I did this mod, too. It works. Thanks for the ground work!
I recognized that the battery is drained quite a lot. But I guess that drain mostly happens when turning the player on.
First I noticed that the batterie level just after booting the player was much lower than after maybe 1-3 minutes later (idle or playing some music). That behaviour is present with a hdd as well but not as stark.
In this case the battery level was 84% just after booting, after a few minutes it was "back" at 96%.
I checked the power consumption of the ssd using an external sdd case. When powering up it's somewhere between 2 and 2,5W. After the drive is recognized by Windows (in idle mode) the power consumption goes down to 0,75W.
Judging from the temperature of the ssd I guess the most of the power consumption comes from the ssd not from the external case's controller.
I for one couldn't transfer all the files to the ssd (installed in the H140) unless I had a fan cooling the drive. Otherwise it would freeze the transferring process. So I guess it's about the temperature of the ssd.
I haven't yet tested long playing runs. I suspect that in playing mode the battery consumption is or might be lower than with a hdd. But for now I also think it's fact that the booting process consumes mor power than with a hdd. I had the player with the same battery running with a Toshiba MK2431GAH for the last 4 years, so that's my comparison.
Has anyone else observed a similar change of power consumption using the Samsung mSATA-SSD 1TB?
I did some more monitoring. I transfered some more files. It took about 2,5 mins. Before the transfer the battery level was about 74-75. At the end of the transfer process it was 31! After a few minutes it was back to 70.
I also observed that while playing the level dropped from 70 to 64. Then it stayed there quite long. That's only to show my obeservation that the level stays a long time at the same number, then drops 4-5 points and stays there quite a while.
I haven't done specific observtions while using the hdd, but I always thought the battery level was dropping quite evenly.
Switching of at 64 and switching back on a few hours later the first number for the battery level after booting is 46 and rises back to 60 while playing .flac within 5 minutes.
Again, this happens with a hdd as well, but not to these extremes, as far as I can recall.
Btw: Samsung states some 3,84W as max. power consumption for this 1TB mSATA-SSD. So, this supports my findings.
FYI: The Toshiba MK2431GAH hdd, measured using an external adapter with the pc, needs some 1,87W on startup and 0,65W in idle mode.
Seems like the cool 1TB-H140 comes at a price, namely reduced battery life.
Now that the first full cycle is done (battery completely emptied), I can report the following:
Two more battery level observations:
Boot to level 9, then within the first 30 sek -> 7 -> 5 -> 3 -> 2 -> 1. Within the next 3-5 minutes recovery to level 28. Maybe 1,5-2h of playing (.ogg) before shutting down (by user).
Boot to level 7, then within the first 30 sek -> 3 -> 2 -> 1 -> 0 -> [no number]. Within the next 3-5 minutes recovery to level 13. While playing (.ogg) it stayed at 13 for at least one hour before going down to 8 in (most probably) one step.
Total playing time for the full load of the battery until the player shut down because battery was "empty", with maybe 12 (20 at the most) (re-)boots, playing .ogg and .flac files when switched on, was 18h 41m.
I'm not sure if this is still the original battery that came with the player about 10 years ago or if the iriver service changed it in 2007 when I sent it in to get something else repaired. In any way, the playing time is about the same as with the 240GB hdd (somewhere between 16-18h, can't remember more specifically). The player is used on an almost daily basis - I'd say 1h a day on average. So, the battery has been used quite a lot.
I'd say, depending on how often one is used to reboot the player, the 1TB-SSD mod has a shorter or longer, respectively, battery life compared a conventional hdd. When playing continuously with one charge the battery life should be exeptionally long, I suspect.