I upgrade the battery in my Dell Inspiron 7000 Series 2-in-1 laptop, model 7569, from a 3 cell battery to a 4 cell battery for greatly increased battery life. The original battery was rated at 42 Watt hours and seemed to give around 5.5 hours of use when brand new. The 4 cell battery is rated at 56 Watt hours. Windows 10 is estimating 7.5 hours of battery life.
Original Battery Type was WDX0R / WDXOR
New Battery Type is 33YDH
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