45Wh Acer AP13J4K Battery

45Wh AP13J4K Battery for Acer Chromebook 11 and Chromebook 14 Series

This 45Wh Acer AP13J4K battery is designed for compatible Acer Chromebook models,
including selected Acer Chromebook 11 C740, Acer Chromebook 14 CP5-471,
and Acer Chromebook 14 CB3-431 series devices. It is a suitable choice when your
current battery drains quickly, no longer holds a charge, or your Chromebook needs stable portable
power again.

With an 11.4V output voltage, 3920mAh / 45Wh capacity, and
3-cell battery design, this battery supports everyday Chromebook use such as
schoolwork, browsing, email, documents, video playback, online classes, 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 AP13J4K
• Acer AP13J3K
• Acer ICP5/65/88
• Acer KT.00303.011
• Acer KT.00303.014
• Acer KT.00304.001
• Acer KT.00307.008
• Acer KT00304001

Compatible Laptop Models

This Acer AP13J4K battery is designed for the following Acer Chromebook models. Please check both
your Chromebook model and battery part number before placing your order.

• Acer Chromebook 11 (C740)
• Acer Chromebook 11 (C740-C3DY)
• Acer Chromebook 11 (C740-C3P1)
• Acer Chromebook 11 (C740-C4PE)
• Acer Chromebook 14 (CP5-471)
• Acer Chromebook 14 (CP5-471-312N)
• Acer Chromebook 14 (CP5-471-35T4)
• Acer Chromebook 14 (CP5-471-53QV)
• Acer Chromebook 14 (CP5-471-5612)
• Acer Chromebook 14 (CP5-471-581N)
• Acer Chromebook 14 (CP5-471-C0EX)
• Acer Chromebook 14 (CP5-471-C2SU)
• Acer Chromebook 14 (CP5-471-C67N)
• Acer Chromebook 14 (CP5-471-C8KZ)
• Acer Chromebook 14 CB3-431
• Acer Chromebook 14 CB3-431-C5FM
• Acer Chromebook 14 CB3-431-C6H3
• Acer Chromebook 14 CB3-431-C6UD
• Acer Chromebook 14 CB3-431-C6V9
• Acer Chromebook 14 CB3-431-C78X
• Acer Chromebook 14 CB3-431-C8CE
• Acer Chromebook 14 CB3-431-C8Z1

When Should You Replace Your Acer Chromebook Battery?

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

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

Why Buy This AP13J4K Battery?

• Designed for Acer Chromebook models: suitable for selected Chromebook 11 C740, Chromebook 14 CP5-471, and Chromebook 14 CB3-431 devices listed above.
• 45Wh capacity: supports everyday Chromebook use, schoolwork, browsing, email, documents, and travel.
• 3-cell battery design: made for compatible Acer systems using the listed AP13J4K battery specifications.
• Stable power output: built for compatible Chromebooks that use 11.4V AP13J4K or AP13J3K 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 Chromebook 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 AP13J4K,
AP13J3K, ICP5/65/88, KT.00303.011,
KT.00303.014, KT.00304.001, KT.00307.008,
or KT00304001.

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

Installation Notes

• Turn off the Chromebook completely before replacing the battery.
• Disconnect the charger and any external devices.
• Use the correct tools and open the device carefully to avoid damaging the case, screen, 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 Chromebook repair, professional installation is recommended.

Frequently Asked Questions

Is this battery suitable for Acer AP13J4K?

Yes. This battery is suitable for Acer AP13J4K and related part numbers including AP13J3K,
ICP5/65/88, KT.00303.011, KT.00303.014, KT.00304.001, KT.00307.008, and KT00304001.

Does this battery fit Acer Chromebook 11 C740?

Yes. This battery is listed for Acer Chromebook 11 C740 and selected C740 sub-models, including
C740-C3DY, C740-C3P1, and C740-C4PE.

Can this battery be used for Acer Chromebook 14 CP5-471?

Yes. This battery is listed for selected Acer Chromebook 14 CP5-471 models, including CP5-471-312N,
CP5-471-35T4, CP5-471-53QV, CP5-471-5612, CP5-471-581N, CP5-471-C0EX, CP5-471-C2SU,
CP5-471-C67N, and CP5-471-C8KZ.

Does this battery support Acer Chromebook 14 CB3-431?

Yes. This battery is suitable for selected Acer Chromebook 14 CB3-431 models, including CB3-431,
CB3-431-C5FM, CB3-431-C6H3, CB3-431-C6UD, CB3-431-C6V9, CB3-431-C78X, CB3-431-C8CE,
and CB3-431-C8Z1.

What voltage is this battery?

This battery has an output voltage of 11.4V. Please compare it with the voltage printed on your
current battery before purchase.

What capacity is this battery?

The battery capacity is 3920mAh / 45Wh.

How many cells does this battery have?

This battery uses a 3-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 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.