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So at the end of each summer drone flying season what is the best suggested battery charge level for safe storage. I saw some where that you should only charge your lithium polymer drone batteries to about the 50% level to avoid any possible expanding damage. Is that correct. I had fully...

So my Eachine EX4, (also as JJRC X12), drone was last used back in September of last year, 2020 and it was in the case in my house at room temperature stored safe. But when I just got the 2 batteries back out to charge them, one has expanded so much that the battery case pushed off the bottom...

So my Eachine EX4 drone was last used back in September of last year, 2020 and it was in the case in my house at room temperature stored safe. But when I just got the 2 batteries back out to charge them, one has expanded so much that the battery case pushed off the bottom cover piece. Also I can...

So I have a Eachine EX4, ( JJRC X12 ) and a new MJX Bugs 4 W b4w quadcopter drones. So they say to first connect your phone to the controller wireless after you turn it on. And then open up the application to fly and turn on the drone. Then after the drone does it initialize process in 30 - 60...