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Asus X543BA Battery for VivoBook F540BP, K540UV and R540NA Original price was: $49.99.Current price is: $24.99.
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Asus X441 Replacement Battery for VivoBook Series Original price was: $49.99.Current price is: $24.99.

Asus X540UA Replacement Battery for X540 Series

225 in stock

SKU: AS-X540UA

Original price was: $77.99.Current price is: $38.99.

Replacement battery for Asus X540, X540L, and X540LA series laptops.

  • ๐Ÿ”‹ Voltage: 10.8V ยท Capacity: 33Wh / 2900mAh ยท Type: 3-Cell Li-ion
  • ๐Ÿ”„ Replaces: 3ICR19, A31-N1519, A31N1519, A540, A540L, A540LA, F540LA, F540LJ, F540SA โ€” view the complete list in the description below

225 in stock

  • Fast & Free Shipping
  • Money-Back Guarantee
  • 12 Months Warranty
  • Safe and Secure SSL Checkout

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Description

Picture yourself settling into your window seat, laptop open, ready to finish that important presentation during your flight, only to see the dreaded low battery warning flash across your screen. The Asus X540UA replacement battery delivers reliable 10.8V power with 33Wh capacity to keep your laptop running when you need it most. This 3-cell Li-ion battery is specifically designed for X540, X540L, and X540LA laptops, providing dependable performance for your mobile computing needs. Whether you’re working in a busy coffee shop or presenting in a crucial meeting, this battery ensures your Asus laptop stays powered throughout your day.


Technical Specifications

Brand Asus Compatible
Voltage 10.8V
Capacity (Wh) 33Wh
Capacity (mAh) 2900mAh
Cells 3-Cell
Chemistry Li-ion
Colour Black
Warranty 1 Year

Compatible Part Numbers

3ICR19
A31-N1519
A31N1519
A540
A540L
A540LA
F540LA
F540LJ
F540SA
F540SC
F540UP7200
R540
R540L
R540LA
R540LJ
R540S
R540SA
R540UP
SERIES(11.25V
X540
X540L
X540LA
X540LA-1A
X540LA-1C
X540LA-3F
X540LA-3G
X540LA-3H
X540LA-SI302
X540LA-XX002T
X540LA-XX003T
X540LA-XX004T
X540LA-XX013T
X540LA-XX021T
X540LJ
X540LJ-1A
X540LJ-1C
X540LJ-3F
X540LJ-3G
X540LJ-3H
X540LJ-XX001T
X540LJ-XX014T
X540LJ-XX015T
X540LJ-XX044T
X540S
X540SA
X540SA-1A
X540SA-1C
X540SA-3F
X540SA-3G
X540SA-3H
X540SA-XX012T
X540SA-XX020T
X540SA-XX041D
X540SA-XX041T
X540SA-XX085T
X540SC
X540SC-1A
X540SC-1C
X540SC-3F
X540SC-3G
X540SC-3H
X540U
X540UA
X540YA
X540YA-1A
X540YA-1C
X540YA-3F
X54OU

Compatible Laptop Models

x540UA

Additional models may be supported. Contact cs@usabatteries.com to check compatibility.

โš ๏ธ Safety Notice: Lithium batteries can cause fire or injury if misused. Do not leave on charge unattended or overnight. Avoid exposure to heat or water, and discontinue use if the battery swells or leaks.
Additional information
Voltage10.8V
Capacity33Wh
Cells3-Cell
ChemistryLi-ion
Compatible Part Numbers3ICR19, A31-N1519, A31N1519, A540, A540L, A540LA, F540LA, F540LJ, F540SA, F540SC, F540UP7200, R540, R540L, R540LA, R540LJ, R540S, R540SA, R540UP, SERIES(11.25V, X540, X540L, X540LA, X540LA-1A, X540LA-1C, X540LA-3F, X540LA-3G, X540LA-3H, X540LA-SI302, X540LA-XX002T, X540LA-XX003T, X540LA-XX004T, X540LA-XX013T, X540LA-XX021T, X540LJ, X540LJ-1A, X540LJ-1C, X540LJ-3F, X540LJ-3G, X540LJ-3H, X540LJ-XX001T, X540LJ-XX014T, X540LJ-XX015T, X540LJ-XX044T, X540S, X540SA, X540SA-1A, X540SA-1C, X540SA-3F, X540SA-3G, X540SA-3H, X540SA-XX012T, X540SA-XX020T, X540SA-XX041D, X540SA-XX041T, X540SA-XX085T, X540SC, X540SC-1A, X540SC-1C, X540SC-3F, X540SC-3G, X540SC-3H, X540U, X540UA, X540YA, X540YA-1A, X540YA-1C, X540YA-3F, X54OU
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Shipping FAQ

