This JUMPER replacement battery pack is a 4800mAh, 7.6, rechargeable, removable, Li-Polymer battery designed to work with JUMPER 5080270P. The Hi-Quality battery meets or exceeds original manufacturer specifications for the JUMPER 5080270P 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 JUMPER 5080270P includes a one year warranty. We offer a 30 day money back guarantee and fast shipping on all of our products.