Hi Kerry,
Execute the battery percentage command more than once. I occasionally get
that faulty reading the first time I execute the command. Try it
again! You should see a percentage.
As for the reset button, it is your best friend, not your worst
enemy! Sometimes the BN must clear its brains before it can work properly
like you would clear your throat before you can speak properly. I think
once you are more confident in how to react to what your M-power is
telling you, you won't need to depend on that reset button as much as you
think you do. My Wife's BN stops writing for some reason and she has to
reset. It is fine once she resets her unit. Perhaps we will figure out
why it stops taking inputted data or we may need to do a more serious reset
to get rid of the gremland!
Jim
At 08:14 PM 10/09/2005 , you wrote:
I have only had my new Braillenote for a weekand a half and I have to keep
resetting it. Today, it said the battery gauge was faulty. Any suggestions
please?
Kerry
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Monday, 10 October 2005 10:32 AM
To: [email protected]
Subject: [Braillenote] battery calibration
Hi everyone on the list,
I've been at Humanware for a few months now and have been reading this
list, and thought I could clarify a couple of issues about battery
calibration, since that's one of the things I've been working on. Here's my
understanding:
Firstly, you don't have to do a battery calibration - it just helps the unit
keep track of exactly what your battery capacity is. All batteries degrade
with use and after 12 months you'd expect a reduction in capacity.
If you never calibrate your unit, it may think that the battery has more
juice left than it really does. If it was me, I'd probably try to do a
recalibration once every few months and leave it running overnight so I
don't have to listen to it . In addition, some battery types (including
NiMH which the mPower uses) need a few full charge cycles before they reach
full capacity - for example, this is what the instructions for my electric
drill said.
Secondly, the mPower and BrailleNote classic systems measure remaining
charge in different units. mPower gives a reading of how many milliAmpere
hours it thinks are left in the battery. So a battery with a design
capacity of 1800 mAh will probably reach the 1700 - 1800 mAh range. The
classic doesn't read in milliampere hours but just reads off the information
directly from the fuel gauge chip - the one I'm playing with now goes says
it's last discharge was 27,000-ish. So don't worry if your mPower doesn't
go up as high as that - it's not supposed to.
hope that's useful! I'm copying Dean on this in case he wants to add to or
clarify my clarification <grin>
regards,
Andy.
----
Andrew Riden
Software Development Engineer
HumanWare Ltd
11 Mary Muller Drive,
Christchurch ,
New Zealand .
DDI +64 3 940 2264
Fax +64 3 384 4933
Email: [EMAIL PROTECTED]
Internet: www.humanware.com
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