I have a 2015 retina 15" with the 370x gpu. I replace the battery few months ago with a newer tech nu power one from owc. I had the battery at 100 percent and it was down 23 percent after watching a 30 min YouTube video and after and hour use is at 64 percent. is this normal or did I get a bad battery? coconut battery shows 9643mh as full capacity and 13 cycle.
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battery life issue
- Thread starter jeff6666p
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Did you calibrate the battery? In any case, suggest do so again, and reset SMC.
This may not solve your issue, but you need to reset/calibrate to know where you are.
This may not solve your issue, but you need to reset/calibrate to know where you are.
when I first got it I followed the calibration instructions. did 5 cycles
OK, well I don't know what is normal for a 2015 15" MBP. I suggest keep watching YT until it is down to ~10% and see how long it really lasts. Don't run the screen at 100%.
Based on this info your battery is defective, unless you have some other software running the background that's taking all your power. The only other thing I can think of is maybe the video you were watching was in 4K or 8K and it took a lot of power, but still losing 77% in 30 minutes is beyond awful. I would replace the battery.
It didn’t lose 77 percent in 30 min it only Loss 23 percent. After I updated to Monterey it went from 23 to around 15 percent drop per 30 mins of youtube. I tested about 2 hours from 100 to 50 percent when watching YouTube at 1080p. So I should get around 4 hours but it still seems lower then before I changed the battery. Pretty sure I was getting 5-6 hours before. Using istat menu I see the system total wattage sits around 20-25 but spikes to 40 sometimes when watching YouTube. I’m using safari.
I also saw in fullscreen it uses more power then window and sometimes the dgpu has lower power usage then the integrate one.