Chosen Solution

Well that’s the case, my battery drains too fast, from 100% to 20% in around 4 hours (1 hour of use); i can usually see the percentage going down.. let me give some details, the phone suffered an accident and the screen broke, since then, the Wifi antenna failed (and will stay grayed out, with a spinning bluetooth) and with his extreme drain, first i replaced the battery by myself with an alternative spare, the original battery was swelled, but the problem persisted even with the new one, since the screen was broken i didn’t used the phone, so couple of days ago took the phone to an authorised iPhone service center to get the screen fixed. Now i see the battery still drains, and well this all the info i could gather.

  • Haven’t replace the wifi antenna, so it might have something to do with.
  • The Battery drains even when the phone’s off (and almost at the same rate)
  • Each % point last a couple of mins at top; but, the first 1% (100%-99%) last much more than the rest.
  • The battery has been recalibrate multiple times.
  • And as the picture in the links shows, coconutBattery says that this battery has just 1 loadclycle (even when i’ve calibrate it many times). this was corroborated by the team working on the authorised service. —–coconut Battery status/ loadcycles, state and draining ratio —- I really believe that the new battery is not working either, so i will get it replaced this week; but there’s a chance that the real problem might be a logic board short circuit… ’’’ so any thoughts?’''

IMO, it’s a logic board problem in the wattage and voltage regulator units. They’re letting too much of the total wattage flow at a single time.

I have similar issue- phone suddenly started draining battery fast, it wont last a few hours. even on low power mode updated ios twice switched battery same issues persist noticed that the battery % can fluctuate a few % up and down when turning on from home button. not noticing any heat. Charging is very slow. Otherwise the phone is fine? Any ideas?

Ok I just started having this problem my battery drains very fast I recalibrated it and it’s draining even faster I’m thinking its a safe bet that I’ve managed to damage the battery somehow but I don’t have the money or time to fix it. I’ve tried multiple restores so I’m assuming the battery is shot now even though it was fine a few days ago my advice don’t ignore the problem when it first presents itself. As for today yesterday I decided to recalibrate my battery so I drained it completely than drained it further the process took until after midnight from when the phone died around almost 6pm. Than I plugged it back in let it fully charge went to take it off the charger this morning and within less than 3 minutes I was almost down to 89 percent. If problem persists it looks like il be asking for a new phone for Christmas. Also if you updated to iOS 10 they addressed this issue

Take off the casing by changing the battery or what…?

I’ve just had this issue with my wife’s phone. Replaced for an aftermarket screen and then had issues with the battery draining ridiculously fast. I refitted the original cracked screen and the problem stopped. I emailed the seller and requested another, which they sent and had exactly the same problem. The Cure: i swapped the home button and earpiece from the original screen to the aftermarket one, refitted, and problem cured! Not sure if it’s a compatibility issue with the aftermarket parts but the Touch ID and battery issue is now sorted. Hope this helps with some of the cases.

Hello. i had the same problem before. i did everything that i saw on google. but it didnt work. the only one that i know that i fixed the problem is when i take off my iphone casing. :)