Compaq Mini CQ10 Replacement Battery 10.8V 4400mAh
This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.
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Compaq Mini CQ10 Replacement Battery 10.8V 4400mAh - 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.
Compaq Mini CQ10 Replacement Battery 10.8V 4400mAh - is backordered and will ship as soon as it is back in stock.
Voltage
10.8V
Amp
4400mAh
Compaq Mini CQ10-800LA LTNA — 10.8V Li-ion Replacement Battery (614873-001)
This is a 10.8V, 4400mAh (47.52Wh) Li-ion replacement battery for the Compaq Mini CQ10 netbook series. It fits the Mini CQ10-800LA LTNA, Mini CQ10-811LA LTNA, Mini CQ10-600LA, and over 20 additional CQ10 variants sharing the same connector and BMS handshake. Cross-reference OEM part numbers 614873-001, HSTNN-IB1Y, or 629835-001 to confirm your exact unit.
- CQ10 series compatibility: These models share a common 10.8V three-cell Li-ion configuration, identical 630-series and HSTNN connector pinout, and the same BMS authentication protocol — which is why one cell works across all listed variants without firmware conflicts.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a CQ10 unit, confirmed BMS communication across the SMBus data lines, and verified the charge controller accepted the cell without triggering a protection fault or authentication error.
- BIOS learn cycle after install: After fitting this cell, run the netbook on battery until it hibernates at low-voltage cutoff, then charge uninterrupted to 100% before unplugging. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on CQ10 units.
CQ10 shutting down at 20–30% remaining after battery swap
This happens because the BIOS fuel gauge IC is still calibrated to the old cell's discharge curve. The new cell has different impedance characteristics, so the voltage-to-capacity mapping is wrong until it learns the new cell. Under combined CPU and display load, voltage sags faster than the uncalibrated gauge expects, triggering an emergency cutoff before the displayed percentage reaches zero. One full discharge-to-hibernate cycle followed by a complete uninterrupted charge corrects the mapping.
BIOS reporting wrong Wh rating in system information after replacement
The Wh figure shown in BIOS or Windows battery report is read from EEPROM data embedded in the battery pack, not calculated live from the new cell's chemistry. If the replacement cell's EEPROM reports a rated figure that differs from the original, Windows will display a mismatched design capacity — this does not reflect actual stored energy. The fuel gauge will recalibrate the usable capacity over two to three full charge-discharge cycles. After calibration, check the full-charge capacity value in a battery reporting tool — it should read close to 47.52Wh.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Compaq
- 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 CQ10 shows 0% or "unknown" battery in Windows right after I installed the new cell — is the battery faulty?
It is not faulty. The fuel gauge IC on the CQ10 motherboard reads state-of-charge from EEPROM data on the old cell and has no baseline for the new one yet. Windows reports 0% or unknown until the IC establishes a reference point. Plug in the charger, let it charge to 100% uninterrupted, then run one full discharge to hibernate cutoff — after that cycle the gauge has enough data to report accurately.
The CQ10 charges fine but the battery percentage jumps around wildly — it reads 60%, then 80%, then drops to 40% within minutes.
The fuel gauge IC needs calibration cycles against the new cell's actual voltage-discharge curve. Until it has that data, it interpolates erratically from stale EEPROM values left by the old cell. Run two to three full discharge-to-hibernate then charge-to-100% cycles without interrupting either phase. After the third cycle the gauge stabilises — if it is still jumping by more than 10%, check that the SMBus data pin on the battery connector is making clean contact and is not bent.
The CQ10 stopped charging above 80% after a BIOS update — did the update brick the battery?
This is a BIOS-controlled charge limit, not a battery fault. Some HP and Compaq BIOS updates activate a battery care charge threshold that caps charging at 80% to reduce cell stress. The battery itself is functioning correctly. Go into BIOS setup (F10 at boot), look for a Battery Care or Adaptive Charging option under the Power menu, and set it to Full Charge — save and exit, then verify charging resumes past 80%.
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