[T30]What is "settings -> display -> battery select" for? What is its purpose?

[blagoyborisoff]

What is settings -> display -> battery select for? What is its purpose? When I change it to rechargeable I thought the battery will charge from the USB cable but it didn't or I'm wrong?

[Lord Julius]

From your helpful manual:
"You can set <RECHARGEABLE> or <ALKALINE>.
The player will manage the battery indicator icon to better match
the usage level."

It's occasionally useful to read those things.

[blagoyborisoff]

I read them but I can't understand what is this for - "icon to better match
the usage level" ? There is no sense of this menu item if it doesn't affect something. Please explain what will change if I turn it to alkaline or rechargeable. I tryed both but even when I choose rechargeable and plug in my USB the battery doesn't recharge from it.

[DD]

I think LJ means it adjusts the battery-level bar to give a more accurate representation of the remaining battery power, because in general rechargables will last longer than alkalines.

[mattn]

As a battery's charge is used up, the voltage it gives off drops slightly, following a curve.

The only way the player has of estimating how much power is remaining, is the slight drop in voltage.

This curve is completely different for alkaline batteries and NiMH batteries, as is the initial voltage. So in order to determine how much use the battery has left, the player needs to know what type of battery it has.

If you don't set this setting correctly it will have no effect on the player's behaviour, it just might show a misleading value on the battery level indicator.

because in general rechargables will last longer than alkalines

Actually, alkalines will retain a charge for something like 10 years, whereas an NiMH battery will lose its charge steadily over a couple of months (and needs to be recharged regularly to keep it in good condition). In terms of capacity, the capacity is slightly higher for an alkaline. The myth that NiMH batteries last longer comes from the fact that Alkalines perform very badly in high power devices like digital cameras. When you subject an alkaline battery to high drain, it won't deliver (which is why NiMH lasts 4 times longer in digital cameras). However, alkalines should last a very long time in an MP3 player.

More info: http://www.greenbatteries.com/chart.html

[blagoyborisoff]

Thank you. I understood finally

[Lord Julius]

Sorry, I think I'm so used to struggling with bad translations
of Korean handbooks that I thought the meaning was clear.
Sometimes I wonder, would it really rise the costs of a player
that much to have a native speaker translate the manuals

[prongs131]

well it doesnt mean that u can get ur batteries charges from USB, at least thats clear too.