• Aftermarket battery is rated at 650 mAh, and keeps a Standard profile on the Samsung SGH-C417 cell phone since it does Not require any larger battery door. Use the battery door that came with your cell phone. • Powerful Lithium ion battery technology has no memory effect either! • Light weight battery is approximately 2/3 the weight and size of a Nimh battery of the same capacity! • Warranty: 4 Years