Sudden unexplained battery drain

I've had my Axon, Model ZTE A2017U for about 6 months, and I've been super happy with it. About 2 weeks ago, however, I noticed that my battery drains super fast. I can literally see the percentage of charge count down. If I take it off the charger at 100 percent, within 5 minutes it will be down to below 90 percent.

It's now 6:43 a.m. EST. It was 100 percent last night at 9:30. I took it off the charger, and it went to 90 percent almost immediately. I put it in airplane mode for the night. When I woke up (about 5 a.m.) it was about 70 percent. It's now at 46 percent. No usage, it's been on airplane mode most of the time, but most of the drain this morning has been when airplane mode is off. Hardware usage 78 percent. Standby 42, Screen 37. Screen hasn't been on for more than 10 minutes in total. These stats are typical, most of the drain is standby and screen.

Comments

  • adrbadrb Toronto, CanadaPosts: 719 ✭✭✭✭✭✭

    Check if your phone goes in deep sleep mode with a widget or app like this: https://play.google.com/store/apps/details?id=de.cmweb.deepsleep&hl=en

    If it does not go in deep sleep, you need to find if usually a recently installed app may do this.

  • DoppelgangerDDoppelgangerD Master Of Ceremonies United States Posts: 1,807 ✭✭✭✭✭✭✭✭

    @cortes0505 said:
    I've had my Axon, Model ZTE A2017U for about 6 months, and I've been super happy with it. About 2 weeks ago, however, I noticed that my battery drains super fast. I can literally see the percentage of charge count down. If I take it off the charger at 100 percent, within 5 minutes it will be down to below 90 percent.

    It's now 6:43 a.m. EST. It was 100 percent last night at 9:30. I took it off the charger, and it went to 90 percent almost immediately. I put it in airplane mode for the night. When I woke up (about 5 a.m.) it was about 70 percent. It's now at 46 percent. No usage, it's been on airplane mode most of the time, but most of the drain this morning has been when airplane mode is off. Hardware usage 78 percent. Standby 42, Screen 37. Screen hasn't been on for more than 10 minutes in total. These stats are typical, most of the drain is standby and screen.

    Try clearing the cache in the settings/storage section of your device.
    You can also try checking the power manager settings, and perhaps going into the 'power management for apps' section and restoring all apps to default settings for power management.
    On top of that, you can try booting to recovery and clearing the cache partition from that menu and rebooting.
    Again, when it comes to power management, try to make sure you don't have any apps installed that are draining power excessively. If in doubt, try to delete any apps you believe to be suspect, and then see if the issue goes away.
    As a last resort, you may need to reset the whole device to factory default settings under the 'backup and reset' menu.
    If you do that though, it will erase everything on your device, so only choose that as a last resort, but it may be necessary if the issue persists after trying all other avenues. Even if after a factory data reset, the problem continues, you will likely need to send the device into ZTE support for repair.

  • jasonejasone United States Posts: 2,039 ✭✭✭✭✭✭✭✭

    In the past when I've had battery issues they've always been resolved by either clearing the cache from recovery or doing a factory data reset like is mentioned here. I had to clear the cache from recovery just last week to address this on a device. The next day the battery life was significantly better.

  • kevinmcmurtriekevinmcmurtrie Silicon Valley areaPosts: 317 ✭✭✭✭✭✭

    Such rapid battery drain should make the phone warm - the power must go somewhere. The battery has failed if it's dying and cold.

    LiPo batteries last for the equivalent to 300 to 500 full charge/discharge cycles. The Axon 7 has been out long enough that heavy battery users will start seeing failures.

  • gazoogazoo Posts: 18 ✭✭✭✭✭

    @kevinmcmurtrie said:
    Such rapid battery drain should make the phone warm - the power must go somewhere. The battery has failed if it's dying and cold.

    LiPo batteries last for the equivalent to 300 to 500 full charge/discharge cycles. The Axon 7 has been out long enough that heavy battery users will start seeing failures.

    The majority of cell phone users will get 2000 plus cycles out of the battery. To get only 300 to 500 cycles one would have to totally drain the battery before recharging consistently.

  • gurudesignlgurudesignl United StatesPosts: 1 ✭✭
    Solved. I had this problem. My phone would drain after about half a day.  Thought it was the battery because it was old. Battery was old but not puffy however from overcharging and passed the spin test. I bought a new high end battery but still had the same high drain problem. Phone always warm. Went to AT&T specialist. They researched online referencing this site actually. She said I needed a new phone. :/

    Not content with that I researched harder. I noticed on my phone under settings, battery, that Messages app was using 45% of my battery!!

    I downloaded an app called System Info for Android.

    I went to logs to see what Messenges was doing behind the scenes. It was pinging over and over this huge url but not finding it.... All day!!! That waswthetbattery killer. I deleted Messages SMS app  replacing it with a different texting app, ChompSMS. As soon as Messages was gone, so was the problem. 
  • randguyrandguy United StatesPosts: 1 ✭✭

    I had the same problem last weekend; the battery would drain rapidly, even while charging it lost 2% for every 1% it gained. Kind of like a drunken person trying to walk, 1 step forward, 2 backward. Anyway, it turned out to not be a battery issue per se but an Android issue. After clearing cached data and all Google apps data - all of it - battery consumption returned to normal. So, before changing the battery or anything like that, make sure to check if it's actually just a symptom of a Google apps bug. It's most likely to do with Google Play services that's running in the background all the time, which is the most resource intensive of all Google apps.

  • cf07cf07 CanadaPosts: 148 ✭✭✭✭✭

    we had battery drained to 0 by itself 3 days ago without reason.

    I suspect certain outfit is scouting all the phones data in the background.

Sign In or Register to comment.