battery dies quick

[delorean90]

my battery has been diying very quickly, what happens is that after a full charge an hour later at a random point the voulume shoots to 6db and then it turns off, this is very annoying, im not sure if it is the battery or the firmware, could anyone help? and yes it has a recent build on it, from a week ago if i remember correctly

[Llorean]

I assume you have an H10, as you've not told us what player this problem is with, but it's clear you at least have an H10 from your signature.

I'll start by saying "a week old" is not a recent build. Rockbox changes quickly enough that if you're experiencing something you think is a bug, you need to update to the current build and try to verify it.

But this is something you need to test in the original firmware, to see if you're getting poorer battery life than you used to there. Also, a battery_bench in Rockbox might provide some information.

The volume shooting up is most likely because the H10 touchpad seems to act strangely when it has low power.

[delorean90]

the player completely dies at 50%, i cant update at the moment because the computer freezes everytime i plug my h10 in

[evermore]

I have experienced this also, the battery is at full and then an hour later the volume shoots up to the maximum, player doesn't respond to pressing any buttons then it turns off. Then about 20 minutes later I can turn it back on and get another hour's playing time (so the battery doesn't really die as it's not at 0%, but Rockbox just behaves like it's died).

Recently I switched back to original firmware and the battery does last longer with the original firmware.

I have just updated the bootloader and the build to the current build so we will see if that makes a difference. But yes I can concur that the issue is rather annoying.

[DanManners]

I believe it's called an MP3eizure.

Sorry, I had to say that.

-Dan

[delorean90]

i have updated to a recent build and i have even tested battery life on the original firmware, and it definately seems like a rockbox problem. i love all the new features on rockbox and i do not want to have to rollback to a build before march 20th, i understand everyone is busy but if someone could fix this problem i would highly apreciate it

[Llorean]

Tell us exactly what part of the hardware initialization is incorrect, and we'll gladly fix it.

Nobody has denied that the H10 gets poorer battery life with Rockbox, because ALL PortalPlayer targets do, this is very well known.

[delorean90]

well, i am not sure as to the specific hardware problem. but it is getting signifigantly lower battery life recently (i would say since the new bootloader on march 20th). i used to get maybe 5-6hours out of rockbox, but now i get about an hour max, it is definitiely not my battery because i have tested the original firmware and got 8-10 hours (the factory battery life) i would downgrade to a version before march 20th, but the files simply do not exist anymore to make tha possible, i also cannot switch to the OF because that would mean re-organising my entire library.

[Llorean]

Alright, with an official bootloader and official (no patches) build of Rockbox, running an actual battery bench, could you post the results of that?

[delorean90]

i did the batter bench although i forgot to clear the settings, so this isnt completly accurate, but it gives a rough estimate of how serious the problem is


This plugin will log your battery performance in a
file (/battery_bench.txt) every time the disk is accessed (or every hour).
To properly test your battery:
1) Select and playback an album. (Be sure to be more than the player's buffer)
2) Set to repeat.
3) Let the player run completely out of battery.
4) Recharge and copy (or whatever you want) the txt file to your computer.
Now you can make graphs with the data of the battery log.
Do not enter another plugin during the test or else the logging activity will end.

P.S: You can decide how you will make your tests.
Just don't open another  plugin to be sure that your log will continue.
M/DA (Measurements per Disk Activity) shows how many times
data was logged in the buffer between Disk Activity.

