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Hello. Just some days ago replaced the battery in my 2019 15 inch MacBook Pro A1990. I feel like the new battery is draining too fast and being charged back too slow. I tried to find information on the net, but found it hard to pinpoint the right answer. Sometimes I found opposite answers and so. I have 2 questions: 1- Is there a way to check if the new battery is performing as it should? (Downloaded coconutBattery (as mayer suggested in a previous post, thanks mayer!) :-)and it says “battery status: good). I mean is there a time frame that within it my battery should go from 0 to 100% and vice versa ( I’m aware that that would be up to what apps are currently open and many more factors but I’d like to find an indicator with clear definitions though). 2- How to give my battery the longest life and lifespan? (Again, during the 15+ years owning MBPs, I found different info about the subject.) Read the current tips at the Apple website. Any additional enlightening? Thanks in advance Saul

Was the battery that bad in a 2 year old machine that you needed to replace it? I’m not trying to judge. Just curious why you replaced it so soon? I have a 2013 13” retina pro that just started giving me a “battery service” message last year and it held up pretty well. Unfortunately, Apple doesn’t sell OEM parts to anyone unless you’re an AASP so the batteries that are available are aftermarket or pulled from donor machines. If someone is selling you an OEM battery then they’re either lying or it was, as I mentioned before, pulled from a donor device. I myself have a cellphone, tablet, and computer repair shop and a part of some online forums and groups and some have discussed the quality of these aftermarket batteries in that they don’t compare to the OEM ones. One member even stated he’s had a customer come to him twice to replace her macbook battery. The OEM one went bad and the aftermarket replacement went bad after two years. This is something Right to Repair can help resolve by requiring manufacturers to make their tools, parts, and repair guides publicly available to consumers and independent repair shops such as myself so that either you or independent shops can offer better service and keep prices low on repairs. When I asked apple how much it was to replace my battery, they said they don’t service my machine anymore because they considered it “vintage”. I asked if they knew anyone that would and said they were the only ones “capable”.