Compaq Presario B1200 Replacement Battery 14.4V 2200mAh
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Compaq Presario B1200 Replacement Battery 14.4V 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.
Compaq Presario B1200 Replacement Battery 14.4V 2200mAh - is backordered and will ship as soon as it is back in stock.
Voltage
14.4V
Amp
2200mAh
Compaq Presario B1200 Series — 14.4V Li-ion Replacement Battery (454001-001)
This 14.4V 2200mAh Li-ion cell replaces the original battery in the Compaq Presario B1200 notebook line. It fits the Presario B1200, B1202VU, B1223TU, B1255TU, and over 107 additional B1200-series variants. OEM cross-references include 447649-251, HSTNN-DB53, HSTNN-OB53, and 447649-321.
- B1200 series compatibility: Every model in this line runs the same 14.4V four-cell architecture with an identical connector pinout and BMS communication protocol — one cell fits the full range without modification.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on a B1200-class board, confirmed the BMS handshake completed cleanly, and verified the protection circuit trips correctly at low-voltage cutoff without locking the pack.
- BIOS learn cycle after install: After fitting this cell, run the laptop down to hibernate cutoff on battery only — no AC — then charge uninterrupted to 100%. This forces the BIOS to relearn the cell's actual capacity range and clears the inaccurate health warning that appears after every cell swap on this platform.
Why the Presario B1200 shuts down at 20–30% after a battery swap
The B1200's BIOS retains the charge curve data from the old, degraded cell. When a new cell is installed, the fuel gauge IC still references that stale curve. Under full CPU and display load, the board sees a voltage that matches its old "empty" threshold and triggers an emergency shutdown — even though the new cell has capacity remaining. The fix is one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100%, which overwrites the stored curve. After two or three full cycles the reported percentage stabilises.
BIOS reporting battery as unknown or 0% capacity on first boot
This happens because the EEPROM data embedded in the replacement cell does not exactly match the Wh rating the BIOS logged for the original pack. The system flags the mismatch as an unrecognised battery rather than treating it as a fresh cell. Boot into the BIOS, navigate to the power or battery information screen, and confirm the cell is detected — if it shows 0% but is drawing charge current, the hardware connection is fine. Run the full learn cycle described above and the BIOS will rewrite its reference data against the new cell's actual output.
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 Presario B1200 shuts off suddenly when the gauge still shows 25% — is this a faulty cell?
The cell is almost certainly fine. The B1200's fuel gauge IC calibrated itself against the old, worn cell and still uses that degraded voltage curve as its "empty" reference point. Under CPU and display load the new cell hits a voltage the board interprets as flat, and the system cuts power to protect itself. Run one full discharge to hibernate cutoff on battery only, then charge uninterrupted to 100% — after that cycle the shutdown threshold resets to match the new cell.
Windows is showing the wrong Wh rating for this battery — it says 28Wh but the cell is rated 31.68Wh. Is something wrong?
Nothing is wrong with the hardware. The EEPROM data written into the replacement cell carries a rated Wh figure based on the cell chemistry at factory specification, while Windows reads the value the old pack last reported and compares it against what the new cell broadcasts. The mismatch is a data conflict, not a capacity fault. After two full charge and discharge cycles the fuel gauge IC recalibrates and the reported figure converges toward the actual 31.68Wh rating.
The laptop charges to 80% and then just stops — AC stays connected but the percentage won't move.
This is a BIOS-controlled charge limit, not a cell fault. Some Compaq B1200 units ship with a battery care setting enabled in the BIOS that caps charging at 80% to reduce cell stress during long periods on AC power. Boot into the BIOS setup utility, locate the Battery or Power Management section, and disable the charge threshold or set the upper limit to 100%. If no such setting exists, run the full discharge-to-hibernate learn cycle — on some firmware versions the 80% cap clears automatically once the BIOS logs a complete cycle from the new cell.
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