My battery lasts normally during the day however I am observing a weird issue where when my phone reaches 15% battery warning. It discharges in few minutes which to me is counter intuitive.

I had phone for about a year. I normally last working day without needing to recharge with 50% left. But sometimes if I am using phone a lot it drops to less. I think problem is not with battery but rather with it discharging really fast after warning. It's as if some mechanism starts using more battery after the warning.

I haven't reset phone since I bought it. I don't frequently get to 15% level though, only noticed this behavior recently, and had phone for a while.

I use normal charging mode and not 'fast charging'.

UPDATE: I had a theory that it's 'power saving' mode that was causing this so I changed setting to switch to it at 5% from previous 15% then drained battery and observed and it didn't matter - once battery got to 15% it discharged to 7% in ~3 minutes.

I am sure it's happening to others, why does it discharge so fast? How do I fix it?

  • 1
    @beeshyams suspected the "battery display" might not yet have adapted (it takes a little until the values shown are half-way accurate). With "about a year" of usage, I'd say we can rule that out – unless you frequently factory-reset the device, that is, or often swap apps (i.e. uninstall a bunch and install another bunch).
    – Izzy
    Aug 11, 2016 at 12:34
  • Is this behaviour seen if you charge the battery using fast charge- as a thumb rule, what charges fast will discharge fast too. So this may be the culprit and you may need to verify by charging in standard mode using a standard charger @izzy: That's all I can come up with :)
    – beeshyams
    Aug 11, 2016 at 14:32
  • @beeshyams that's one point more than I had: no more ideas either.
    – Izzy
    Aug 11, 2016 at 14:39
  • @beeshyams no I use normal charging mode. Aug 11, 2016 at 14:47
  • Ahh..that is also ruled out :( , upvoted your question and hope a solution emerges
    – beeshyams
    Aug 11, 2016 at 14:47

2 Answers 2


This was occurring for me as well, and a resolution was reached, although it may not be valid for everyone.

It is the sign of a failing battery, and is unfortunately common in the S6 series. Once the phone goes into Power Saving Mode, it seemed like the battery would drain abnormally fast, sometimes skipping from 15% to 12% immediately.

My carrier (Verizon) claimed that it is indeed a bad battery, and they are aware of the issue. Samsung typically wants you to send your device to them for repair, as removing the case and battery yourself will void any remaining warranty. Thankfully (hah), my device also had a faulty camera, which was close to failing entirely, and Verizon was able to replace my device with a brand new one (not a refurb, which I was surprised at). It was still under a manufacturer's warranty, so I did not have to pay for the replacement.

Regardless, get in contact with your carrier or Samsung, and see what they can do for you. This is unfortunately the only solution that worked for me. All the tweaks and tips from various Android sites were unsuccessful in helping the battery drain.


okay guys i found out the solution it was home run baseball app in mine it must b some app which uses your more battery after 15% left not a battery problem try factory reset if u fail to find out app good luck :)

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