7.85" are very good but bloody heavy after a few minutes!
Thank you PingSpike, I learned something new. I never knew this
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