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The Ultimate BEC is an external circuit, which gets its power from your battery pack and regulates the voltage to the necessary 5 volts or 6 volts to power your receiver and servos. It replaces the BEC function in a speed controller when it is Opto Isolated type or the input voltage is higher than the on board BEC chip’s supply voltage limit
It can handle up to a 18 cell battery pack ( 23 volts input MAX)
It can power up to 4amp continuous.
Weight:12g(w/ wires).
Input voltage:7.2V to 23V
Output voltage:5 V/6 V, adjusted by jumper..