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I replaced the original battery March, 2023. The replacement was a NewerTech NuPower 60 Watt-Hour Replacement Battery. Now the laptop is losing network connectivity, loading web sites sloooowly. I ran an EtreCheck Pro study which found the battery to be failing. I am leary about putting another NewerTech battery in. Any alternatives available?
MacBook Air (2018 – 2020)
Please post the EtreCheck report. That is how it is intended to be used. Those of us who have reviews thousands of those reports here stand a better chance of spotting something subtle that may be the issue at play.
The report is too long to paste normally, so please use these posting instructions:
How to use the Add Text Feature When Post… - Apple Community
That also insures the formatting is not scrambled, and that any secure/personal info is scrubbed.
At this point your symptoms sound more like some hardware item was damaged during installation. Try running Apple Diagnostics, as EtreCheck primarily tests software-related hardware (RAM; storage). It would not pick up a damaged sensor or component connector for example, but Diagnostics would.
Use Apple Diagnostics to test your Mac - Apple Support
There is a link at the bottom of that page to another the "translates" any error codes that result.
Apple did not intend the battery to user-serviceable, and we see a number of reports of hardware damage to other components following an at-home or non-Apple battery replacement.
The bad new is that, if the hardware is damaged, Apple will not work on a computer which someone else has serviced. You might contact OWC to see if they have a ship-in service for devices struggling with their batteries.
I've generally found the NewerTech batteries from OWC to be quite good. I've gone through quite a few over 15-odd years for multiple computers and had maybe one that ended up not working out well. Sometimes electronics fail early.
replacing battery for MacBook Air 13' 2017
