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Storing Phantom 3 Advanced Batteries for months at a time

Discussion in 'Pro/Adv Discussion' started by daybeers, Aug 2, 2016.

  1. daybeers

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    Hello!

    I will be attending American University in Washington, DC this fall. I love DC, except for the fact that no drones are allowed. Therefore, I will be leaving my P3A at home. I have two batteries for it.

    Is it okay to have the batteries discharge through the software and then leave them for months at a time until I come home and fly it at breaks such as Thanksgiving and Christmas? If they need to be turned on once in a while or plugged into the aircraft, I could have someone at home do that for me.
     
  2. msinger

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    It's okay to store them for months, but you don't want them to drop below 30% charged. It would be a good idea to check them after 2 months and charge them back up (until at least the 3rd light is blinking) if the second light is not illuminated.
     
  3. daybeers

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    Gotcha. Thanks!
     
  4. Karanba

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    Is it ok to leave them on 30% for long period ? I mean near Low Battery alarm ? I have 3 of them on 1 solid LED, should I charge them to 2 LEDs and then leave them stored ?
     
  5. msinger

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    Yes. Keep in mind they will slowly discharge even further over time though.

    Charge them until the 3rd light starts blinking.
     
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  6. Karanba

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    Ok, thanks, will do that tommorow. Does it count that like 1 charge then ?
     
  7. msinger

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    Are you asking if that increments the battery "Times Charged" count? If so, that number is only incremented when the battery is charged 100%. Since the battery never goes down to 0%, it'll take at least two charges to increment that count.
     
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  8. Karanba

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    Yes, just asking to know if it will get a lot of total charges only by charging them to store level every time. So it adds percentages to 100% and then counts 1 charge. Thanks for clarification.
     
  9. Mocho

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    30% is OK, but I prefer to leave them at the optimal level of 50%. Not only is it best for the battery, if you forget to check them it provides a little more room before they are discharged too low (3v per cell) and likely ruined.

    I realize you can't fly in DC proper, but it's only a 60 minute drive west and your in the Blue Ridge Mountains along the Shenandoah river. Some gorgeous scenery in that area!!
     
  10. daybeers

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    Oh that is true! I'll look into that, but it is far away for a college kid. Not many students in DC have a car: it's needed and not too useful.