Battery Life Monitor

[markp99]

Mac newb here (RMBP, 16GB, 256GB, 2.3GHz)

I am reading the RMBP should have up to 7hr of battery life. I understand this could be possible with low brightness and lightweight duties, etc.

Reality for me ~feels significantly less, even with light duty browsing, email, etc., my gut tells me I am seeing more like 3 hours, but I have no facts to back that up. Brightness at 50%, chassis is barely warm when I am using the machine.

Are there any battery life apps out there that will clock up-time between full charges? And then, what might e the primary consumers - like a few Android battery apps i have seen. I do have iStat Pro running, but this does not provide such a feature.

Any suggestions, I am just curious. I may be way off on my estimate, but I started off fully charged last night around 6pm, poked around email & web a bit, in a few separate, short-ish sessions. Right now, on first look this morning, I am already back to 34%.

Hmm, expected better. But, again, I may just not be fully accounting for actual time.

 

[Auzburner]

Well, leaving it on will drain the battery throughout the night. Granted, it will eventually sleep. Verify you energy settings in System Preferences and adjust accordingly.


Also, try Coconut battery
http://www.coconut-flavour.com/

It's simple, but I don't think it gives you how many hours to drain battery. You may find it useful.

 

[markp99]

Well, leaving it on will drain the battery throughout the night. Granted, it will eventually sleep. Verify you energy settings in System Preferences and adjust accordingly.


Also, try Coconut battery
http://www.coconut-flavour.com/

It's simple, but I don't think it gives you how many hours to drain battery. You may find it useful.

Thanks, I do have the coconut app. Also, no such feature.

I put the RMBP to sleep when I am finished (by closing the cover). I assume this is the correct approach to putting to sleep, vs click the options.

I do understand that even while sleeping hr Mac will consume a trickle of change, but not significant % points overnight, right??

 

[Dangerous Theory]

You could always fully charge it and play around for a little bit and see what the battery life estimate says. Of course it's not 100% accurate, but definitely a reasonable estimate.

 

[surjavarman]

You should get around 5-6 hours of battery life on the dedicated graphics card. About 7 hours on automatic switching (in the systems prefs). And more than 8 hours if you use gfxcardstatus to force your rMBP to use integrated only.

 

[Auzburner]

Thanks, I do have the coconut app. Also, no such feature.

I put the RMBP to sleep when I am finished (by closing the cover). I assume this is the correct approach to putting to sleep, vs click the options.

I do understand that even while sleeping hr Mac will consume a trickle of change, but not significant % points overnight, right??

I would say it should lose no more than 5% overnight. Focus on keeping brightness down when in use.

 

[TickleMeElmo]

If you run anything with flash such as youtube you can kiss all semblance of good battery life goodbye.

 

[GGJstudios]

Reality for me ~feels significantly less, even with light duty browsing, email, etc., my gut tells me I am seeing more like 3 hours, but I have no facts to back that up. Brightness at 50%, chassis is barely warm when I am using the machine.

There are many factors that impact your battery life. See the BATTERY LIFE FROM A CHARGE section of the following link for details, including tips on how to maximize your battery life.

This should answer most, if not all, of your battery/charging questions:

Apple Notebook Battery FAQ​

I would say it should lose no more than 5% overnight.

Typical sleep drain is about 1% per hour of sleep.

 

[surjavarman]

There are many factors that impact your battery life. See the BATTERY LIFE FROM A CHARGE section of the following link for details, including tips on how to maximize your battery life.

This should answer most, if not all, of your battery/charging questions:

Apple Notebook Battery FAQ​

Typical sleep drain is about 1% per hour of sleep.

BS. Standby time is approximately 30 days in sleep. This would translate to a battery drain of around 0.14% per hour or about 1.1% for an 8 hour sleep.

 

[GGJstudios]

BS. Standby time is approximately 30 days in sleep. This would translate to a battery drain of around 0.14% per hour or about 1.1% for an 8 hour sleep.

I didn't say 1% per hour of standby mode. I said 1% per hour of sleep, which is accurate.

 

[Hungry&Foolish]

Mac newb here (RMBP, 16GB, 256GB, 2.3GHz)

I am reading the RMBP should have up to 7hr of battery life. I understand this could be possible with low brightness and lightweight duties, etc.

Reality for me ~feels significantly less, even with light duty browsing, email, etc., my gut tells me I am seeing more like 3 hours, but I have no facts to back that up. Brightness at 50%, chassis is barely warm when I am using the machine.

Are there any battery life apps out there that will clock up-time between full charges? And then, what might e the primary consumers - like a few Android battery apps i have seen. I do have iStat Pro running, but this does not provide such a feature.

Any suggestions, I am just curious. I may be way off on my estimate, but I started off fully charged last night around 6pm, poked around email & web a bit, in a few separate, short-ish sessions. Right now, on first look this morning, I am already back to 34%.

Hmm, expected better. But, again, I may just not be fully accounting for actual time.

Battery Logger in the Mac app store for 1.99$.

 

[markp99]

Battery Logger in the Mac app store for 1.99$.

Nice, that comes very close!