Will Dell laptops accept non-Dell batteries?

Dell has a rigorous qualification process by which all Dell batteries are validated to ensure proper function, performance and safety.

Some non-Dell batteries http://www.udtek.com/dell-inspiron-1520-battery-cells-4400mah-p-31201.htmlare available in the market with claims of compatibility with Dell systems.

Dell cannot verify these claims, nor the safety of using them in a Dell system.

Dell strongly encourages our customers to use only Dell laptop batteries advertised as appropriate for their laptop model.

Only Dell laptop batteries come with a 1-year warranty, are engineered for optimal safety and performance for Dell systems, and are supported by Dell technical support for the length of the warranty period.http://www.udtek.com/dell-latitude-d600-battery-cells-4400mah-p-24068.html