TWB Premium Grade Generic Laptop Battery For Acer Aspire S7-191 AP12E3k TWB Batteries are the perfect choice that you can make for your computer. Very affordable, The best quality batteries on the market. Long Life durable Battery for your Laptop 7.4 Volts; NOT compatible with 14.8V or 14.4V systems 28 Whr 3790mah 4 Cell Li-ion Acer Aspire S7-191 Battery Compatible Part Numbers: Acer AP12E3K 1ICP3/65/114-2+1ICP5/42/61-2 11CP5/42/61-2Battery Acer Aspire S7-191 Battery Fit Laptop Machine Models: Acer Aspire S7-191 Battery What's in the box 1 X Laptop Battery