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Subject: Re: battery-safe bootloader

Re: battery-safe bootloader

From: Miika Pekkarinen <>
Date: Mon, 10 Apr 2006 08:46:46 +0300 (EEST)


On Mon, 10 Apr 2006, Jvo Studer wrote:
> The only thing this patch adds is a battery voltage check (3.3V) during
> booting and if it is too low it refuses to start. It then just switches
> off without even spinning up the harddisk. This prevents possible deep
> discharge of the lithium polymer battery. Normally the iriver hardware
> cuts off power if voltage gets below 2.6V or so but it's even better
> not to let this happen.

Generally that sounds like a good idea, but there must be a way to
override this check. For example a failure in the battery voltage monitor
sensor could prevent booting entirely (i have heard that at least one unit
had such a defect).

Miika Pekkarinen <>
Received on 2006-04-10

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