Battery Life ?

[udflyer]

I am on my 1st charge.

1. My rMP came only 4% charged , anyone else that low?

2. After I went to 100%, I started working, downloading etc...Currently projecting 6:15 hours left at 95%....


Is that normal....seems low

 

[tillsbury]

The battery is likely to improve after the first few cycles. But more importantly you are installing stuff and spotlight is indexing. The first day or two is always going to be harder on the battery than normal.

 

[Cvx5832]

Battery life has been good so far. I keep the brightness as bright as I need it to be and yesterday I was on 10hrs with 63% still left on the battery.

 

[TheBuffather]

Battery life has been good so far. I keep the brightness as bright as I need it to be and yesterday I was on 10hrs with 63% still left on the battery.

Mind explaining this further? 10 hours and 63% left seems unbelievable to me. Not trying to be a jerk, but just wondering.

 

[Cvx5832]

Mind explaining this further? 10 hours and 63% left seems unbelievable to me. Not trying to be a jerk, but just wondering.

I run nothing intensive. I read mostly. I don't run benchmarks while on battery and have no more than 5 tabs open with Safari. I browse pictures on Photos, occasionally playing videos. I seldom play videos on a browser. I just read, read, read.

It's totally believable. In my case all that battery is driving is the screen. The rest of the computer is mostly asleep.

Edit: And you don't have 2x electric motors driving fans at minimum 2000rpm.

 

[TheBuffather]

I run nothing intensive. I read mostly. I don't run benchmarks while on battery and have no more than 5 tabs open with Safari. I browse pictures on Photos, occasionally playing videos. I seldom play videos on a browser. I just read, read, read.

It's totally believable. In my case all that battery is driving is the screen. The rest of the computer is mostly asleep.

Edit: And you don't have 2x electric motors driving fans at minimum 2000rpm.

I see. That's phenomenal. Still very hard to believe, but I do not doubt your word. Will have to give it a try on my MBr. Thanks for the additional info!

 

[Lobwedgephil]

To early for me to tell, since I am on the road and dropbox is still downloading ****. But I am thinking 7-8 hours battery from early impressions, not great, but okay.

 

[objektør]

I run nothing intensive. I read mostly. I don't run benchmarks while on battery and have no more than 5 tabs open with Safari. I browse pictures on Photos, occasionally playing videos. I seldom play videos on a browser. I just read, read, read.

It's totally believable. In my case all that battery is driving is the screen. The rest of the computer is mostly asleep.

Edit: And you don't have 2x electric motors driving fans at minimum 2000rpm.

Thanks. Good to know. This is how I'll use mine with some occasional iMovie and Sketchup.

 

[Cvx5832]

Thanks. Good to know. This is how I'll use mine with some occasional iMovie and Sketchup.

I forgot to mention the keyboard backlight. While I do use it, I have it go off after 10 seconds.

 

[GiantCow]

Sounds like how much charge is in the battery after unboxing varies. Is there a proper way to do a first charge on a Li-Ion battery? Let it run down pretty low first or just connect it to the charger straight away?

 

[newellj]

You will get lots of opinions about Li batteries but I think that the expert consensus is that running them down lower than ~1/3 is not good for the battery. It helps the software to calibrate the battery runtime/% charged so you may feel like you've improved battery performance, but that's not the same thing. I would charge it up fully out of the box.