Rx6x Monitor 1s lipo in Voltage Booster


Single cell lipos (1S) are a convenient power source because they are cheap, available in many sizes, and do not require balancing. Lipos are charged to 4.2v and used down to 3.0v. This is often not enough volts to power a motor. Voltage boosters can increase the voltage but these don't usually have low voltage protection. Lipos are damaged if their voltage falls too low.

This feature allows the Rx to be powered with the boosted voltage and monitor the voltage of the lipo with a separate input. The Rx will cut power to the motor when the lipo voltage falls to 3v.

This feature is not intended to be used when powering the Rx direct from 1 lipo.


Connect the boosted voltage to the +-/ pads on the receiver. Connect the + terminal of the lipo to the L pad on the receiver. The receiver will 'auto-detect' that the L pad is in use. See here for receivers that do not have an L pad.

Rx61 example


This feature and the wiring diagram assumes that the negative path is 'straight through' the voltage booster. Put another way, negative on the input of the voltage booster must be 'common' with negative of its output. This is usually easy to confirm by visual inspection.

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