Specification: Battery type: Li-ion Voltage: 11.1V (Compatible with 10.8V) Capacity: 5200mAh Cell: 6 Cells recharge cycles： 500 Operation time: Around 2-3 hours Compatible Models：( Ctrl + F for fast search ur laptop model) For Dell Latitude E5400 Series / E5400N / E5410 For Dell Latitude E5500 Series / E5500N Series / E5510 Compatible Part Numbers： KM668 / KM742 / KM752 / KM760 / KM970 / MT186 / MT187 / MT193 / MT196 / MT332 / RM649 / RM656 / RM661 / RM668 / PW640 / PW649 / PW651 / WU841 / WU843 / WU852 / T749D / U116D / W071D / X064D / P858D.
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