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  • 48Wh AP18K4K（Not AP18C4K） Laptop Battery Replacement for for Acer Chromebook 311 C721 for Chromebook 311 C721 R721T, for Chromebook 311 C721-25AS, for Chromebook 311 C721-434R Series High Performance
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48Wh AP18K4K（Not AP18C4K） Laptop Battery Replacement for for Acer Chromebook 311 C721 for Chromebook 311 C721 R721T, for Chromebook 311 C721-25AS, for Chromebook 311 C721-434R Series High Performance

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About this item

  • SPECIFICATION : Model Name:AP18K4K Voltage: 11.4V. Capacity: 4200mAh 48Wh Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Condition: 100% New; Battery life: More than 1000 cycles.
  • COMPATIBLE P/N: AP18K4K KT00304013， This battery is not Ap18C4K, they are not compatible, if you need AP18K4K, plz search the Asin: B0FV328WTF. For Acer Chromebook 311 C733T-C67J, for Chromebook 311 C733T-C8S, for Chromebook 311 C733T-C8SZ, for Chromebook 311 C733T, for Chromebook 311 CB311-9H CB311, 311 CB311-9H-A14P, 311 CB311-9H-C0VS, 311 CB311-9H-C0Z8, 311 CB311-9H-C12A, 311 CB311-9H-C1JW, 311 CB311-9H-C38F, 311 CB311-9H-C3KK, 311 CB311-9H-C4PP, 311 CB311-9H-C4XC, 311 CB311-9H-C5KP, 311 CB311-9H-C68F, 311 CB311-9H-C7C8, 311 CB311-9H-C86S, 311 CB311-9H-C8YX, 311 CB311-9H-C98L, 311 CB311-9H, 311 CB311-9HT-C27Q, 311 CB311-9HT-C3M2, 311 CB311-9HT-C4EN,
  • Compatible Laptop Models ：For Acer Chromebook 311 C721 for Chromebook 311 C721 R721T, for Chromebook 311 C721-25AS, for Chromebook 311 C721-434R, for Chromebook 311 C721-45UR, for Chromebook 311 C721-48BR, for Chromebook 311 C721-C721T, for Chromebook 311 C733-C0RF, for Chromebook 311 C733-C2E0, for Chromebook 311 C733-C37P, for Chromebook 311 C733-C6LC, for Chromebook 311 C733 311 CB311-9HT-C4UM, 311 CB311-9HT-C783, 311 CB311-9HT-C888, 311 CB311-9HT-C8V9, 311 CB311-9HT-C9LK, Spin 311 R721T-28RM, Spin 311 R721T-482Z, Spin 311 R721T-48A0, Spin 311 R721T-49FS, Spin 311 R721T
  • NOTE:Please confirm your battery information (use Ctrl + F to search for your battery model or computer model) and computer information before purchasing, especially the appearance of the battery and the direction of the battery interface should be the same as the appearance of our main picture. Since there are many batteries with similar appearance.
  • SECURITY AND WARRANTY: JBERY AP18K4K laptop batteries have passed strict intelligent detection, such as short circuit protection, over voltage protection, discharge protection, over current protection, which is very important for battery’s use cycle and safety. All batteries are equipped with high quality material to ensure good performance. CE, FCC, RoHS certificated. 90 Days Money Return； 18 Months Replacement；2 Years Tech Assistance
› See more product details

Product information

Technical Details

Brand ‎Jbery
Manufacturer ‎Dongguanshi hengerneng dianzi youxiangongsi
Model ‎GK5KY
Voltage ‎11.4 Volts
Batteries included ‎No
Batteries Required ‎Yes
Battery Cell Composition ‎Lithium Ion
Manufacturer ‎Dongguanshi hengerneng dianzi youxiangongsi
Item model number ‎GK5KY
ASIN ‎B0FVM295YX

Additional Information

Batteries 1 Lithium Ion batteries required.
Date First Available Oct. 10 2025
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48Wh AP18K4K（Not AP18C4K） Laptop Battery Replacement for for Acer Chromebook 311 C721 for Chromebook 311 C721 R721T, for Chromebook 311 C721-25AS, for Chromebook 311 C721-434R Series High Performance

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Product Description

48Wh AP18C4K Laptop Battery Replacement for ACER for Aspire 5 A515-43 Spin 3 SP314-54N Series Notebo
48Wh AP18C4K Laptop Battery Replacement for ACER for Aspire 5 A515-43 Spin 3 SP314-54N Series Notebo

