This new replacement laptop battery from eReplacements is 100% compatible with your 57y6266 lenovoibm replacement and is Black in color and is rated at 4800 mAh and 11.1 Volts. eReplacements laptop batteries all come with a 1 year warranty and will meet or exceed the original 57y6266 lenovoibm replacement laptop battery specifications because they are manufactured for high performance in our ISO 9000 factories using the best quality cells and most up to date safety and engineering control standards: - High/low temperature shut off protection - Thermal runaway protection - Overcharge shut off protection - Over discharge shut off protection - Cell imbalance shut off protection - Fire resistant plastic casing - Manufactured using the most up to date TI BQ20Z chip set
