Asus VivoBook X200CA Replacement Battery A31N1302 11.25V
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Asus VivoBook X200CA Replacement Battery A31N1302 11.25V - 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.
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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
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Asus VivoBook X200CA Replacement Battery A31N1302 11.25V - is backordered and will ship as soon as it is back in stock.
Voltage
11.25V
Amp
2900mAh
Asus VivoBook X200CA / F200CA / X200MA — 11.25V Li-ion Replacement Battery (A31N1302)
This is an 11.25V, 2900mAh (32.63Wh) Li-ion cell for the Asus VivoBook X200CA, F200CA, and X200MA series. It replaces OEM part numbers A31N1302, 0B110-00240100E, A31LMH2, A31LM9H, and A31LM2H. The connector and BMS communication protocol match the original Asus battery controller on these boards.
- X200CA / F200CA / X200MA compatibility: These three models share the same 11.25V three-cell series configuration, identical connector pinout, and the same SMBus BMS handshake — one cell fits all three without modification or adapter.
- Bench tested on actual hardware: We ran this cell on an X200CA board and confirmed the BMS completed a full charge cycle to 11.25V, reported correct state-of-charge to the EC, and tripped no protection flags during a load discharge to the low-voltage cutoff threshold.
- Post-install calibration on X200CA: After fitting this cell, run the laptop down to hibernate-cutoff on battery only — no charger — then charge uninterrupted to 100%. This forces the Asus BIOS battery learn cycle to reset against the new cell and clears the inaccurate health warning that appears after every cell swap on this platform.
BIOS reporting battery health as poor after fitting a new cell on X200CA
The X200CA BIOS reads EEPROM data written by the original cell over its lifetime. When a new cell arrives, that stored cycle count and degradation history does not match the fresh chemistry. The BIOS flags the mismatch as a fault. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the firmware to rewrite that data against the new cell. After two to three cycles the health indicator returns to normal.
VivoBook X200CA shutting down at 20–30% charge shown on screen
This usually happens when an aged cell can no longer hold voltage under combined CPU and display load — the cell voltage drops below the EC's cutoff threshold before the fuel gauge reads zero. The fuel gauge IC calibrated itself to the old cell's degraded capacity, so the percentage shown does not reflect the real remaining voltage curve. A full discharge-to-shutdown followed by a full charge resets the fuel gauge IC against the new cell's actual curve. After two calibration cycles, shutdown should not occur above 5–8% indicated charge.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Asus
- 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
The Asus VivoBook X200CA shows 0% or "plugged in, not charging" straight after fitting this battery — what's wrong?
The fuel gauge IC on the X200CA board has not yet calibrated against the new cell's chemistry, so it reads the state-of-charge as zero or refuses to begin a charge cycle. Disconnect the AC adapter, hold the power button for 15 seconds to drain residual board voltage, then reconnect and charge uninterrupted. If the issue persists, enter the Asus BIOS, navigate to Advanced → Battery Health Charging, set it to Full Capacity Mode, save, and reboot — this clears any firmware-level charge restriction that can block the first cycle on a new cell.
Windows is showing 28Wh capacity in Device Manager but the battery spec says 32.63Wh — is the cell faulty?
This is an EEPROM reporting difference, not a cell fault. The rated Wh value stored in the old battery's EEPROM does not match the new cell until the firmware recalculates it from an actual charge-discharge cycle. Run one full discharge to hibernate-cutoff, then charge to 100% without interruption. Windows will pull the recalculated figure from the EC on the next boot — the reported Wh should update to within 1–2Wh of 32.63Wh.
The battery percentage on the X200CA jumps erratically — drops from 60% to 15% in minutes then recovers — what causes that?
The fuel gauge IC on the X200CA uses a history of the previous cell's internal resistance to predict remaining capacity. A new cell has significantly lower internal resistance, so the IC's predictions are wildly off for the first few cycles. This is not a BMS fault or a wiring issue. Complete three full discharge-to-hibernate and uninterrupted charge-to-100% cycles — by the third cycle the IC recalibrates its resistance model and the percentage readings stabilise.
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