BEC-5-50 Battery Eliminator Circuit (Pro)
The Castle Creations BEC Battery Eliminator Circuit (BEC) is a little device that eliminates the need for a separate receiver and servo battery pack. It draws power from your higher voltage main pack (the motor batteries) and drops the voltage to a level that is suitable for your receiver and servos. This is required in applications which draw high power for multiple servos or use more than 3S motor packs, as most ESCs with linear BECs are not designed for these applications.
Peak Output Current: 20 Amps
Max Continuous Output Current (< 12V input): 7 Amps
Max Continuous Output Current (< 24V input): 5 Amps
Output Voltage: Output 5.1 volts out of the package, user
may set output voltage from 4.8 to 12.5 using the
Castle Link (sold separately)
Input Voltage: 4.8V to 50V (2S to 12S LiPo)
Length: 1.69” (43mm)
Width: 1.3” (33mm)
Height: 0.94" (24mm)
Weight: 1 oz (29 grams)
Detailed Specifications
Ratings are determined with a 5mph airflow on the BEC. Servo connectors are not rated for current in excess of 5 amps. Users are encouraged to replace the connectors if more than 5 amp currents are anticipated.
Power Input (Tamiya Battery Connector)
Power Output
(Dual Connectors)
BEC-5-25 Battery Eliminator Circuit
Peak Output Current: 10 Amps
Max Continuous Output Current (< 12V input): 7 Amps
Max Continuous Output Current (< 24V input): 5 Amps
Output Voltage: Output 5.1 volts out of the package, user
may set output voltage from 4.8 to 9 using the
Castle Link (sold separately)
Input Voltage: 5V to 25.2V (2S to 6S LiPo)
Length: 1.2” (30mm)
Width: 0.6” (15mm)
Height: 0.6" (15mm)
Weight: 0.4 oz (11 grams)
Detailed Specifications
Power Input
Power Output
Ratings are determined with a 5mph airflow on the BEC. Servo connectors are not rated for current in excess of 5 amps. Users are encouraged to replace the connectors if more than 5 amp currents are anticipated.
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