SSD vs HDD Battery life

Anyone have any info on this? I'd like to see if I could collect some useful battery info for optimization of battery life.

Please state if R1 or R2.

Guys with SSD's what are you getting?

 

R1 here. I'm going to say not much if any difference. I got 6hrs 17min on 160g HD it comes with. 6hrs 21min on SSD (all same settings programs loaded etc, but me surfing messing around general usage, so the 4 mins difference would fall into the +/- category IMO) No real noticeable difference.

R-1, 4g Ram, 256g Crucial realSSD300. Nothing tweaked display on 1/2 brightness, keyboard backlight ON, Everything sitll enabled in BIOS (bluetooth, Network, etc...) Full battery rundown manually timed (not hovering over battery icon)

 

I have never noticed any significant difference in battery life on any laptop I have owned going from HDD --> SSD.

This includes M11x R2 (Western Digital Scorpio Black to OCZ Agility 120GB), Dell XPS M1330 (Hitachi Travelstar 7k320 to OCZ Vertex 120GB), Dell Latitude E4300 (Hitachi Travelstar 5K80 to Intel X25-M 80GB to OCZ Vertex Agility 120GB).

None of them showed any improvements in battery life. There may have been some. But if there was, then the improvement was so insignificant that it would have fallen into the margin of error.

 

Depends on the particular SSD.

Early SSDs (first gen vertex, agility, kingston, etc) were just as power hungry as a regular HDD.
Tom's Hardware
Tom's Hardware oops
OCZ onyx only pulls about 1w, but offers lower performance
More information

 

Thanks for the info guys & @ CapnBoost, wow thanks for the links. I wouldn't even have thought SSD's came close to 30dB's.

 

i notice little-to-no difference with my ssd.

 

I'm not sure but common sense tells me that the Hard Drive with NO moving parts (platters) will take less energy, thus longer battery life.

 

A CPU has no moving parts. Yet it consumes a lot more energy, and generates a lot more heat than every other mechanical component in your system combined.

 

true, but a SSD consumes less power then a mechanical drive for sure

and your cpu consumes most unless you got some 480M fermi's in there haha

 

An SSD does not consume less power than a mechanical drive. Several benchmarks have shown this, including this one here:
Seagate's Momentus XT Reviewed, Finally a Good Hybrid HDD - AnandTech :: Your Source for Hardware Analysis and News

Only the more recent SandForce-based SSD's show lower power consumption at load, consuming about ~1.0W under load instead of the 2.0W - 2.5W of other SSD's and HDD's.

As for power consumption - the LCD backlight consumes the most power. In a typical system doing desktop activities (applications, web browsing, etc), the LCD and backlight consumes anywhere from 25% - 40% of the power draw of the system, depending on brightness level and system usage. A CPU typically uses only 15% - 25% of the power draw in most cases, unless you are doing something extremely CPU intensive (CPU benchmarks, gaming).

 

Thanks for info guys! =]

 

They were all silent, the noise listed was for the whole system. That's why all of the SSDs had ~37dB.

Not necessarily. Once a spinny disk drive is spun up (or spun down) they are surprisingly energy efficient. Keep in mind they've been working on them for decades. SSDs tend to have higher idle power because all of that flash memory. This was the problem that the vista generation hybrid hard drives had. They pulled more power because of the additional consumption of the flash.