49.7Wh Acer AC14B3K Battery

49.7Wh AC14B3K Battery for Acer Aspire, Chromebook, Spin, Swift and TravelMate Series

This 49.7Wh Acer AC14B3K battery is designed for compatible Acer Aspire,
Chromebook, Spin, Swift, and TravelMate series laptops. It is a suitable choice when your current
battery drains quickly, no longer holds a charge, or your laptop needs stable portable power again.

With a 15.2V output voltage, 3270mAh / 49.7Wh capacity, and
4-cell battery design, this battery supports everyday laptop use such as work,
school, browsing, email, video playback, online meetings, and travel.

Product Information

Compatible Part Numbers

Please compare the part number printed on your current battery before ordering. This battery is
suitable for the following Acer battery part numbers:

• Acer AC14B3K
• Acer KT.00403.030
• Acer KT.00403.032
• Acer KT.00403.040
• Acer KT.00403.041
• Acer KT00403030
• Acer KT00403032
• Acer KT00403041

Compatible Laptop Model Series

This Acer AC14B3K battery is designed for the following Acer laptop and Chromebook model series.
Please check both your laptop model and battery part number before placing your order.

• Acer Aspire ES1-433
• Acer Aspire ES1-522
• Acer Aspire ES1-572
• Acer Aspire R15 (R5-571T)
• Acer Aspire R15 (R5-571TG)
• Acer Chromebook 11 (C730E)
• Acer Spin 1 (SP111-31)
• Acer Spin 1 (SP113-31)
• Acer Spin 3 (SP315-51)
• Acer Spin 5 (SP513-51)
• Acer Swift 3 (SF314-51)
• Acer TMP449-G3-M
• Acer TravelMate B1 (TMB117-M)
• Acer TravelMate B1 (TMB117-MP)
• Acer TravelMate P2 (P238-M)
• Acer TravelMate P4 (P449-G2-M)
• Acer TravelMate P4 (P449-G2-MG)
• Acer TravelMate P4 (P449-M)
• Acer TravelMate P4 (P449-MG)
• Acer TravelMate P4 (P459-G2-M)
• Acer TravelMate P4 (P459-G2-MG)
• Acer TravelMate P4 (P459-M)
• Acer TravelMate P4 (P459-MG)
• Acer TravelMate X3 (TMX349-G2-M)
• Acer TravelMate X3 (TMX349-M)

When Should You Replace Your Acer Laptop Battery?

If your Acer laptop or Chromebook no longer provides enough runtime for normal use, changing the
battery can help restore convenient portable performance without replacing the entire computer.

• The battery drains much faster than before.
• The laptop shuts down unexpectedly during use.
• The battery percentage drops suddenly or behaves abnormally.
• The laptop only works when connected to the charger.
• The battery does not charge to full capacity.
• Windows, ChromeOS, or BIOS shows a battery health warning.

Why Buy This AC14B3K Battery?

• Wide Acer model coverage: suitable for selected Aspire, Chromebook, Spin, Swift, and TravelMate models listed above.
• 49.7Wh capacity: supports everyday laptop use, work, study, browsing, and travel.
• 4-cell battery design: made for compatible Acer systems using the listed AC14B3K battery specifications.
• Stable power output: built for compatible laptops that use 15.2V AC14B3K batteries.
• Brand new battery: a practical option when your current battery becomes weak or unreliable.
• 12-month warranty: gives customers more confidence when ordering.
• 30-day return policy: provides extra peace of mind after purchase.

Important Compatibility Reminder

Acer laptop batteries may look similar but can have different voltage, connector position, battery
shape, capacity, or internal layout. Before ordering, please confirm that your current battery part
number matches one of the listed part numbers, such as AC14B3K,
KT.00403.030, KT.00403.032, KT.00403.040,
KT.00403.041, KT00403030, KT00403032,
or KT00403041.

You can usually find the battery part number printed on the battery label. You can also check your
laptop model number on the bottom cover, system information page, Chromebook settings, or original
device label.

Installation Notes

• Turn off the laptop completely before replacing the battery.
• Disconnect the charger and any external devices.
• Use the correct tools and open the laptop carefully to avoid damaging the case or internal parts.
• Do not bend, puncture, disassemble, or force the battery during installation.
• Make sure the battery connector is properly aligned before closing the back cover.
• After installation, charge the battery fully before regular use.
• If you are not familiar with laptop repair, professional installation is recommended.

Frequently Asked Questions

Is this battery suitable for Acer AC14B3K?

Yes. This battery is suitable for Acer AC14B3K and related part numbers including KT.00403.030,
KT.00403.032, KT.00403.040, KT.00403.041, KT00403030, KT00403032, and KT00403041.

Does this battery fit Acer Aspire ES1 models?

Yes. This battery is listed for selected Acer Aspire ES1 models, including ES1-433, ES1-522,
and ES1-572.

Can this battery be used for Acer Aspire R15 models?

Yes. This battery is listed for Acer Aspire R15 R5-571T and R5-571TG models.

Does this battery support Acer Spin and Swift models?

Yes. This battery is suitable for selected Acer Spin 1, Spin 3, Spin 5, and Swift 3 models listed above.

Does this battery fit Acer TravelMate models?

Yes. This battery is listed for selected Acer TravelMate B1, P2, P4, and X3 models, including
TMB117, P238-M, P449, P459, and TMX349 series devices.

What voltage is this battery?

This battery has an output voltage of 15.2V. Please compare it with the voltage printed on your
current battery before purchase.

What capacity is this battery?

The battery capacity is 3270mAh / 49.7Wh.

How many cells does this battery have?

This battery uses a 4-cell design.

Is this battery brand new?

Yes. This product is listed as brand new.

What should I check before buying?

Please check your Acer laptop or Chromebook model, current battery part number, battery voltage,
and battery shape. The safest way to confirm fit is to compare the part number on your current
battery with the part numbers listed above.