Acer AP12E3K Original Battery 3790mAh 7.4V for Aspire S7-191 Ultrabook

The Acer AP12E3K battery price in BD at QASWATEC covers an original 3790mAh, 7.4V Li-ion pack for the Acer Aspire S7-191 11-inch Ultrabook. If your slim S7 no longer lasts through the day, a new AP12E3K restores its portable runtime. The pack is black, new and tested before sale, with warranty from QASWATEC.

Key Features

• Battery type: Li-ion, new condition
• Capacity: 3790mAh
• Voltage: 7.4V
• Original grade Acer AP12E3K pack
• Fits Aspire S7-191 11-inch Ultrabook
• Matches the 11CP5/42/61-2 cell code

Compatible Laptops and Part Numbers

This battery is listed for the Acer Aspire S7-191 Ultrabook with an 11-inch screen. The pack also carries the code 11CP5/42/61-2. Check your old battery label for AP12E3K before ordering, and tell us if your label shows a different code.

Signs the Battery Needs Replacing

• The Ultrabook shuts down at a middle charge level
• Runtime has dropped sharply
• The charger is plugged in but the percentage stays flat
• The base cover bulges or lifts

Why Replace It Early

In a thin Ultrabook a swelling pack presses on the trackpad and bottom cover. Replacing it early avoids that damage and brings back dependable use away from a socket.

What You Get

You receive a new AP12E3K battery pack with warranty from QASWATEC. Our team can check the fit for you before you buy, so you avoid a wrong order and a second trip to the shop.

Care Tips for Longer Life

• Avoid draining the pack to zero often
• Keep the Ultrabook away from heat
• Do not leave it on charge at 100 percent for days

A cooler pack holds its charge longer, which slows capacity loss.

Before You Order

Check the part number on the old battery and your laptop model. Send a photo and we will confirm the match.

Buy Acer AP12E3K Battery from QASWATEC

QASWATEC has served laptop users from Elephant Road, Dhaka since 2010. Visit the showroom to collect your battery, or order and we will deliver across Bangladesh.