HP Pavilion 15-ab Compatible Battery KI04 14.8V 2200mAh
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HP Pavilion 15-ab Compatible Battery KI04 14.8V 2200mAh - 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.
HP Pavilion 15-ab Compatible Battery KI04 14.8V 2200mAh - is backordered and will ship as soon as it is back in stock.
Voltage
14.8V
Amp
2200mAh
HP Pavilion 15-ab / 17-g Series — 14.8V Li-ion Replacement Battery (KI04)
This is a 14.8V, 2200mAh (32.56Wh) Li-ion replacement battery for the HP Pavilion 15-ab and Pavilion 17-g laptop series. It also covers the extended Pavilion 15-ab038TX, 15-ab024NE, and over 230 additional Pavilion variants sharing the same connector and BMS protocol. Cross-references include HSTNN-LB6S, HSTNN-DB6T, TPN-Q158 through TPN-Q163, and 800049-001 among others.
- Pavilion 15-ab and 17-g battery platform: These two series share a 14.8V four-cell Li-ion architecture with an identical connector pinout and BMS handshake. HP standardised the KI04 part number across all of them, so one cell works across the full range without any firmware workaround.
- Bench tested on actual hardware: We ran this cell on a Pavilion 15-ab unit and confirmed the BMS initialised cleanly on first boot. The charge controller accepted the cell immediately, and the BIOS battery health register updated after one completed learn cycle.
- BIOS learn cycle after installation: After fitting this battery, run the laptop from 100% down to hibernate cutoff, then charge uninterrupted to 100% before using it again. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on the Pavilion platform.
Pavilion 15-ab shutting down at 20–30% remaining after a battery swap
This is a voltage cliff problem, not a capacity problem. Under full CPU and display load, the new cell's voltage drops faster than the old EEPROM data predicts, and the system cuts power before the fuel gauge reads zero. The BMS is acting on stale calibration data from the previous cell. Run two full discharge-to-hibernate and uninterrupted charge cycles, and the fuel gauge IC recalibrates against the new cell's actual voltage curve.
Windows reporting the wrong Wh rating in battery settings after fitting this cell
The Wh figure Windows displays is pulled from the EEPROM on the battery PCB, not measured live from the cells. A new replacement cell carries its own EEPROM data, which may differ slightly from what the original unit reported. This is an EEPROM rated value versus actual chemistry difference — the cell is correct. After two full learn cycles, the Design Capacity field in Windows Battery Report should align to 32.56Wh.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: HP
- Manufacturer: CS
- Series: Standard
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My HP Pavilion 15-ab just shows 0% and "plugged in, not charging" right after I put the new battery in — what's wrong?
The fuel gauge IC on the new cell has no calibration data yet, so the BMS reports an unknown state and Windows reads 0%. This is not a fault with the cell. Plug in the AC adapter, leave it undisturbed until the charge LED turns white or off, then boot into Windows and let the gauge settle. After one full uninterrupted charge, the reading will correct itself.
The BIOS health check on my Pavilion 15-ab flags the replacement battery as "poor health" or "replace soon" straight out of the box — is the cell actually bad?
It is not bad. The HP BIOS reads health data from the EEPROM on the battery PCB and compares it against an internal reference cycle count. A brand-new cell starts with EEPROM values the BIOS treats as uncalibrated, which triggers the warning. Run one full discharge to hibernate cutoff followed by an uninterrupted charge to 100%, and the BIOS learn cycle will overwrite the stale health flag.
Charging stopped at exactly 80% and will not go higher — is this a faulty cell or something the laptop is doing?
This is a BIOS-controlled charge limit, not a battery fault. HP's Battery Care function in BIOS settings caps charging at 80% when enabled, to reduce cell stress during long periods on AC power. Go into BIOS setup (F10 at boot), navigate to Power Management, and disable Battery Care or set the charge limit to 100%. The cell will then charge to its full 32.56Wh rated capacity.
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