Recent content by jim4b

  1. J

    Eachine EX4 review - GPS 5G WIFI FPV with 4K HD Camera 3 Axis Stable Gimbal

    The batteries failed on my EX4 from 8-2020 I think for 2 reasons. They expanded due to the chemical action and then pushed off the bottom case piece of it so you could see the insides and it became dangerous for this reason and did not fit in any more. I charged them up to full charge just...
  2. J

    Eachine EX4 review - GPS 5G WIFI FPV with 4K HD Camera 3 Axis Stable Gimbal

    I checked the manual for my last years model EX4, also know as a JJRC X12, and it shows the maximum supported camera micro SD card as 32 GB and class 10, so 64 GB does not work with this drone. The batteries for my EX4 expanded so that the battery cover came off, and then it did not fit into the...
  3. J

    LiPo battery charge level for storage

    Okay thanks
  4. J

    LiPo battery charge level for storage

    During real hot summer weather does it help the LiPo batteries if put into the refrigerator to keep cool?
  5. J

    LiPo battery charge level for storage

    https://www.amazon.com/Blomiky-3400mAh-25-84Wh-Battery-Bugs4W/dp/B07VZ4LMX9/ref=asc_df_B07VZ4LMX9/?tag=hyprod-20&linkCode=df0&hvadid=385546019009&hvpos=&hvnetw=g&hvrand=870193596351773294&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9033389&hvtargid=pla-823056529188&psc=1&tag=&ref=...
  6. J

    LiPo battery charge level for storage

    The type of connection on those batteries is a row of 8 pins built in so that it is not easy to connect to a tester. It is only designed to snap into either the drone or charger mating connector. So I saw a you tube video which said touch the digital multi meter plus and minus probe leads to the...
  7. J

    LiPo battery charge level for storage

    Okay thanks
  8. J

    LiPo battery charge level for storage

    Okay I see, and is there a good LiPo battery tester to be able to check the voltage? Or can I use a standard digital multimeter? My MJX Bugs 4 drone has batteries with 8 connector contacts, and in the charger bottom there are only 4 contacts. So which ones do I use to test them? The charger does...
  9. J

    LiPo battery charge level for storage

    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...
  10. J

    Eachine EX4 (JJRC X12) battery expanded issue

    Okay and thanks for all the helpful information. So now I will bring my bad swollen LiPo batteries into a local recycle place for safe disposal. For my other drone which is a MJX Bugs B4W bought last August, I have not yet had the time to actually fly it, but I did charge both batteries. So...
  11. J

    Eachine EX4 (JJRC X12) battery expanded issue

    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...
  12. J

    battery expanded and pushed open the case while in storage

    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...
  13. J

    controller to drone connection

    Okay so my smart phone is fairly old, got it in 7-2017, a Samsung Galaxy J3 Eclipse. Will it work better with a newer phone, even a Apple iphone? I did find out that Enjoy fly app for android is no longer available at the google play store, but is there at the apple store.
  14. J

    controller to drone connection

    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...
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