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Iaudio X5l/M5L battery life estimates.

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GSV3MiaC:
So a freshly charged battery on your comes in at only 4.1v?? Mine (M3L, 20GB, probably one of the last few made) comes in at 4.2v, and stays above 4.1v for s significant time (3 hours).

I can live with the (just slightly) whacky %age, but the whacky runtime estimate is far enough off to be annoying. I know that the batteries do not decay in a nice straight line, but even that would be a much better estimate than the current one. Possible the simplest quick fix would be to stick in a user provided scaling factor (or else, much harder but neater, calculate and store one on the fly).

I ONLY play .ogg, Q=1, and I have my own particular .wps, and I mess with the controls yea-often (hardly ever - they are in my pocket locked 90% of the time), with no remote, so the only really useful battery life measure for me is mine. I'd cheerfully tell it the answer (roughly (volts-3.6)*45 hours, as far as I can see), but there is noplace to feed this in.

GSV3MiaC:
OK, I finally managed to wear down my M5L battery - took a heck of a long time. This was playing .ogg at Q=1, with very little user interaction (but some!). However it looks like I can't submit the results to the wiki page without registering, which seems like overkill for one battery log entry, so I'm paasting it here and hopefully someone can get it to where it is needed?

As you can see, some modification of the estimates is required - the battery was at >100% for 3+ hours, and the run time estimate was off by 3x for most of the duration of the test.

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Rincewind:
If you don't mind doing a custom build, you can try a patch I wrote recently.
I can't access Flyspray at the moment, Search for "runtime scaling", then you should find it.
If I can access Flyspray again, I'll edit this post for the link.

The Patch adds a new new menu option, where you can set the maximum runtime you get on average. This value is then used to scale the runtime display.
Should be exactly what you need.

I think that this patch is useful even after a rewrite of the powermanagement, because runtimes between players always differ due to wear of the battery.
I haven't got much feedback on the patch, yet.

GSV3MiaC:
Thanks for the offer, but I don't have the time to mess with custom builds right now. I can apply my own scaling factor .. my runtime is ~88*(volts-3.6) hours, and I don't plan to ever get back down into the

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