This SAMSUNG replacement battery pack is a mAh, , rechargeable, removable, battery designed to work with SAMSUNG NP530U4C-S04DE. The Hi-Quality battery meets or exceeds original manufacturer specifications for the SAMSUNG NP530U4C-S04DE 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 SAMSUNG NP530U4C-S04DE includes a one year warranty. We offer a 30 day money back guarantee and fast shipping on all of our products.