Lenovo ThinkPad X1 Carbon 2016 Replacement Battery 00HW028 15.2V
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Lenovo ThinkPad X1 Carbon 2016 Replacement Battery 00HW028 15.2V - 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.
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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 X1 Carbon 2016 Replacement Battery 00HW028 15.2V - is backordered and will ship as soon as it is back in stock.
Voltage
15.2V
Amp
3300mAh
Lenovo ThinkPad X1 Carbon 2016 — 15.2V Li-Polymer Replacement Battery (00HW028)
This 15.2V, 3300mAh (50.16Wh) lithium-polymer battery replaces the original cell in the ThinkPad X1 Carbon 2016 and related X1 Carbon and X1 Yoga variants. It matches the OEM voltage rail and connector used across the 2016 generation ultrabook chassis. Drop-in fitment requires no tools beyond the base panel screws.
- X1 Carbon and X1 Yoga 2016 platform fit: These models share the same 15.2V four-cell Li-Polymer architecture, battery connector pinout, and BMS handshake protocol — which is why a single cell covers both the Carbon and Yoga variants from this generation.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a ThinkPad X1 Carbon 2016 unit. The BMS handshake completed without fault codes, charge current tapered correctly at capacity, and the BIOS recognised the cell without a firmware warning on a post-cycle learn pass.
- BIOS learn cycle after installation: After fitting this cell, run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on ThinkPad X1 hardware.
BIOS reporting battery health as poor after replacement
The ThinkPad BIOS reads health data from the battery's EEPROM, which stores charge history and cycle count from the previous cell. A new cell arrives with a blank or mismatched EEPROM state, so the BIOS flags it as degraded even though the cell is new. This is not a fault with the replacement — it's a firmware calibration issue. Running the full discharge-to-cutoff and uninterrupted recharge cycle described above writes fresh data to the learn register and resolves the warning.
Laptop shuts down at 20–30% charge shown on screen
This happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The displayed percentage is based on the old cell's profile, so the laptop hits the low-voltage cutoff threshold while the gauge still reads 20–30%. After two to three full discharge-and-charge cycles, the fuel gauge IC re-maps its readings to the new cell. If shutdowns persist after three cycles, check that the resting cell voltage reads above 15.0V before starting a charge cycle.
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 X1 Carbon shows the new battery as "Unknown" in Lenovo Vantage — is the cell faulty?
No. Lenovo Vantage reads the battery's EEPROM for identification data, and a replacement cell arrives with a blank or factory-default EEPROM state that Vantage doesn't recognise. Run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. That BIOS learn cycle writes the identification handshake and clears the unknown status.
The battery percentage jumps around wildly for the first few days after fitting — what causes that?
The fuel gauge IC inside the ThinkPad calibrates its readings against the specific voltage curve of whichever cell is installed. After a swap, it's still working off the old cell's profile, which causes erratic percentage jumps. Run two to three full discharge-and-recharge cycles to let the IC re-map against the new cell's actual curve. After the third cycle, the gauge should track within a few percent of real remaining capacity.
My replacement cell stops charging at exactly 80% and won't go higher — is something wrong with the battery?
This is a BIOS-controlled charge limit, not a battery fault. Lenovo's ThinkPad firmware includes a battery conservation mode that caps charging at 80% to reduce cell stress — it's toggled in Lenovo Vantage under Power → Battery Charge Threshold. Open Vantage, set the charge stop threshold to 100%, and the cell will charge to full on the next cycle.
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