FO02XL HP Chromebook 11A Replacement Battery 7.6V 4600mAh
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FO02XL HP Chromebook 11A Replacement Battery 7.6V 4600mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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.
Delivery and Shipping
Delivery and Shipping
🔹 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.
Disclaimer
Disclaimer
⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.
🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
FO02XL HP Chromebook 11A Replacement Battery 7.6V 4600mAh - is backordered and will ship as soon as it is back in stock.
Voltage
7.6V
Amp
4600mAh
HP Chromebook 11A Series — 7.6V Li-Polymer Replacement Battery (FO02XL)
This 7.6V, 4600mAh (34.96Wh) Li-Polymer battery replaces the OEM FO02XL cell in the HP Chromebook 11A lineup. It fits the Chromebook 11A-NA, 11A-NA0015WM, 11A-NA0500NA, and over 29 additional variants in the same family. All units also cross-reference part numbers L97355-005, L97353-2D1, and TPN-DB0A.
- Chromebook 11A family compatibility: Every model in this series runs the same 7.6V two-cell Li-Polymer architecture with an identical connector pinout and BMS handshake protocol. HP used a single battery platform across the entire 11A-NA range, so one cell covers all listed variants without modification.
- Bench tested on actual hardware: We cycled this cell through full charge and discharge on the Chromebook 11A platform. The BMS negotiated correctly with ChromeOS at every stage — charge acceptance, temperature monitoring, and low-voltage cutoff all triggered at expected thresholds.
- Post-install calibration on the Chromebook 11A: After fitting this cell, run one full discharge to the hibernate cutoff, then charge uninterrupted to 100%. ChromeOS carries EEPROM data from the old cell and will display inaccurate health warnings until the EC completes a fresh battery learn cycle against the new chemistry.
Why the Chromebook 11A shuts down at 20–30% after a battery swap
The embedded controller maps the discharge curve against data stored during previous cycles. A new cell has a different internal resistance profile than the aged unit it replaces. Under combined CPU and display load, the EC hits its voltage floor earlier than the fuel gauge predicts, triggering an immediate shutdown. Running two to three full discharge-to-hibernate cycles lets the EC re-learn where the actual voltage cliff sits on the new cell. After calibration, the reported percentage and the real remaining capacity align correctly.
ChromeOS reporting "unknown battery" or 0% immediately after installation
This is an EEPROM mismatch — ChromeOS reads battery identity data written by the factory to the old cell's fuel gauge IC, and the new cell starts without matching records. The EC flags the battery as unrecognised and holds the state-of-charge at 0% until it can confirm capacity. Plug in the charger and leave the device powered on for a full uninterrupted charge. Once the EC logs a complete charge cycle against the new cell, the battery identifier clears and ChromeOS displays the correct percentage.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: HP
- 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
The HP Chromebook 11A shows battery health as "poor" right after I installed the new cell — is it faulty?
It is not faulty. ChromeOS pulls health data from EEPROM records written during the old battery's service life, and the new cell has none of that history yet. The EC flags any unrecognised cell as degraded until it builds its own cycle data. Run one full discharge to automatic hibernate, then charge uninterrupted to 100% — the health warning clears once the EC completes its learn cycle.
My Chromebook 11A fuel gauge jumps around wildly for the first few days after fitting the replacement battery — why?
The fuel gauge IC calibrates its state-of-charge estimate against accumulated cycle data. With a new cell, that data does not exist yet, so voltage readings translate poorly into percentage values. The gauge stabilises after two to three full discharge and charge cycles as the IC maps the new cell's actual discharge curve. Do not rely on the percentage indicator during those first cycles — watch for the hibernate cutoff instead.
ChromeOS shows the HP Chromebook 11A battery Wh rating as lower than the spec on the replacement cell — which number is correct?
The Wh figure ChromeOS displays is read from the EEPROM on the fuel gauge IC, which still holds the rated value programmed at the factory for the original cell. The replacement cell is rated at 34.96Wh. Any discrepancy between that and what the OS reports is an EEPROM carry-over, not a capacity fault. After two full calibration cycles the reported value will converge toward the actual cell rating as the EC updates its stored data.
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