Asus A41N1308 Replacement Battery 14.4V 2200mAh
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Asus A41N1308 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.
Asus A41N1308 Replacement Battery 14.4V 2200mAh - is backordered and will ship as soon as it is back in stock.
Voltage
14.4V
Amp
2200mAh
Asus X551C / X551CA Series — 14.4V Li-ion Replacement Battery (A41N1308)
This is a 14.4V, 2200mAh Li-ion replacement battery for the Asus X551C and X551CA notebook series. It fits the full X551C line, including the X551CA-0051A2117U and X551C-SX014H variants. Cross-referenced OEM part numbers include A41N1308, A31N1319, A31N1308, and YU12008-13007D.
- X551C/X551CA platform fitment: These models share a common battery bay geometry, connector pinout, and BMS handshake protocol. The same 14.4V cell chemistry runs across the whole X551 sub-series, which is why a single part number covers the full range.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on X551CA hardware. The BMS initialised correctly, the charge controller accepted the cell without fault codes, and voltage held steady across the full discharge curve.
- Post-install calibration on the X551C: After fitting this battery, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after a cell swap on this platform.
BIOS reporting poor battery health immediately after fitting the A41N1308
The X551C BIOS reads health data from the EEPROM embedded in the battery pack. A new cell ships with reset EEPROM counters that do not match the learned data from the old pack — so the BIOS flags the battery as degraded even though it is new. This is a data mismatch, not a hardware fault. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the BIOS to rewrite its learned cycle data against the new cell. After two to three cycles the health percentage normalises.
X551CA shuts down between 20–30% charge shown on screen
This is a voltage cliff symptom. When the X551CA is running the CPU and display at full load, current draw pulls the cell voltage below the BMS cutoff threshold faster than the OS fuel gauge updates — so the shutdown happens before the percentage reaches zero. The fuel gauge IC has not yet calibrated its discharge curve against the new cell's actual chemistry. Complete two or three full discharge cycles to hibernate-cutoff, then full recharge, to let the fuel gauge IC map the real voltage curve. After calibration, shutdowns below 20% shown will stop.
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 X551C BIOS shows the new battery as "unknown" or 0% right after install — is the cell faulty?
Not faulty. The BIOS reads identity and capacity data from the battery's EEPROM, and a fresh cell ships with counters the system hasn't seen before — so it flags the pack as unknown. Run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. That single learn cycle rewrites the BIOS health data against the new cell and clears the unknown status.
The battery percentage on my X551CA jumps around wildly — it reads 60%, then drops to 15% in minutes without heavy use.
The fuel gauge IC inside the battery pack needs several full discharge-and-charge cycles to map its voltage curve against the new cell's actual chemistry. Until it does, the percentage readings are estimates based on the old cell's profile and will swing unpredictably. Run three complete discharge-to-hibernate, then full-charge cycles without pulling the plug mid-charge. By the third cycle the readings stabilise to within a few percent of actual charge level.
My X551C stops charging at around 80% and the charge light goes off — nothing I do gets it past that point.
This is a BIOS-controlled charge limit, not a battery fault. Asus laptops on this platform include a battery care setting in BIOS (sometimes labelled "Battery Health Charging") that caps charge at 80% to reduce long-term cell wear. Enter BIOS setup at boot, locate the Battery Health Charging option under the Advanced or Power menu, and set it to Full Capacity Mode. Save and reboot — the battery will then charge to 100%.
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