It will be battery optimisation charging. You can turn it off in the airpod settings. You need to have the case open for this to show up. Answer from ToddyFatBody on reddit.com
Reddit
reddit.com › r/airpods › airpod pro’s won’t charge above 80%. how do i fix it?
r/airpods on Reddit: AirPod Pro’s won’t charge above 80%. How do I fix it?
January 6, 2023 - It takes time to learn your charging patterns. If it thinks that it can charge to 80%, hold there and then charge to 100% just before you unplug (get the earbuds out of the case I guess) then it will do so.
Apple Community
discussions.apple.com › thread › 251628168
AirPods no longer charging to 100% - Apple Community
I've had this airpods 1st gen I guess for about three years and I just noticed that last year, it used to charge up to 100%, this time, after putting it in the charger from 10am to 1pm, it only went to 96%. Is this normal wear and tear? ... Airpods pro battery not 100% my airpods immediately drop to 99% after taking them out of the case even though they display 100% when they’re still charging.
Videos
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How To Fix AirPods Not Charging - Full Guide - YouTube
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Apple Support
support.apple.com › en-us › 102593
If your AirPods won’t charge - Apple Support
You can use your iPhone or iPad, your Mac, or your charging case to check the charge status of your AirPods. You can also use your iPhone or iPad to turn off the Optimized Charge Limit on your AirPods Pro 3 and charge your AirPods fully.
Gadget Hacks
ios.gadgethacks.com › how-to › make-sure-your-airpods-pro-are-always-fully-charged-by-turning-off-setting-0384075
Make Sure Your AirPods Pro Are Always Fully Charged by Turning Off This Setting << iOS & iPhone :: Gadget Hacks
November 21, 2020 - Instead of carrying around a portable power bank to charge your AirPods Pro case and AirPods Pro, there's one setting you can disable. Apple introduced "Optimized Battery Charging" for AirPods Pro in iOS 14.2. If you aren't running that version of iOS, you have nothing to worry about.
Apple Community
discussions.apple.com › thread › 254389523
Why my airpods only charge 80% right earb… - Apple Community
November 21, 2022 - Why my airpods only charge 80% ... charge 100%? I tried to chart for 1 day. always up charging like this The right earbud. i timed from 12am-4pm. Battery charged to 2% ... For help with charging your AirPods, ensure the case and connections are clean. The steps below found in the article here ...
Reddit
reddit.com › r › airpods › comments › gletvq › airpods_pro_case_wont_charge_to_100
Airpods Pro Case Won't Charge To 100
December 24, 2019 - A subreddit dedicated to Apple's AirPods, AirPods Pro and Max, and other future wireless headphones. ... I charged it at 7:10 with it being at 52 and when I checked on it at 8:50 it still hadn't gotten to 100 but that the light on the charge when plugged in was green.
Apple Support
support.apple.com › en-us › 100494
If your left or right AirPod isn't working - Apple Support
If your case isn't charging, try these steps. Place both AirPods in your charging case and let them charge for 30 seconds.
Decortweaks
decortweaks.com › why-is-your-airpods-case-not-charging-to-100-how-to-fix
Why is Your Airpods Case not Charging to 100%? (How to Fix)
November 6, 2025 - For some odd reason, the case will often refuse to play nice when it comes to charging to 100% unless your AirPods are in there, and in some cases the opposite is true. Once you dock your earbuds, they will often miraculously charge above the number it stopped at and eventually reach 100%. While it’s not a common issue, it certainly happens and you should, at the very least, attempt to eliminate it as the source of the problem by tossing your AirPods into the charging case before you plug in the case, or if you’ve already been doing that then remove your Airpods from the case and try charging it.
Apple
support.apple.com › en-ca › 119912
Charge your AirPods - Apple Support (CA)
To charge your MagSafe Charging Case or Wireless Charging Case with a Qi-certified charging mat, place your case on the charger with the status light facing up and with the lid closed. The status light should show the current charge level for 8 seconds. If you have AirPods Pro 1, AirPods Pro 2, AirPods Pro 3, AirPods 3 or AirPods 4 (ANC), you can tap the case when it's on the charging mat to determine whether your AirPods are charging (amber light) or fully charged (green light).
MacRumors
forums.macrumors.com › apple wearables › airpods
Airpods Case only charges to 70%... | MacRumors Forums
December 30, 2016 - Now I can charge both the case and headphones (while in the case) to 100%. Probably draining it out and recharging will fix this as well. Seem like a bug. ... So I've read about the case draining battery when in idle. I thought oh well maybe I would have better luck. Picked one up at Apple store yesterday. So far so good until I charged them. The airpods themselves went to 100% but the case stopped at 70% and I plugged them in all night.
iOS Hacker
ioshacker.com › home › airpods only charging up to 80 percent battery? here’s the fix
AirPods Only Charging Up To 80 Percent Battery? Here's The Fix - iOS Hacker
April 29, 2022 - First of all you will be pleased to know that your AirPods charging up to 80% or less is not a bug but it is a feature designed to keep your AirPods charging case’s battery healthy. AirPods optimized battery charging feature is standalone feature that can be activated or deactivated from AirPods Pro settings.
Apple Community
discussions.apple.com › thread › 253628026
If your AirPods case isn't charging - Apple Community
Quick Fix 3 – Reset your AirPods case- To reset the AirPods case, locate the setup button in its back. Press and hold it for 15 seconds or until the light flashes amber and then white. The case should be restored now to default, and you could try again and see if it charges.