This HP replacement battery pack is a mAh, , rechargeable, removable, battery designed to work with HP Envy x360 15-w003na. The Hi-Quality battery meets or exceeds original manufacturer specifications for the HP Envy x360 15-w003na Laptop Battery in quality, durability, and performance. Li-ion batteries do not suffer from the memory effect. They generally last between 300-500 charge/discharge cycles. All laptop batteries are tested for 100% quality control assurance. This battery for HP Envy x360 15-w003na includes a one year warranty. We offer a 30 day money back guarantee and fast shipping on all of our products.