Battery Health dropped very very fast

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Battery Health dropped very very fast

I have an iPhone SE 2020 since it’s been released, and I use it as my main device every day. Ma battery was still at 100% after one year, and one day it dropped to 98% without even going to 99%.

The battery health has been at 94% for a while, maybe 3 or 4 months, but today (I didn’t even use it a lot) it dropped from 94 to 90% in one hour… I’ve been charging it for a while with the 5W charger, then I moved to the wireless charger at 7.5W and then to an 18W charger, cause it was faster. Now I bought the new MacBook and I’m using the 67W to charge my iPhone, but I know the charger only charges it at 15.6W, so idk what to do and why the battery dropped so fast… can someone help me?

iPhone SE, iOS 15

Posted on Feb 5, 2022 3:17 PM

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Answer 1

Top-ranking reply

steve359

Level 6

17,175 points

Feb 5, 2022 3:35 PM in response to itech2214AuJu0806GR1007

Health is an estimate adjusted according to no particular schedule. 2 years before replacement is considered "normal". When it says 80% and "replace", believe that. Until then just keep plugged in to let optimizer do its work.at

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Answer 2

Feb 5, 2022 3:51 PM in response to steve359

Yes but the problem is that I don’t charge my phone at the same hour every day. I don’t charge it at night, but I charge it when I need some charge to do stuff, when I’m at school I charge it a lot of times cause it runs out of charge very fast when I’m at school cause I use it a lot, and charging optimizer can’t really do what it’s meant for, cause I don’t have times or places that follow a kind of charging routine. I always have it on, but I don’t think it can work as it should due to the way I charge my phone. Anyway, does it cost to replace the battery if my warranty hasn’t exired yet?

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Answer 3

y_p_w

Level 6

17,696 points

Feb 5, 2022 4:06 PM in response to itech2214AuJu0806GR1007

If you actually use the battery, it's going to lose capacity. That's inevitable.

You may just be worrying too much about why it's dropping 4% in one gulp when it hasn't changed for those several months. When the reading updates is unpredictable. It's not real-time, and what you describes is typical.

Honestly I'd say just use it normally and if you think it's time to replace the battery, replace it. There are all these crazy things that might be chased to try and extract a little bit more out of a battery, but in the end it's a small fraction of the cost of the device to replace it. And if you need to supplement the battery run time, a charging case or a USB power bank will help for less than the price of a battery replacement.

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Battery Health dropped very very fast

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