User's Guide

Development Kit User Guide – Rev11.0
9
ONBOARD CHARGERS
OUTPUT
VOLTAGE
(TO BATTERY)*
MAX
OUTPUT
POWER
OUTPUT
CURRENT
OC-110
7.92 - 30.1 VDC
90W
0.5 - 5A
OC-210
12.03 – 36.0 VDC
125W
0.5 - 10A
OC-250**
12.03 – 36.0 VDC
250W
0.5 - 10A
OC-300
0 - 58.4 VDC
300W
0.5 - 30A
*DC Output voltage and current is configurable within the specified range via WiBotic software or API.
**The OC-250 can be configured for higher output voltage up to 58.4V if required.
The total amount of power delivered to the battery is determined by both the maximum
power output and the maximum current output, based upon the voltage of the battery
being charged. Since there is a straightforward equation that relates voltage, amperage
and wattage (volts x amps = watts) we can use simple calculations to determine which
factor will ultimately determine your system’s power level and charge speed:
Example:
The user wishes to configure the OC-110 to charge a battery that reaches
12.6V when fully charged. In this case, the OC-110 will reach its 5A limit
before the 90W limit is reached, and power delivery will not exceed 63W.
12.6V x 5A = 63W
A different user wishes to configure the same OC-110 to charge a battery
that reaches 25.2V when fully charged. In this case, the OC-110 will reach
its maximum 90W limit before it can reach the 5A limit. Power delivery will
not exceed 90W and amperage will be a maximum of 3.57A.
90W / 25.2V = 3.57A
Note that the above values are representative only, and other factors such as antenna
coil position can also affect system efficiency and power delivery.
Finally, there is no risk in inadvertently setting the desired charge current above the
maximum level. In that case, the system firmware will limit operation to the maximum
power level that is safely achievable.
After fully reading this User Guide, please contact WiBotic if there are any questions
about the maximum power level available for your specific system.