Smart-Fly TurboReg Unit, 17.5A Failsafe option provides the user with battery redundancy, an adjustable regulator and failsafe operation with the optional remote on/off switch and for aircraft with engines of 100cc size and up. The TurboReg provides the highest power density of any available regulator for giant scale aircraft. The TurboReg combines several features into one lightweight unit. It has dual battery inputs with isolation between the two batteries. In case of a catastrophic failure of one battery the other can continue to supply power to the aircraft. The TurbrReg has dual regulation transistors with a common control circuit. The dual transistors share the current through the regulator resulting in a more reliable regulator. The TurboReg also has dual output connectors for redundancy when connecting to a PowerExpander. All power input and output connectors are Deans UltraPlugs to handle the high current the TurboReg is capable of handing. The TurboReg’s output voltage is continuously adjustable from 5.2 volts to 6.5 volts and can supply 17.5 amps continuous current when the input voltage is 8.4 volts and the regulator is set to an output voltage of 6.0 volts. The TurboReg uses a computer-grade brushless fan to provide active cooling of the regulator. The TurboReg also has failsafe operation with the optional remote on/off failsafe-switch. The switch actually turns the failsafe regulator on and off and does not carry the system load current. If the switch * Small: 2-3/4 x 2-1/4 inches * Lightweight: 2.9 oz * 17.5 amps with 8.4 volts in and 6.0 volts out. * Dual Battery Inputs With Battery Isolation * Continuously Adjustable Output Voltage: 5.2-6.5 Volts * Individual Charge Leads * Failsafe operation with remote on/off switch * Computer Grade Brushless Fan * CAUTION: When the regulator is operated with the optional failsafe-switch it presents a slight load to your battery even when off. This load is 0.4mAH or about 10mA out of your pack for each 24-hour period. You should disconnect the battery if you the plane will be sitting for more than a couple days.