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Why Does My SkyFi 3 Battery Self-Discharge In Two Weeks?

The battery in my SkyFi3 self-discharges completely in 14 days.  I had noticed this happening for some months and finally got around to measuring it.  On October 21, 2018, I fully charged the battery, checked that it was 100% using Sky Safari, and left it disconnected until now.  The only use was to quickly check the level of charge using Sky Safari.  I did that twice, so maybe 2 minutes of powered use in 2 weeks.  This morning the battery was totally discharged.  I also have an Orion StarSeek, which I charged at the same time.  It was also left unconnected and unused, and now has a charge level of 80%.  So I doubt my SkyFi battery is behaving normally.  What can I do about it?

7 comments

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    Keiron Smith

    Hi Roy,

    If you haven't already, try reinstalling the firmware. 

    http://www.skysafariastronomy.com/skyfi-3-professional-astronomy-telescope-control.html (look halfway down the page for instructions).

    Thanks!

  • 0
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    Roy

    Keiron,

    I have reinstalled the firmware as requested.  The SkyFi is again 100% charged, unpowered and unconnected.  I'll get back in a few days -- previously the battery discharged very noticeably that fast.  Also, please note, the title above should say "2 weeks", not "48 hours".  Thanks for the quick reply.

  • 0
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    Keiron Smith

    Corrected, Roy!  Thanks and fingers crossed!

  • 0
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    Roy

    After 3 days my unused, unconnected SkyFi battery level has gone from 100% to 89%.  That is an improvement -- before I reloaded the firmware I think it went from 100% to 64% in 3 days.  Looks like it will still need recharging every few weeks, or at least every new moon, especially if I'm lucky enough to get to use it.  Is this normal?

  • 0
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    Keiron Smith

    Hi Roy, 

    How does this compare to the Orion StarSeek?  Please also let me know how much it discharge over the next 3 days.  I will check with the developers about (unused, unconnected) expected discharge % over time.

    Thanks!

  • 0
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    Roy

    Keiron,

    Ok, the Orion StarSeek battery has not been charged since October 21, and now shows 63%.  The SkyFi battery is now (Saturday 11/17 at 2:20 PM) at 55%.  As reported above it was recharged on November 6.  Both have been unconnected and unused.  So the StarSeek battery charge went down 37% in 27 days, and the SkyFi went down 45% in 11 days..

    So did the developers have any discharge information?  Is this normal behavior?  Thanks -

  • 0
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    Roy

    Last night I checked both SkyFi and StarSeek batteries again, using Sky Safari as usual.  The SkyFi showed a charge level of minus five percent (-5%), but it did turn on and stay powered for a minute or so until I turned it off, so it must not have been totally discharged.  The StarSeek is still hanging in with 55%.  So the SkyFi has taken 23 days to self-discharge.  The StarSeek has gone down 45% in about 39 days.  I have now recharged the SkyFi battery, which appeared normal and showed 100% capacity afterward.  Still need answers to the questions above.

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