Hacking DSTWO power consumption

[topicaltapioca]

Any unbiased tests done on this?

Does it ALWAYS use the extra internal CPU?

 

[YayMii]

Xenon++ and I did some tests a while ago.
The DStwo always uses the CPU, and it shaves off about 15-20% of your battery life.

 

[NinjaMic]

Xenon++ and I did some tests a while ago.
The DStwo always uses the CPU, and it shaves off about 15-20% of your battery life.

Yikes.....hows that looking for a 3 month old DS Lite?

 

[YayMii]

Xenon++ and I did some tests a while ago.
The DStwo always uses the CPU, and it shaves off about 15-20% of your battery life.

Yikes.....hows that looking for a 3 month old DS Lite?

Depends on your usage.
You lose a max of 1 hour of battery life IIRC.

 

[tomrev]

Xenon++ and I did some tests a while ago.
The DStwo always uses the CPU, and it shaves off about 15-20% of your battery life.

Do you mean SCDS2 CPU always run regardless of its need to operate or not. I mean it has no sleep state that wasted power consumption, right?

I guess you mean testing on topic - > http://gbatemp.net/t237948-dstwo-battery-killer?&st=15 (sorry, if I'm wrong) that discuss about SCDS2 battery.
This test is good and useful but there is 2 points that I feel not right. First, test by turning DS brightness to MAX because it need to test SCDS2's battery consumption , not DS power consumption. That should get rid of irrelevant factor as much as possible to get the best result. Second, no comparison test between "DS & SCDS2" and "DS & normal cartridge" but use official battery life instead, it's unreliable to test with different environment.

 

[9th_Sage]

Do you mean SCDS2 CPU always run regardless of its need to operate or not. I mean it has no sleep state that wasted power consumption, right?

At the very least, it clocks the CPU down (there are 4 supported levels, with the highest being ~400 mhz). I'm not really sure if it ever shuts down completely.

 

[FAST6191]

For what it is worth I found most flash carts draw extra idle power (I know this is for EZ but I since found an R4 clone and a few others to test with although I did not test as thoroughly as the following)-
http://ezflash.sosuke.com/viewtopic.php?f=16&t=15020 scroll down