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A41-X550 Asus X450 Replacement Battery 14.4V 2200mAh

Up to 17% off
New arrival
From $95.99 USD $115.99
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Fits Asus X450, X450V, X450VB, X450VC and 162+ models; replaces OEM part A41-X550 and A41-X550A.
14.4V, 2200mAh lithium-ion pack delivers 31.68Wh to sustain full-load runtime on Asus X450 series laptops.
Connector seats into the original battery slot with mechanical locking tab; orientation is keyed to prevent reverse insertion.
We bench-tested this cell against an aged X450 unit; BMS accepted the charge handshake and held stable voltage under sustained CPU and GPU draw.
After installation, run one full discharge to hibernation cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears inaccurate health warnings that appear after cell swap.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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Check that your old battery model number and device model to match our description. This makes sure they work together.

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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

🔹 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: 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.

Voltage

14.4V

Amp

2200mAh

Asus X450 / X450V Series — 14.4V Li-ion Replacement Battery (A41-X550)

This 14.4V, 2200mAh Li-ion battery replaces the A41-X550 and A41-X550A cells used across the Asus X450, X450V, X450VB, X450VC, and over 160 additional X450-series models. It restores unplugged operation to laptops where the original cell no longer holds charge or has failed entirely. Voltage, connector, and physical dimensions match the OEM specification.

  • X450 series compatibility: All models in this line share the same 14.4V rail, four-cell configuration, and A41-X550 connector pinout. The BMS handshake protocol is identical across the X450V, X450VB, and X450VC variants, so one cell covers the full range without modification.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on X450-series hardware. The BMS accepted the new cell without rejection events, charge termination triggered cleanly at full voltage, and protection cutoffs activated correctly at the low-voltage threshold.
  • Post-install calibration on X450 models: After fitting, run the laptop down to hibernate cutoff on battery only — no AC during the discharge. Then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on X450 hardware.

Why the X450 BIOS flags a new battery as poor health immediately after swap

The X450 BIOS stores learned capacity data in EEPROM tied to the previous cell. When a new cell goes in, the BIOS compares actual readings against that stale data and flags a mismatch as degraded health. This is a firmware read error, not a fault with the replacement cell. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the BIOS to rewrite its learned values against the new cell's actual capacity curve.

X450 shutting down at 20–30% charge shown on screen

This happens when the fuel gauge IC has not yet calibrated against the new cell's discharge curve. The percentage shown is based on old EEPROM data, so the reported figure and the actual remaining cell voltage diverge sharply under load — CPU plus display draw pulls the cell voltage below the BMS cutoff while the gauge still reads 20–30%. Two to three full discharge-and-charge cycles recalibrate the fuel gauge IC and bring the on-screen percentage in line with actual cell state. After calibration, the laptop should reach a stable cutoff near 10–12% shown, not a sudden shutdown in the 20–30% range.

Compatible Models

X450 X450V X450VB X450VC X450VE A450 A450C A450CA A450CC A450L A450LA A450LB A450LC A450V A450VB A450VC A450VE A550 A550C A550CA A550CC A550L A550LA A550LB A550LC A550V A550VB A550VC F450 F450C F450CA F450CC F450L F450LA F450LB F450LC F450V F450VB F450VC F450VE F550 F550C F550CA F550CC F550E F550EA F550L F550LA F550LB F550LC F550V F550VB F552 F552C F552CL F552E F552EA F552EP F552V F552VL K450 K450C K450CA K450CC K450L K450LA K450LB K450LC K450V K450VB K450VC K450VE K550 K550C K550CA K550CC K550JD K550L K550LA K550LB K550LC K550V K550VB K550VC K551LB K551LN P450 P450C P450CA P450CC P450L P450LA P450LB P450LC P450V P450VB P450VC P550 P550C P550CA P550CC P550L P550LA P550LAV P550LC P550LD P551CA R409 R409C R409CA R409CC R409L R409LA R409LB R409LC R409V R409VB R409VC R409VE R510 R510C R510CA R510CC R510D R510DP R510E R510EA R510L R510LA R510LB R510LC R510V R510VB R510VC X450C X450CA X450CC X450CP X450E X450EA X450EP X450L X450LA X450LB X450LC X450VP X452 X452C X452CP X452E X452EA X452EP X550 X550C X550CA X550CC X550CL X550E X550LB X550LC X550LD X550VB X550VC X552CL X552LD X552LDV

Replaces Part Numbers

A41-X550 A41-X550A

Technical Specifications

Voltage14.4V
Amp Hours2200mAh
Capacity2200mAh
Rate31.68Wh
Net Weight218.4g /7.70 oz
Gross Weight488.4g /17.23 oz
Approximate Weight488.4g /17.23 oz
Dimension 267.50 x 36.34 x 20.86mm

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

Windows shows the new battery as 0% and won't charge — is the cell dead on arrival?

This is almost always a stale EEPROM read from the previous cell, not a dead cell. The X450 BIOS holds capacity data from the old battery and can report 0% or "unknown" until it re-learns the new cell. Plug in AC, leave the laptop on charge for at least 30 minutes without interrupting it, then check again. If the percentage still shows 0%, power cycle the laptop with AC connected and allow the BIOS to re-detect the battery on boot.

The battery info screen shows 31Wh but my old battery was rated higher — did I get the wrong cell?

The Wh figure shown in system info is read from the cell's EEPROM, which stores the rated chemistry value of 31.68Wh for this A41-X550 cell. If your previous battery was a higher-capacity aftermarket cell, it would have carried a different EEPROM value — the hardware is the same, the stored rating differs. This is an EEPROM data difference, not a compatibility mismatch. Confirm the part number printed on the cell matches A41-X550 or A41-X550A and the connector seats fully — those are the two checks that matter.

Charge stops at 80% and won't go higher after the replacement — what's blocking it?

The X450 BIOS includes a firmware-controlled charge limit that caps charging at 80% when a battery health or conservation mode setting is active. This is a BIOS setting, not a fault with the replacement cell. Go into the Asus Battery Health Charging utility or the BIOS power settings and switch the charge mode from "Balanced" or "Maximum Lifespan" to "Full Capacity." After saving and rebooting, charging should continue through to 100%.

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