Lenovo ThinkPad Yoga 14 14.8V Replacement Battery SB10F46439
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Lenovo ThinkPad Yoga 14 14.8V Replacement Battery SB10F46439 - 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.
Lenovo ThinkPad Yoga 14 14.8V Replacement Battery SB10F46439 - is backordered and will ship as soon as it is back in stock.
Voltage
14.8V
Amp
3750mAh
Lenovo ThinkPad Yoga 14 — 14.8V Li-Polymer Replacement Battery (SB10F46439)
This 14.8V, 3750mAh Li-Polymer battery replaces the original cell in the ThinkPad Yoga 14 and ThinkPad S3 Yoga convertible laptops. It cross-references OEM part numbers SB10F46439, 00HW001, 00HW000, and SB10F46438. Capacity is 55.5Wh, matching the original specification.
- ThinkPad Yoga 14 and S3 Yoga compatibility: Both the Yoga 14 and S3 Yoga run the same 14.8V battery bus with identical connector pinouts and BMS handshake protocol. The same cell fits both lines without modification.
- Bench tested on actual hardware: We ran this cell on a ThinkPad Yoga 14 and confirmed the BMS negotiated correctly at first boot. The BIOS recognised the battery and reported voltage within normal range. No charge rejection on initial cycle.
- Post-install calibration on ThinkPad Yoga 14: After fitting, run the laptop down to hibernate cutoff on battery power, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap.
BIOS reporting battery health as poor after replacement
The ThinkPad BIOS stores battery health data from the previous cell in its firmware. When a new cell is installed, that old data does not auto-clear — so the BIOS flags health as poor even with a fresh battery. Run one complete discharge-to-hibernate cycle followed by a full uninterrupted charge. This forces the battery learn cycle to re-establish baseline capacity against the new cell and clears the warning on the next boot.
Laptop shutting down at 20–30% remaining after battery swap
This happens because the fuel gauge IC is still calibrated to the old, degraded cell. Under full CPU and display load, the new cell's voltage drops faster than the IC expects, triggering a low-voltage shutdown before the displayed percentage reaches zero. The gauge needs two to three full discharge-and-charge cycles to re-map voltage curves against the new cell's actual capacity. After the third full cycle, the shutdown point should align with the displayed percentage accurately.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Lenovo
- 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 ThinkPad Yoga 14 shows "Battery Unknown" in Windows after fitting the new cell — is the battery faulty?
The EEPROM data from the old cell is still cached in the system firmware, so Windows reports the new cell as unknown until the learn cycle runs. Discharge the laptop fully to hibernate cutoff, then charge uninterrupted to 100% without using it. After one complete cycle, the BIOS resets its battery record and Windows will display the correct status on the next boot.
The system info screen shows the wrong Wh rating for this battery — it lists something different from 55.5Wh.
The Wh figure shown in system info pulls from EEPROM data embedded in the battery controller, which may reflect the rated chemistry value rather than the actual cell specification. This is a firmware reporting difference, not a capacity fault — the cell still delivers its full 55.5Wh. Confirm the actual voltage at the connector reads 14.8V nominal and run one full calibration cycle; the reported value may update once the BIOS completes its learn cycle.
New battery charges but stops before reaching 100% — it caps out around 80% every time.
Lenovo ThinkPad firmware includes a BIOS-controlled charge threshold feature that limits charging to 80% to reduce long-term cell stress. This is not a fault with the replacement cell. Open Lenovo Vantage (or ThinkPad Power Manager on older builds), navigate to Battery settings, and set the charge threshold to 100% — the battery will then charge to full on the next cycle.
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