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This laptop has served me well for over 5 years and is still going strong. Thank you, Apple, for building a quality product. There are three areas I may need upgrades. I tend to keep many Chrome tabs open and that eats up much of the 8 GB memory. When I originally partitioned the disk, I didn’t allocate enough to Windows and am left with about 8 G available. I keep it mostly plugged in and the battery lasts about 2 hours on its own. So, 1- How do I upgrade it from 8GB to 12 or 16? 2- Should I replace the old 250GB SSD with a larger one or can I do non-destructive re-allocation between OSX and Windows? 3- How do I check my battery health and if needed, which aftermarket battery should I replace it with? Thank you.

To check the status of your battery download, install and run Coconut Battery: https://www.coconut-flavour.com/coconutb… Standard RAM:8 GBMaximum RAM:16 GB* Details:*8 GB of RAM is onboard. It originally could be upgraded at the time of purchase to 16 GB as a US$200 option, but it cannot be upgraded subsequently. Here are some storage options, Transcend also make them: https://eshop.macsales.com/upgrades/macb… If you get an OWC stick you can also get the Envoy enclosure. The you can install a system and use Migration Assistant to move you data. Afterward you can use the Envoy to put your old stick into for a Time Machine User data back up.