HP Pavilion 11 Replacement Battery 11.1V 2200mAh KP03
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HP Pavilion 11 Replacement Battery 11.1V 2200mAh KP03 - 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 11 Replacement Battery 11.1V 2200mAh KP03 - is backordered and will ship as soon as it is back in stock.
Voltage
11.1V
Amp
2200mAh
HP Pavilion 11 / Pavilion Touchsmart 11 Series — 11.1V Li-ion Replacement Battery (KP03 / 729892-001)
This is an 11.1V, 2200mAh (24.42Wh) Li-ion cell for the HP Pavilion 11 and Pavilion Touchsmart 11 notebook range. It covers the standard Pavilion 11, Touchsmart 11-E, and 11-E000 sub-series, along with a wide spread of OEM part numbers including HSTNN-DB5P, HSTNN-YB5P, and TPN-C112. Install it when the original cell no longer holds a usable charge or fails to register with the BIOS.
- Pavilion 11 and Touchsmart 11 series fit: These models share the same 11.1V three-cell bus, connector pinout, and BMS handshake protocol. The BIOS negotiates charge authority with the cell over the SMBus line — the connector and communication layer here match what HP built into the Pavilion 11 board revision.
- Bench tested on actual hardware: We cycled this cell on a Pavilion 11 board and confirmed the BMS accepted the EEPROM data without fault codes. Charge current ramped correctly from CC to CV, and the cell held voltage above the BMS low-cutoff threshold through full discharge.
- First-cycle calibration on Pavilion 11: After fitting, run the laptop off battery power until it hibernates on empty — do not interrupt. Then charge to 100% without unplugging mid-cycle. This lets the BIOS fuel gauge IC re-learn the cell's actual capacity curve and clears the false "poor battery health" warning that appears after every cell swap.
BIOS reporting battery health as poor immediately after fitting a new cell
The HP Pavilion 11 BIOS reads health data stored in the cell's EEPROM and compares it against its own logged discharge history. A new cell arrives with factory EEPROM values that don't match the board's accumulated charge cycle data — the mismatch triggers a health warning even though the cell is new. This is not a fault with the replacement cell. Run one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100%, and the BIOS learn cycle will overwrite the stale data. After two to three calibration cycles, the health status normalises.
Pavilion 11 shutting down at 20–30% charge shown on screen
This happens when the fuel gauge IC still holds calibration data from the old, degraded cell. Under full CPU and display load, the new cell's actual voltage-versus-capacity curve doesn't match the stored model — the system reads the voltage drop as critically low and triggers an emergency shutdown. The gauge isn't wrong about voltage; it's wrong about where that voltage sits on the charge curve. Run two complete discharge-to-hibernate then full-charge cycles, and the fuel gauge IC will re-map its model against the new cell — shutdowns at false percentages stop once calibration completes.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: HP
- Manufacturer: CS
- Series: Standard
- Color: Silver
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
HP Pavilion 11 shows "0% available (plugged in, charging)" and never moves — what's happening?
The fuel gauge IC is reading EEPROM data from the old cell and can't reconcile it with the new cell's chemistry signature. The charge current is flowing — the percentage display is simply frozen on a stale map. Disconnect the charger, run the laptop on battery until it hibernates, then charge uninterrupted to 100%. After that first full cycle the gauge resets its zero-reference and the percentage will update normally.
Windows is showing 24Wh capacity in Battery Report but the product listing shows 24.42Wh — is this cell underspec?
No. Windows pulls the Wh figure from the cell's EEPROM, which stores a rated design capacity value set at the factory. That figure rounds differently depending on how the cell manufacturer encoded the data versus the calculated voltage-times-amp-hour figure on the listing (11.1V × 2200mAh = 24.42Wh). The two numbers describe the same cell — one is raw calculation, one is encoded EEPROM output. No action needed; the discrepancy is a reporting artefact, not a capacity shortfall.
New battery fitted, Pavilion 11 charges to 80% then stops — charger light stays on but percentage won't climb further
HP's BIOS on several Pavilion 11 board revisions ships with a Battery Care function enabled by default, which caps charging at 80% to reduce long-term cell wear. This is firmware behaviour, not a fault with the replacement cell. Open HP Support Assistant or go to BIOS Setup (F10 at boot) and look for Battery Care Mode or Adaptive Battery Optimizer — disable it. Once turned off, charge the laptop to 100% to confirm the cap is cleared.
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