How to Check Your Laptop Model?

jbery laptop battery
jbery laptop battery
jbery laptop battery

Compatible for Laptop models:Press [Ctrl + F] to search for your type

Compatible Laptop Models For: AP18C4K 3ICP5/81/68
Compatible Laptop Models For: Fit for Acer Spin 3 SP314-54N Series
Compatible Laptop Models For: Fit for Acer for Aspire 5 A515-44 Series
Compatible Laptop Models For: Fit for Acer for Aspire 5 A515-44G Series

  • 1. Confirm your laptop model number (check the original battery or device label).

    2. Match it with the compatible models listed in our product description

  • 1. Battery life varies by usage, settings, and laptop model.

    2. Typically offers several hours under normal use.

    3. Reduce background applications and adjust power settings to extend lifespan.

  • 1. Recharge when the battery level drops to 5-10%.

    2. Avoid completely draining the battery.

    3. Charge in a dry, cool area away from extreme temperatures.

  • 1. Fully charge the battery before first use.Turn off the laptop and disconnect the power adapter during installation.

    2. Calibrate the battery by discharging to 5-7% (do not fully drain) and charging to 95%. Repeat 3-4 times for optimal performance.

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Product Summary: 48Wh AP18K4K（Not AP18C4K） Laptop Battery Replacement for for Acer Chromebook 311 C721 for Chromebook 311 C721 R721T, for Chromebook 311 C721-25AS, for Chromebook 311 C721-434R Series High Performance

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About this Item

  • SPECIFICATION : Model Name:AP18K4K Voltage: 11.4V. Capacity: 4200mAh 48Wh Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Condition: 100% New; Battery life: More than 1000 cycles.
  • COMPATIBLE P/N: AP18K4K KT00304013， This battery is not Ap18C4K, they are not compatible, if you need AP18K4K, plz search the Asin: B0FV328WTF. For Acer Chromebook 311 C733T-C67J, for Chromebook 311 C733T-C8S, for Chromebook 311 C733T-C8SZ, for Chromebook 311 C733T, for Chromebook 311 CB311-9H CB311, 311 CB311-9H-A14P, 311 CB311-9H-C0VS, 311 CB311-9H-C0Z8, 311 CB311-9H-C12A, 311 CB311-9H-C1JW, 311 CB311-9H-C38F, 311 CB311-9H-C3KK, 311 CB311-9H-C4PP, 311 CB311-9H-C4XC, 311 CB311-9H-C5KP, 311 CB311-9H-C68F, 311 CB311-9H-C7C8, 311 CB311-9H-C86S, 311 CB311-9H-C8YX, 311 CB311-9H-C98L, 311 CB311-9H, 311 CB311-9HT-C27Q, 311 CB311-9HT-C3M2, 311 CB311-9HT-C4EN,
  • Compatible Laptop Models ：For Acer Chromebook 311 C721 for Chromebook 311 C721 R721T, for Chromebook 311 C721-25AS, for Chromebook 311 C721-434R, for Chromebook 311 C721-45UR, for Chromebook 311 C721-48BR, for Chromebook 311 C721-C721T, for Chromebook 311 C733-C0RF, for Chromebook 311 C733-C2E0, for Chromebook 311 C733-C37P, for Chromebook 311 C733-C6LC, for Chromebook 311 C733 311 CB311-9HT-C4UM, 311 CB311-9HT-C783, 311 CB311-9HT-C888, 311 CB311-9HT-C8V9, 311 CB311-9HT-C9LK, Spin 311 R721T-28RM, Spin 311 R721T-482Z, Spin 311 R721T-48A0, Spin 311 R721T-49FS, Spin 311 R721T
  • NOTE:Please confirm your battery information (use Ctrl + F to search for your battery model or computer model) and computer information before purchasing, especially the appearance of the battery and the direction of the battery interface should be the same as the appearance of our main picture. Since there are many batteries with similar appearance.
  • SECURITY AND WARRANTY: JBERY AP18K4K laptop batteries have passed strict intelligent detection, such as short circuit protection, over voltage protection, discharge protection, over current protection, which is very important for battery’s use cycle and safety. All batteries are equipped with high quality material to ensure good performance. CE, FCC, RoHS certificated. 90 Days Money Return； 18 Months Replacement；2 Years Tech Assistance
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