Apple AirPods 3 Charging Case Compatible Battery 3.8V 370mAh
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Apple AirPods 3 Charging Case Compatible Battery 3.8V 370mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
🔹 Getting Started
Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.
🔹 Keep It Healthy
Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.
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🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.
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Disclaimer
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Apple AirPods 3 Charging Case Compatible Battery 3.8V 370mAh - is backordered and will ship as soon as it is back in stock.
Voltage
3.8V
Amp
370mAh
Apple AirPods 3 Charging Case — 3.8V Li-Polymer Replacement Battery (A2793)
This is a 3.8V, 370mAh Li-Polymer battery for the Apple AirPods 3 Charging Case (model A2793). It replaces the internal cell that powers the case itself — not the earbuds. When the case battery degrades, the case can no longer recharge the earbuds away from mains power.
- AirPods 3 case specific: The A2793 case uses a compact Li-Polymer cell at 3.8V nominal to run the case charging circuit and lid-open detection. A degraded cell causes the case to drop charge rapidly even when the earbuds sit idle inside.
- Bench tested on actual hardware: We cycled this cell through the A2793 case charging circuit and confirmed the BMS accepted the new pack without error, with the case LED responding correctly to charge state across multiple earbud cycles.
- Wireless charging coil load: If your case supports MagSafe or Qi charging, that wireless coil draws from this same cell. A worn cell struggles more under wireless input than wired — replace before switching back to wireless charging.
Why the AirPods 3 case shows full charge but drains before the earbuds finish charging
Li-Polymer cells in small cases like the A2793 lose usable capacity unevenly. The fuel gauge reads voltage, not true capacity — so a degraded cell can sit at 3.8V and report "full" while holding far less energy than rated. Under earbud charging load, voltage drops sharply and the circuit cuts out early. After fitting a fresh 370mAh cell, run one full charge-to-empty cycle to let the case calibrate its gauge correctly.
Case LED flashing amber continuously after battery replacement
Continuous amber on the status LED usually means the case battery dropped below the BMS recovery threshold during storage — typically under 3.0V. The protection circuit locks output until the cell is trickle-charged back above that floor. Connect the case to a wired charger for at least 20 minutes before opening the lid or placing earbuds inside. Once the cell stabilises above 3.2V, the BMS releases and normal charging resumes.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Apple
- Manufacturer: CS
- Series: Standard
- Color: Black
- Product Type: Li-Polymer
- Battery Type: Li-Polymer
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My AirPods 3 case shows full charge on the LED but the earbuds are dead after a few hours in the case — what's happening?
The case LED reads cell voltage, not true capacity. A degraded A2793 cell sits at a normal open-circuit voltage but collapses under earbud charging load, delivering far less than the rated 370mAh. The earbuds stop charging mid-cycle because the case cell is exhausted, not because of a software fault. Replace the case battery and run one full wired charge cycle before relying on it away from mains power.
The case won't charge the earbuds at all after I replaced the internal battery — the LED just blinks and stops.
This is a BMS re-initialisation issue. If the replacement cell arrived below 3.0V, the protection circuit blocks output entirely until the cell recovers. Plug the case into a wired charger and leave it for 20–30 minutes without placing the earbuds inside. Once the cell voltage climbs above 3.2V, the BMS releases the lock and the charging circuit resumes normally.
The case gets noticeably warm when I charge it wirelessly — is that a battery problem?
Wireless charging draws from the A2793 cell while simultaneously managing the coil input, which creates more heat in a small housing than wired charging does. A cell that has lost capacity handles that combined load less efficiently, generating more heat per cycle. If the warmth is new or has increased, the cell is likely below its rated capacity. Switch to wired charging and measure how many full earbud cycles the case delivers — if it's fewer than two, the cell needs replacing.
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