Hello, I’m sorry to hear that you’re having trouble with your MacBook Pro battery. It sounds like you have a faulty or incompatible battery that is not recognized by your laptop. There are a few possible causes and solutions for this issue:
* The battery connector may be loose or damaged. You can try to reseat the battery connector by following the instructions on [link|https://www.digitaltrends.com/computing/apple-macbook-pro-battery-replacement/|this guide|new_window=true]. Make sure the connector is properly aligned and firmly attached to the logic board.
* The battery may be defective or incompatible with your laptop model. You can check the compatibility of your battery by looking at the model number on the original battery or on the laptop case. The model number should be A1582 for MacBook Pro 13" Retina Display Early 2015. If you have a different model number, you may need to get a new battery that matches your laptop model.
* The battery may need to be calibrated or reset. You can try to calibrate the battery by following the steps on [link|https://support.apple.com/en-us/HT204054|this article|new_window=true]. You can also try to reset the System Management Controller (SMC) by following the steps on [link|https://support.apple.com/en-us/HT204054|this article|new_window=true]. These steps may help the laptop recognize the battery and improve its performance.
* The laptop may have a hardware or software issue that prevents it from detecting the battery. You can try to update your macOS to the latest version and see if that resolves the issue. You can also run Apple Diagnostics to check for any hardware problems. To do this, turn off your laptop, then press and hold the D key while turning it on. Follow the onscreen instructions to run the diagnostics and see if there are any errors or issues reported.
If none of these solutions work, you may need to contact Apple Support or an Apple Authorized Service Provider for further assistance. They may be able to diagnose and repair your laptop or replace your battery under warranty or for a service fee.
I hope this helps you with your MacBook Pro battery issue. Feel free to ask questions at any time. 😊