Trust Comes From Quality
Our Acer Aspire ES1-521-899K battery is made of A+ cells provided by the original manufacturers, adopting high-quality lithium-ion materials to ensure the battery can be used safely for a super long time, rejuvenate your notebook.
Eradicate falsehood and persist in truthfulness
Our Acer Aspire ES1-521-899K battery replacement has 100% real capacity, all of the batteries you receive have passed the strict quality test, reaching or even exceeding the OEM standards.
Ideal fit and 100% compatible
The Acer Aspire ES1-521-899K replacement battery materials are supplied by the original manufacturer, the size of our battery is the same as the original battery, and 100% compatible with your laptop.
Each of our Acer Aspire ES1-521-899K laptop battery has built-in multiple protection devices, to prevent problems such as short circuits, overheating, overload, and achieve maximum security. We also adopted an intelligent controller to ensure longer service life and durability.