Battery type: 1550 mAh      Buffer Entries: 1000
 Â Time:,  Seconds:,  Level:,  Time Left:,  Voltage[mV]:,  M/DA:, C:, U:
00:00:44,  00044,     100%,     08:51,           4290,     0001,  -,  -
00:00:56,  00056,     100%,     10:41,           4280,     0001,  -,  -
00:01:12,  00072,     100%,     10:41,           4270,     0002,  -,  -
00:01:28,  00088,     100%,     10:41,           4260,     0003,  -,  -
00:01:57,  00117,     100%,     10:41,           4250,     0004,  -,  -
00:02:17,  00137,     100%,     10:41,           4240,     0005,  -,  -
00:03:13,  00193,     098%,     10:34,           4230,     0006,  -,  -
00:03:17,  00197,     100%,     10:41,           4240,     0007,  -,  -
00:03:21,  00201,     098%,     10:28,           4230,     0008,  -,  -
00:05:05,  00305,     096%,     10:15,           4220,     0009,  -,  -
00:05:33,  00333,     098%,     10:28,           4230,     0010,  -,  -
00:05:37,  00337,     096%,     10:15,           4220,     0011,  -,  -
00:06:21,  00381,     095%,     10:09,           4210,     0012,  -,  -
00:07:29,  00449,     093%,     09:56,           4200,     0013,  -,  -
00:07:33,  00453,     095%,     10:09,           4210,     0014,  -,  -
00:07:37,  00457,     093%,     09:56,           4200,     0015,  -,  -
00:07:41,  00461,     095%,     10:09,           4210,     0016,  -,  -
00:07:45,  00465,     093%,     09:56,           4200,     0017,  -,  -
00:07:53,  00473,     095%,     10:09,           4210,     0018,  -,  -
00:07:57,  00477,     093%,     09:56,           4200,     0019,  -,  -
00:08:57,  00537,     091%,     09:43,           4190,     0020,  -,  -
00:09:41,  00581,     090%,     09:37,           4180,     0021,  -,  -
00:10:09,  00609,     091%,     09:43,           4190,     0022,  -,  -
00:10:13,  00613,     090%,     09:37,           4180,     0023,  -,  -
00:10:21,  00621,     091%,     09:43,           4190,     0024,  -,  -
00:10:29,  00629,     090%,     09:40,           4180,     0025,  -,  -
00:11:37,  00697,     088%,     09:30,           4170,     0026,  -,  -
00:11:41,  00701,     090%,     09:30,           4180,     0027,  -,  -
00:11:57,  00717,     088%,     09:24,           4170,     0028,  -,  -
00:12:21,  00741,     087%,     09:21,           4160,     0029,  -,  -
00:12:29,  00749,     088%,     09:21,           4170,     0030,  -,  -
00:12:41,  00761,     087%,     09:18,           4160,     0031,  -,  -
00:13:09,  00789,     085%,     09:05,           4150,     0032,  -,  -
00:13:29,  00809,     084%,     09:01,           4140,     0033,  -,  -
00:13:33,  00813,     085%,     09:05,           4150,     0034,  -,  -
00:14:17,  00857,     084%,     08:58,           4140,     0035,  -,  -
00:15:05,  00905,     082%,     08:45,           4130,     0036,  -,  -
00:15:37,  00937,     081%,     08:42,           4120,     0037,  -,  -
00:16:29,  00989,     080%,     08:33,           4110,     0038,  -,  -
00:17:33,  01053,     077%,     08:13,           4100,     0039,  -,  -
00:18:21,  01101,     075%,     08:01,           4090,     0040,  -,  -
00:18:53,  01133,     072%,     07:51,           4080,     0041,  -,  -
00:18:57,  01137,     075%,     08:01,           4090,     0042,  -,  -
00:19:05,  01145,     072%,     07:41,           4080,     0043,  -,  -
00:19:29,  01169,     070%,     07:28,           4070,     0044,  -,  -
00:19:33,  01173,     072%,     07:41,           4080,     0045,  -,  -
00:19:45,  01185,     070%,     07:28,           4070,     0046,  -,  -
00:20:29,  01229,     068%,     07:16,           4060,     0047,  -,  -
00:20:50,  01250,     066%,     07:09,           4050,     0001,  -,  -

at the last entry the volume shot to 6db, the backlight flickered dimness for 10 seconds and then it turned off

[Llorean]

At 4.05V your player should have far more than enough power to stay active. The volume shooting to 6db is what happens when the touchpad doesn't receive enough power.

Try running the same playlist in the original firmware, and see how long you get, and if it acts weird at the end too.

[delorean90]

is there any explination as to why the volume battery decreases at that rate?



p.s. sorry llorean ment to say battery

[Llorean]

What exactly are you asking? The volume increases, not decreases, and it's due to a problem with the touchpad itself, when it doesn't receive enough power it scrolls upward. If you're in a different screen, different things will happen.

[delorean90]

i am posotive it is the rockbox firmware at this point, i played on the OF for around 3 hours and still had full battery, but what confuses me is why this bug is so rare and that others arent expieriencing the same problem in a larger amonut

[Llorean]

I asked you to do a FULL test of the original firmware. You've proved that "the original lasts 3 hours" which isn't very much. If the battery is faulty, the display might not be reliable either.

Please, just go through actual testing, rather than jumping to conclusions at each step.

The reason other people aren't experiencing this is most likely that there's a difference in your player. You still haven't convinced me your player is fine, and have shown significant unwillingness to attempt to do so.

The next step after that is to figure out why your player shuts down at such a high voltage. A battery benchmark from a working H10 would be helpful for this step.