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I just replaced my battery on my MacBook Pro 13" Retina Display Early 2013, that I purchased from iFixit. The battery is not being recognized. The machine powers up fine when plugged in. When I boot and get to the login screen it shows the battery symbol with a white X. When I login and access the System Preferences/Energy Saver/Battery, the battery shows 0% and clicking on “show battery status in menu bar” does nothing. I already opened the machine back up to reseat the battery connector but not luck. Can someone please suggest things to try? Thanks

Lets try doing an SMC reset How to reset the System Management Controller (SMC) on your Mac Update (09/10/2018) Oh No! OK, lets double check things. run this app coconutbattery and post a snapshot of the apps window here for us to see with the charger plugged in Adding images to an existing question Update (09/10/2018) @tate16t- OK, the MagSafe adapter appears not to be connecting. What is the color of the MagSafe connector’s LED Amber or Green? Just to be sure you did take the snapshot with the MagSafe connected correct? Review this Apple T/N to make sure you have the correct MagSafe adapter and the cable & connector surfaces are in good shape Apple Portables: Troubleshooting MagSafe adapters and lastly you may need a new DC-In Board, here’s the IFIXIT guide MacBook Pro 13" Retina Display Early 2013 MagSafe DC-In Board Replacement and here’s the needed part MacBook Pro 13" Retina (Mid 2012-Early 2013) MagSafe 2 DC-In Board

Thanks Dan. I received a replacement battery and installed it last night and everything is working fine. Thanks for your help!