Re: [ARMini-support] ARMbook Battery Level
- From: Doug Webb <dougjwebb@xxxxxxxxxxx>
- To: armini-support@xxxxxxxxxxxxx
- Date: Fri, 06 Nov 2020 15:43:16 GMT
In message <58cb15e5afStuartlists@xxxxxxxxxxxxxxxxxxxxx>
lists <Stuartlists@xxxxxxxxxxxxxxxxxxxxx> wrote:
In article <025cb7db-a8cf-00d4-9e20-b86f54f853a3@xxxxxxxxxxxxxxxx>,
Chris Johns <chris@xxxxxxxxxxxxxxxx> wrote:
Hello
I was running the ARMbook on battery the other day (it's usually plugged
in). I noticed the battery level went down fairly quickly, but I decided
to just let it run the battery down to "flat". (are you meant to do that
with "modern" batteries?)
Even when it got to "0%" it still ran for at least an hour - probably
two. I am not sure if it's just getting a bit confused, or the battery
is just getting a bit tired.
Anyone else noticed anything similar?
I believe Andrew himself has commented on this, it seems to be normal for
the Armbook.
It does depend of course also on what you have plugged in to the USB ports
as well.
I have noticed it does seem to deplete a bit quicker now than when new
last year but still very good.
The only issue I have found is that on this machine if I have a USB to
Ethernet adaptor plugged in and also a portable wifi bridge then the
machine will reset itself when down to 80%-75% charge if any sound is
played or say Messenger/NetFetch is asked to do anything.
I have found that using a powered hub with a portable battery power bank
type device and plugging devices in to the powered hub gets around the
issue.
If I am using Linux and plug the devices directly in to the USB ports on
the laptop then I don`t get the same issue.
Which sort of points perhaps to a USB stack or power monitoring issue in
RISC OS?
Anyway I can live with that but it makes it a little less portable so roll
on native WiFi :-)
Doug
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