Re: T440 gives AC power error when batteries are present in ThinkPad: T400 / T500 and newer T series Laptops https://forums.lenovo.com/t5/ThinkPad-T400-T500-and-newer-T-series-Laptops/T440-gives-AC-power-error-when-batteries-are-present/m-p/2118690 ThinkPad: T400 / T500 and newer T series Laptops topics Mon, 10 Aug 2015 07:22:47 +0000 tp01_en <![CDATA[ Re: T440 gives AC power error when batteries are present ]]> https://forums.lenovo.com/topic/findpost/1300/2118690/2141002 This is a known issue. The fix is to install the latest version of Power Manager and add the registry file described at https://forums.lenovo.com/t5/ThinkPad-W-Series-Laptops/W540-charg ]]> Mon, 10 Aug 2015 07:22:47 +0000 https://forums.lenovo.com/topic/findpost/1300/2118690/2141002 Zian