At USA Batteries, we are committed to providing fast, free, and reliable shipping on every order. Below, youโ€™ll find detailed information about our shipping process, delivery timelines, carriers, and what to do if your order experiences an issue.


๐Ÿšš What is the cost of shipping?

Shipping is completely free on all orders โ€” no minimum purchase requirements, no hidden fees, and no surprise charges at checkout. We believe in transparent pricing so you can shop with confidence.


๐Ÿ“ฌ Which shipping carriers do we use?

Most orders are shipped via USPS (United States Postal Service), which provides fast and affordable nationwide delivery. For large, heavy, or bulk orders, we may use FedEx or UPS to ensure safe and efficient handling.

Please Note: Some oversized products or wholesale shipments may require alternative carriers based on size, weight, or destination.


โฑ๏ธ How long does shipping take?

  • Standard USPS Delivery:ย Most items arrive withinย 3โ€“5 business daysย after leaving our warehouse.
  • Order Processing:ย Orders are typically processed and shipped withinย 24 business hoursย of purchase.
  • Delays:ย Shipping times may be longer during weekends, public holidays, or severe weather conditions.

If your order is time-sensitive, please contact us before purchasing, and weโ€™ll do our best to assist.


โšก Do you offer expedited shipping?

Currently, we do not offer paid expedited shipping options. However, many of our USPS shipments use Priority Mail, which generally arrives within 2โ€“3 business days for most U.S. locations.

If you need a faster delivery option, reach out to us at cs@usabatteries.com, and weโ€™ll check if a special arrangement can be made.


๐ŸŒŽ Do you ship internationally?

At this time, we only ship within the United States. We do not offer international delivery options.


๐Ÿ“ฎ Can you deliver to PO Boxes?

Yes! We gladly deliver to PO Boxes, as USPS handles most of our shipments.
If your order requires FedEx or UPS (usually for larger packages), we may contact you for a physical street address.


๐Ÿ” How can I track my order?

You will receive an email with a tracking number as soon as your order ships.
You can also check your order status anytime on our Track Your Order page.


๐Ÿ“ฆ Lost or Missing Packages

If your tracking number shows โ€œDeliveredโ€ but you havenโ€™t received your package:

  1. Check around your homeย โ€” porch, mailbox, garage, or any safe drop-off spots.
  2. Ask neighbors or household membersย in case someone accepted the package.
  3. Wait 24 hoursย โ€” USPS sometimes scans items as delivered before arrival.

If your package is still missing after these steps:

  • Contact yourย local USPS office. USPS can provideย GPS delivery confirmationย to determine where your package was left.
  • Contact us atย cs@usabatteries.comย or viaย Live Chat. We will assist you in opening an investigation and help retrieve GPS scan data if necessary.

Insurance Claims: All USPS shipments are insured. Any claims for lost or damaged packages must be filed with USPS. We will guide you through the process to ensure a resolution.


โœ… Our Commitment

Your satisfaction is our priority. If you experience any shipping issues, we will work closely with USPS or the relevant carrier to resolve the situation promptly and ensure your order reaches you safely.

The USABatteries.com Guarantee

Your satisfaction is our priority. Every battery from USABatteries.com is rigorously tested and backed by a comprehensive 1-Year Warranty. We are so confident in our quality that we offer a Risk-Free 30-Day Money-Back Guarantee: if you aren't completely happy within the first month, we will cover the return shipping costs ourselves. Quality power, zero risk.

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