Get longer battery life and improved laptop performance with an Acer AP12E3K battery for the Aspire S7-191 laptop model.

This battery is compatible with the Acer Aspire S7 191 UltraBook 11" laptop models and the AP12E3K battery part number.

We use the highest quality lithium-ion batteries that charge faster and last longer than cheaper, lower quality batteries. Cheaper batteries can wear out in as little as 6 months. Our batteries can last up to 500 recharge cycles, or roughly 5 years.

This Acer AP12E3K battery is 100% compatible with your Acer Aspire laptop and is tested and inspected before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.

You can expect about 3 - 4 hours of run time with this Acer AP12E3K battery when new. Even longer run time can be achieved by minimizing your screen brightness and energy use. The higher capacity battery cells inside this cartridge have an energy capacity of 3280 mAh.