Koala 2.5 User Manual Rev 1.1
16
4.2.2
Li-Pol battery
The Li-Pol battery can be charged either on the Koala itself (using the
external power supply) or externally with the external charger. When
charged on the Koala, the indication of the charge (Charge LED) is only
available when the Robot is powered on. The LED is red when the charge is
in progress and it turns to green when the charge is complete.
Nominal voltage
: 11.1V
Charging voltage
: 12.6V
Cut-off voltage
: 9V
Nominal capacity
: 5000mAh
Max discharge current
: 25000mA (5C)
Charging current
: 2000mA
Time for a complete charge
: about 4 to 5 hours
Li-Pol Battery specification
With this kind of battery, the koala is able to run completely autonomously
during more than 2.5 hours with the motors on and 4 hours with motors off,
running with a basic configuration.
There’s no specific power management on the Koala, the battery will
automatically cut-off when the voltage drops below 9V.
4.2.3
Li-Pol External charger
The Li-Pol External charger embeds the same charging system as the Koala.
The charge duration will be exactly the same as with on-board charging. The
only difference will be the LED.
On the external charger, there’s only one red LED which turns ON when the
battery is in current regulation mode. When switching to voltage regulation,
the LED turns off. This means the battery is approximately at 90% of full
charge. To complete a full charge, keep the charger connected around 1h
after the red LED turns off. The polarity of the charger is defined by its two
polarizing slots.
Figure 4.3: Li-Pol External charger
Do not connect this charger to a NiMH Koala battery.
Summary of Contents for Koala 2.5
Page 1: ...KOALA 2 5 User manual Revision 1 2...
Page 49: ...Koala 2 5 User Manual Rev 1 1 46 7 Mechanical drawings Unit is mm Figure 6 1 Top view...
Page 50: ...Koala 2 5 User Manual Rev 1 1 47 Figure 6 2 Right view Figure 6 3 Front view...
Page 53: ...K Team S A Z I Les Plans Praz 28 1337 Vallorbe Switzerland...