Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Best battery life?
- Thread starter nph
- Start date
- Sort by reaction score
Well I would assume the 13" will have better battery life due to the weaker CPU and GPU. Also the 13" has a lower resolution.
This. I have this model (specs are in sig), and I managed to squeeze out 12 hours yesterday. If battery life is your main point of concern, definitely consider this machine.
I just bought a 2017 15" MBP, stock 2.8ghz, and I get about 12hrs of battery life. My use is a mix of coding (web dev...amature/learning) so I have a lot of tabs open (8-10 at any time), watching movies on youtube and other streaming sites (average about 4hrs of streaming), and checking on here and other blogs/forums. My brightness is around 50% to 75% and I've been getting 12hrs more or less.
I'm old school with the way I charge the battery so I let the battery die completely and then charge it while the MBP is closed (1.5hrs for full charge) and then let it die completely again and charge it while it's closed. I always do this for the first couple of cycles on any electronics I get...does it improve the battery life?.....mixed reviews but it's something I've done since I had a windows smartphone back in 2004 lol. So old habits..lol.
BTW first MBP ever...so far loving it.
I'm old school with the way I charge the battery so I let the battery die completely and then charge it while the MBP is closed (1.5hrs for full charge) and then let it die completely again and charge it while it's closed. I always do this for the first couple of cycles on any electronics I get...does it improve the battery life?.....mixed reviews but it's something I've done since I had a windows smartphone back in 2004 lol. So old habits..lol.
BTW first MBP ever...so far loving it.
Very old habits... These are modern LiIon batteries not NiCad, there is no 'memory'. It is generally speaking the worst thing to deliberately let the battery completely discharge before charging it back. If you absolutely want to preserve battery condition then you'd want to keep it at 80%, and try not to let it fall below around 40%. But given the lifespan of them, there's generally no harm in keeping it at 100%. There shouldn't be any mixed reviews on those techniques although weirdly you still see on some cheap eBay batteries stickers like "Charge fully for 12 hours before use", again, completely different technology.
I know, and I've had others tell me the same, not to let it die all the bay but yea like I said old habits. However, my wife is complete opposite and will charge anything new anytime she feels like it. Hopefully one day I'll break out of the habit.
This actually accelerates wear tremendously. As New_Mac_Smell noted, shallow discharges extend the service life, where as deeper discharges tend to shorten it.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
If you have AppleCare+, the deep discharges that rapidly accelerate wear may be desirable if the plan includes a free battery replacement as soon as the capacity drops below 80% regardless of the cycle count (in that if you use the battery enough, you get a free one provided you wear it enough during such a warranty period.)
Honestly the best thing to do is just not think about it, and use the device how you want. Just don't deliberately do something with the guise of prolonging battery life. Any wear shouldn't be visible till about 3 years, with 5 years being noticeably reduced under average circumstances (Normal uses such as occasionally running down, leaving on charge, just 'normal' use...). By which time you'd probably have or be looking at replacing.
So if you need to use it on battery each and every day and you can't plug it in, then go for it. Just don't intentionally run it down. Don't think about it, don't worry about it, just use it and enjoy it.
Glad I posted on here, cause even though I knew it wasn't needed to run the battery down, I didn't know it was actually doing harm. I decided to look up some info as well and sure enough, even apples website, says not to let it run down. Time for a change. Like I said, even though I knew it wasn't needed, I didn't know I could be damaging the battery, thanks guys.
Are you even serious 10+ hours of battery ? on the Touch Bar 15" rMBP whoa ! That is surprising people have reported anything between 3-5 hours of battery only. Has it got any better with the 2017 models which were just released a couple of days back ?
nah... this people telling 10 hours - 12 hours all liar. real world using if you just watching movie 8-9 hours at 75% brightness will be correct. but if you web surfing non stop at facebook, twitter, instagram or any high graphic website max 6-7 hours. this people leave their macbook idle then start using again definitely 10-12 hours. if i stop and then using again my macbook will be 16 hours. anyways portable laptop in market can get you 6-7 hours is count the best. if you using windows laptop before you known what i'm talking about. i had using all edition macbook pro, this edition macbook pro is not worst then 2015, but not better then it. so is at par with not an upgrade.
Sorry but I don't agree I have tried mine for the last week and I get 10+ hours on it running Skype, a VM and outlook plus some web surfing. I have used macs for 20+ and my profession is computer science.
I was skeptical but is is reasonable use honestly. Not heavy i e video editing but I am please for my purpose of use.
I was skeptical but is is reasonable use honestly. Not heavy i e video editing but I am please for my purpose of use.
BTW who care what you working as and computer science don't make you more then Rossmann. Liar show proof you run 10+ or maybe 12. my professional got me touch more then 30 unit of this mac all just the same only if your was unique.
but liar are you set 75% brightness and running non stop of your vm, skpye and outlook.
[doublepost=1498280758][/doublepost]using "health battery" app recorded and post here what you been doing with the battery then will talk liar.
but liar are you set 75% brightness and running non stop of your vm, skpye and outlook.
[doublepost=1498280758][/doublepost]using "health battery" app recorded and post here what you been doing with the battery then will talk liar.
The touchbar 15" models are quite a bit more efficient than their predecessors when at idle or low work states. My 2016 uses about 1/3 the power that my 2012 rMBP did when doing light web browsing or office work. The catch is that the smaller battery compared to the previous models means they run out of juice much quicker whenever something triggers a higher performance state. Using the Radeon GPU for anything is particularly harsh on battery life, but plenty of other things can cut into battery life significantly. I don't know if it's gotten better, but using any browser other than Safari used to shave hours off the runtime.
corrected and agreed. people here try to make other upset by said the had 10 - 12 hours battery time. how could that possible. common sense when you use VM at non stop (not stop and use again technic) at 75% brightness how could get 10 hours. which laptop on this world can do that. if want to tell lies please get a better one.
I'm apologize for my offended. I really can't stand those people keep their lying to make other upset. Just give an honest comment will be fined. I'm not said no one can't reach 10+ but not using 75% with more at intensive app like vm (running 2 windows at same time) or web surfing with highly extensive web with keep using trackpad moving. Short word depend what you do and what your setting.
So you're upset because people don't see it your way and are reporting what they're getting from their usage? You're comments have no value because you're saying others are wrong when clearly they're explain what their daily use is and reporting the results. It's called understanding the results. No one said if you use VM's all day and have 4 monitors connected that you get 10+ hrs.
So how about you calm down and actually read what people are saying instead of just focusing on the hrs that's being reported. And if you really want to be upset at someone for mentioning exaggerated battery life then get upset at the companies that report false hrs, not the people that give explanation of their use.
Making other upset?
The only one upset here is... you.
And please stop using the word "lying", nobody is doing that.