If your Pixel Buds A-Series are dying way before they used to, start with the charging case. These buds have a known quirk where the case sensor occasionally doesn't register them properly, so you drop them in thinking they're charging, but nothing's happening. It's the easiest thing to check and the most common cause of sudden battery drain on these specific earbuds.
Open the Pixel Buds app on your Android phone and check the battery level for each bud after they've been in the case for 15 minutes. If one or both show the same percentage they had before, they aren't making contact. Reach into each charging well with a dry finger and gently press down on the pogo pins to make sure they spring freely. Sometimes a stuck pin is all it takes.
Clean the Charging Contacts
Pull both buds out and look at the gold contacts on the stem (the flat part that rests in the case). Then inspect the two pins inside each charging well. If you see any dirt, lint, or a dull film, grab a dry microfiber cloth and wipe both surfaces. For stubborn gunk, dab a cotton swab in isopropyl alcohol (90% or higher), rub the contacts, and let everything air dry for a couple minutes before putting the buds back. This is especially common if you carry the case in a pocket or bag. Lint from fabric builds up in the wells over time and creates a thin barrier that stops charging. I've seen this fix more Pixel Buds battery complaints than any software setting.
Is Google Assistant Listening All the Time?
The Pixel Buds A-Series were built around Google Assistant integration, and they default to listening for the "Hey Google" wake word whenever they're connected. That keeps the microphones active constantly, which pulls a small but steady current from the battery. If you rarely use hands-free voice commands, turning this off adds noticeable runtime. In the Pixel Buds app, go to
Settings > Google Assistant > Hey Google and toggle it off. You can still trigger Assistant by touching and holding either bud (that's capacitive touch, not always-listening). The battery difference is real, especially if you wear the buds for long stretches.Turn Off Adaptive Sound
Adaptive Sound is the feature that auto-adjusts your volume based on the noise around you. It uses the accelerometer to detect your activity level (walking, running, sitting) and raises or lowers the volume accordingly. That sensor stays active as long as music is playing, and it adds a small drain. Open the Pixel Buds app, go to
Sound > Adaptive Sound, and switch it off. Set your volume to a fixed level you're comfortable with. You'll lose the automatic adjustment, but runtime gets a bump. This is one of those features that sounds great on paper but costs more battery than most people realize.Update the Firmware Through the Pixel Buds App
Google has shipped several firmware updates since the A-Series launched in 2021, and some of them addressed battery drain bugs. If you've never updated yours, there's a good chance you're running software that's wasting power. In the Pixel Buds app, tap the gear icon, then
More settings > Firmware update. If an update is available, make sure both buds are in the case with the lid closed and the case has at least 50% charge. The update takes about 10 to 15 minutes. Don't close the app or move your phone far from the case while it's running. If the update fails, you'll have to start over.Reset the Earbuds
If firmware is up to date and the settings are dialed back but battery life still stinks, a full reset clears out any glitched state that might be draining things. Place both buds in the charging case and leave the lid open. Press and hold the button on the back of the case for about 30 seconds. The status light will flash white, then turn off. Let go. That's a factory reset. You'll need to re-pair the buds to your phone afterward in the Pixel Buds app. Your saved settings and EQ preferences will be gone, but battery performance often returns to normal after a reset, especially if you'd been fighting with touch control glitches or charging sensor hiccups.
The Real Issue Might Be Battery Age
The Pixel Buds A-Series launched in mid-2021. If you've been using the same pair daily since then, the lithium cells inside each bud have naturally degraded. Five hours was the rating when they were new. After four years of charge cycles, three hours might be the new normal, and that's not a bug you can fix with software. Google doesn't offer out-of-warranty battery service for these buds. The cells aren't user-replaceable. If you've tried everything else and still get less than two and a half hours, the battery chemistry itself has aged out. At that point, a fresh pair is usually the practical answer. Until then, the fixes above should squeeze as much life as possible out of what's left.