54Wh Acer AP12A4i Battery

$65.00

Free Shipping | Installation tools included
Reliable battery for work, study, or travel.
Built-in protection: overcharge, over-discharge, short circuit, overcurrent & temperature safety.
Important Shipping Notice (Chinese New Year 2026 - Batteries)
During the Chinese New Year 2026 holiday period, laptop battery orders may take longer than usual to deliver. This delay is mainly caused by battery sourcing (most laptop batteries are manufactured in China) and holiday logistics congestion.

Estimated Battery Delivery Time
Please allow up to 30 days for delivery during this period.

If You Need a Battery ASAP
We completely understand that a working laptop is time-sensitive. If you need a battery urgently, please order with caution. For the fastest solution, you may prefer a local seller or another supplier that is not impacted during the holiday season. While we are sorry we may not be the quickest option for urgent cases, we will be genuinely happy if you can get your problem solved sooner.

If You are Not in a Hurry
If you can wait, you can place your order with confidence. It is very common to keep using a laptop with reduced battery runtime by plugging it in when needed. We will ship as soon as sourcing and logistics allow, keep your order moving, and deliver a high-quality, reliable battery that fits your device properly.

Thank you for your understanding and support.
SKU: Battery-US-Acer-AP12A4i-54Wh Category: Tag:

Description

Product Information

  • Item Condition: Brand New
  • Color: Black
  • Capacity: 4850 mAh / 54 Wh
  • Output Voltage (Volts): 11.1 Volt
  • Number of Cells: 3 Cells
  • Package Included: 1 x Battery for Acer
  • Warranty: 12 Months / 30-Day Return

Compatible Part Numbers (not all):

Acer AP12A3i,Acer AP12A4i,Acer BT.00303.028,Acer BT.00304.011,Acer BT00304011,Acer KT.00303.002,Acer KT.00304.006,Acer KT00303002,Acer KT00304006,

Compatible Laptop Models Series (not all):

Acer Aspire M3-481,Acer Aspire M3-481G,Acer Aspire M3-581G,Acer Aspire M3-581PT,Acer Aspire M3-581T,Acer Aspire M3-581TG,Acer Aspire M5-481,Acer Aspire M5-481G,Acer Aspire M5-481PT,Acer Aspire M5-481PTG,Acer Aspire M5-481T,Acer Aspire M5-481TG,Acer Aspire M5-581G,Acer Aspire M5-581T,Acer Aspire M5-581TG,Acer Aspire TimelineU M3-481G,Acer Aspire TimelineU M3-581PT,Acer Aspire TimelineU M3-581PTG,Acer Aspire TimelineU M3-581T,Acer Aspire TimelineU M3-581TG,Acer Aspire TimelineU M5-581TG,Acer Iconia W700,Acer Iconia W700P,Acer TravelMate P6 (P645-M),Acer TravelMate P6 (P645-MG),Acer TravelMate P6 (P645-S),Acer TravelMate P6 (P645-SG),Acer TravelMate P6 (P645-VG),Acer TravelMate P6 (P648-G2-M),Acer TravelMate P6 (P648-G2-MG),Acer TravelMate P6 (P648-G3-M),Acer TravelMate P6 (P648-M),Acer TravelMate P6 (P648-MG),Acer TravelMate P6 (P658-G2-M),Acer TravelMate P6 (P658-G2-MG),Acer TravelMate P6 (P658-G3-M),Acer TravelMate P6 (P658-M),Acer TravelMate P6 (P658-MG)

High-Capacity AP12A4i Battery for Acer Aspire M3, M5 & TravelMate P6 Series

Reclaim the “Timeline” in your laptop’s name. Our premium Acer AP12A4i replacement battery is engineered to restore the exceptional battery life of your Aspire M3, M5 Ultrabooks, and TravelMate P6 business laptops. Designed with high-density cells, this 54Wh battery ensures you stay productive through long flights and extended meetings.

Professional Grade Performance:

  • Optimized for Ultrabooks: A perfect 11.1V fit for the slim Acer Aspire M5-481TG, M3-581T, and the professional TravelMate P6 (P645/P648) series.
  • Elite 54Wh Capacity: 4850mAh of power provides the sustained energy needed for Intel Core i5/i7 processors and dedicated graphics performance.
  • Grade-A Power Cells: Built with premium 3-cell architecture to ensure zero-cycle performance, low internal resistance, and a longer overall lifespan.
  • Iconia W700 Compatibility: Specifically tested to meet the unique power draw of the Acer Iconia W700 and W700P tablet series.

Technical Specifications:

Model Number AP12A4i / AP12A3i
Voltage 11.1V
Capacity 54Wh / 4850mAh
Battery Type Li-Polymer (3-Cell)

Full Compatibility List:

Fits the following Acer Laptop & Tablet Series:

  • Acer Aspire M5 Series: M5-481, M5-481G, M5-481TG, M5-581G, M5-581TG
  • Acer Aspire M3 Series: M3-481, M3-581T, M3-581TG, M3-581PT
  • Acer TravelMate P6: P645-M, P645-SG, P648-G2, P648-M, P658-MG (All Versions)
  • Acer Iconia Tablet: W700, W700P

Replacement Part Numbers: AP12A4i, AP12A3i, BT.00303.028, BT.00304.011, KT.00303.002, KT.00304.006

Operational Insight: The Acer TravelMate P645 is a high-end business machine. If your device is not detecting the battery or the battery indicator shows ‘X’, it is often due to the AP12A4i reaching its charge cycle limit. Replacing the internal battery can also solve issues where the laptop won’t wake up from sleep mode without being plugged in.

Frequently Asked Questions

Q: Why is my Acer Aspire M5-481TG overheating near the palm rest?

A: The internal AP12A4i battery is located directly under the palm rest. An aging battery can generate excess heat during charging. Installing a new 54Wh battery will ensure cooler operation and protect your internal components.

Q: Is this AP12A4i battery compatible with the AP12A3i?

A: Yes, they are interchangeable. Both models share the same 11.1V and 54Wh specifications, making them fully compatible with the TimelineU M3 and M5 series.

Q: How long can I expect my Iconia W700 to last with this battery?

A: With a new 4850mAh battery, the Iconia W700 typically returns to its original 7-9 hours of runtime for standard productivity and media consumption.

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