Power and battery
The MB Tutor has an internal rechargeable battery. A universal power supply is provided,
which, when plugged into the mains, will recharge the battery; simultaneously, it gives
power to the unit. It connects to the MB Tutor through the round connector on the right-
hand side of the unit that is closest to the back.
You cannot over-charge the battery, and leaving the unit permanently charging will not
damage it in any way. Still, to maintain exact information on charge level, you may want to
discharge the battery from time to time. You will typically get a full day of use out of the
battery for regular classroom use. When you do this, please recharge Tutor overnight, so it
is ready for the next day's work (unless you find out that your battery is good for several
days, which happens quite often if you don’t emboss too many pages while working on the
battery).
How to check battery status
Whenever the Mountbatten is switched on, the battery status is spoken. You may check it
manually by pressing M chord (Space + D134 = Press all four keys together: Space, dot 1,
dot 3, and dot 4).
The MB Tutor will also tell you the percentage of the battery charge and if it is charging or
not. If the battery is flat, embossing will stop.
Note
: The causes of a flat battery are:
•
The battery hasn’t been charged. Connect to power for 4 - 8 hours.
•
The wrong power supply is being used (all MB-Tutor units are supplied with a
proprietary power supply 110v – 220v Output 15-19VDC 5.5Amp, 90W).
•
The power cable could be broken.
•
There could be no power coming through the wall outlet.
•
The battery is damaged and needs replacing (expected life four years, but after two
years of use, its health may worsen and lose some of its capacity).
How to check keyboard battery status
The keyboard battery status can be checked by pressing K chord (Space + D13 = Space,
dot 1, and dot 3). The system will read the battery charge as a percentage of full charge.
The keyboard itself will answer with a series of lower and higher pitch beeps that have the
following meaning:
- lower pitch beeps sounding first:
- 4 short - the battery is charged in more than 80%
- 3 short - the battery is charged in more than 50% but less than 80%
- 2 short - the battery is charged in more than 20% but less than 50%
- 1 long - the battery is charged less than 20%
- higher pitch beeps sounding after the lower pitch beeps:
- single - charging
- battery fully charged
The keyboard beeps will sound even if there is no connection to the main unit.
Powering On/Off Mountbatten Brailler Tutor
To power on, it takes a short press of the On/Off button in front of the main unit – near the
left edge. The main operation starts in a few seconds.
The advanced functions (synthetic speech, games, calendar, Internet connectivity, some
other unit management features) start automatically within 2 - 3 minutes. You will hear
"Advanced Mountbatten Brailler Tutor functions are available now" when the full
functionality is on.
Mountbatten Brailler Tutor User Manual v. 1.0.3
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