macOS Mojave battery drain

Hi guys,i have macbook pro retina 2015(2.7,8 g ram) from store new new new(with el capitan),everithing was perfect and with sierra and hi sierra,last update its mojave :((((,it s slower and same problem with battery,no need to by another charger or something else(reset p ram .........etc), something its not right with this update :(((((((,need to downgrade.

This happens with MacOS Catalina too. I do have a macbook pro 2015 (15") and a macbook pro 2018 (15" with TB). The first one works fine, when I clise the lid over night doesn’t loose battery. The newer one looses all battery if I just close the lid over night.

I believe there is a mix of hardware/software issue and that this happens to the devices that have the T2 chip.

As I've mentioned, I own two macbooks - 2015 and 2018(with TB), both 15" and I have installed MacOS Catalina (latest beta) on both of them.

No matter what OS I had on the 2015 mac, it worked just fine. I am a web developer, spending most of my day in front of my mac. No special battery drains during the day, when I remove the charging cable and just close the lid over night (no shutdown or sleep before that) it keeps the battery power until the next morning.

No matter what OS I had installed on my newer macbook, 2018 - I have always noticed faster battery drain during the day. When I remove the charging cable and just close the lid over night (no shutdown or sleep before that) it has zero power in the next morning.

This is how I did reach to the conclusion that there should be something hardware related. I'm not an electronist, but as far as I know, one major difference between my two macs is the T2 chip. Looking through this forum posts, I have noticed that the "battery drain over night" happens with the newer devices especially.

The invisible power use went away. I rebooted twice and one of those times was to reset SMC. But the abnormal power use continued after that (CPU temperature 50-60C with the lid open, 35-40C with the lid closed). Now it's 43C doing web browsing and my internal battery is staying at 100% even with my small external battery (only puts out 5W). During the power draw episode the 15W external battery was insufficient to keep the internal battery at 100% so the clearly the laptop was burning 15W or more. The case was warm and the fan was going (macbook air fan is pretty quiet, you have to put your ear to the case to hear it).

A recap first. Essentially this topic is covering 2 problems.

1. Battery drain while sleeping

2. Battery draining while using

In my case i never had a sleep drain problem but at mojave and while using my mac, battery could last at about half the life it did with High Sierra.

It is two early since i updated to Catalina 2 days ago. But i am still at 50% of the first charge. and up until now i think the battery is draining satisfyingly slow while using my MBAir 2015.

will be updating after some excessive use.

I have the same issue with my Mac Pro 2016. I put it to sleep at 9 pm at full charge and this morning when I open at 6:30 am it was 80% of battery. With Sierra the consumption used to be 2%.

Same problem here with MBP 2018 13 TB. Loosing around 30% or more per hour. Was like Maximum 10% before the Update.

Same. MacAir 2015. Patch needed.

Same problem here (MacBook Pro 2017) – furthermore charging seems to be very slowly no...

Also have this issue. MacBook Pro 13-inch, 2017, Non-Touch Bar

Same: battery depletes noticeably faster with macOS Mojave. (12" Macbook, Early 2015)

Same here: battery depletes incredibly faster with macOS Mojave. (15" Macbook Pro, Mid-2014). It drains even in sleep mode.

Have this problem on my MacBook 2015 Retina 13' MacBook Pro

Same issue , after updating to Mojave , battery is draining like water after 100% charge , its work for 4 hours roughly plus device is getting heated up. Kindly fix this issue

The most battery draining app is Safari, as it was even before on High Sierra and elder OS's. I'll try to reset the SMC as you suggested 😉