Earbuds or charging case not charging? Contacts, dead cases and power banks
One bud is at 100%, the other at 0%. Or the case light won't come on at all. Earbuds have tiny batteries and tiny contacts, so small things stop them charging.
One earbud won't charge
- Seating: make sure it clicks fully into its slot; a case cover, ear tip swapped from another set or a thick skin can lift it off the pins.
- Contacts: look at the small gold or silver pads on the bud and the spring pins in the case. Wipe them with a dry cotton bud, a soft toothbrush or a little isopropyl alcohol, and let them dry. Don't use water, metal pins or anything that can push the springs in.
- Swap test: put the bad bud in the other slot (if the shapes allow) or the good bud in the bad slot. That tells you whether the bud or the case slot is at fault.
- Reset: a confused bud sometimes reports 0% until it's reset. Follow the maker's reset steps, then re-pair.
The case itself won't charge
- Fully drained: a case left empty for weeks can take a while to wake up. Leave it on a wall charger for at least 15–30 minutes before deciding it's dead.
- Cable and port: try a different cable and look into the case's port with a torch; pocket lint packs in tightly. Remove it gently with a wooden toothpick.
- Power bank auto-off: earbud cases draw so little current that many power banks think nothing is connected and switch off after a few seconds. Use a wall charger, or the bank's low-current or trickle mode (often a double press of its button). More in power bank won't charge.
- Wireless charging: earbud cases are small and easy to place off-centre on a pad. Move it around; on a phone's reverse charging, line up the case with the middle of the phone's back.
- Temperature: a case left in a cold car or a hot window may refuse to charge until it's back at room temperature (see charging in the cold).
When the battery is simply worn
Earbud batteries are tiny, often well under 100 mAh, and after two or three years of daily use they can lose a lot of capacity. Signs: one bud dies much sooner than the other, or the case can no longer refill the buds fully. Repairs and single replacement buds are often available from the maker; don't open a swollen or damaged case yourself.
How much does charging earbuds take from a power bank?
Very little. A typical case holds a few watt-hours, so even a small 5,000 mAh power bank can refill it several times. Add earbuds alongside phones in the trip planner to see the whole picture.
Related
Clean a lint-packed charging port · "Moisture detected" in the phone charging port · Bluetooth headphones keep disconnecting · USB-C cables explained · Power bank mAh vs Wh · Why phones stop at 80% overnight
Questions
Why is one of my earbuds not charging in the case?
Most often earwax or lint on the bud's charging pads or the pins in the case, or the bud isn't fully seated. Clean both with a dry cotton bud or a little isopropyl alcohol, reseat it, and reset the earbuds if it still shows 0%.
Why won't my earbuds case charge from a power bank?
Earbud cases draw very little current, so many power banks decide nothing is plugged in and switch off. Use a wall charger or the power bank's low-current mode.
How long does a dead earbuds case take to show a light?
A fully drained case can take several minutes, sometimes up to around half an hour, before its light responds. Leave it on a wall charger before assuming it's broken.
Can I clean earbud charging contacts with alcohol?
Yes, a small amount of isopropyl alcohol on a cotton bud is fine for the metal contacts. Avoid water, soaking, and metal tools that can bend the spring pins.
Published · updated .