SMART-STOP Li-Po Battery Cut-Off Circuit
read completely before installation or set-up
The Smart-Stop monitors the Li-Pos voltage & safely cuts off the ESCs throttle output when the voltage drops below a safe level--6.25V for 2-Cell Smart-Stop (#5470), 9.375V for 3-Cell (#5472), & 12.5V for 4-Cell (#5471).
Mounting Position--The Smart-Stop is best positioned near the ESC, as its main power leads (20G Red & Black silicone wires) connect easiest to ESCs battery power wire tabs (if ESC has solder tabs)--Smart-Stop can also connect to battery, battery connector, or batterys power wires. Based on where your Smart-Stop will connect, select a position where the unit can be mounted in the vehicle (do not mount at this time). Power Lead Connection--Measure and cut the Smart-Stops 20G RED & BLACK silicone power leads to the required length for where it is to be mounted. Strip & tin the ends of the power leads and solder to your ESCs RED (positive) & BLACK (negative) solder tabs--RED power lead to RED (positive) tab; BLACK power lead to BLACK (negative) tab.
When soldering leads to the tabs, make sure you do not short any of the tabs to each other--your electronics will be damaged! If connecting Smart-Stops power leads to battery, its connector, or battery wires, insulate solder joints & exposed wiring to avoid short-circuits. Note: When using 4-Cell Smart-Stop with the Novak HV Brushless ESC, connect power leads the same solder tabs as the ESCs Power Capacitor.
Input Harness Connection--Disconnect ESCs input signal harness from the receiver and plug it into the 3-pin header on the Smart-Stop--connect input harness with the WHITE wire toward the outside of the Smart-Stops PC board. The white/red/black sequence of ESCs harness should match Smart-Stops signal wires soldered to the opposite side of PC board--white over white, etc. Connect Smart-Stops harness to receiver throttle channel (#2), making sure wiring sequence matches the other receiver connections. Very old radio systems may require changing the wiring sequence in plug. Smart-Stop Programming--Sets transmitters neutral point into Smart-Stop. ESC should already be set-up & programmed to your transmitter (One-Touch on Novak ESCs). Motor wont run during set-up. With a charged battery pack in vehicle & transmitter turned ON: Press & Hold the Smart-Stops push button (under heat shrink) then turn on ESCs power switch-continue holding button until the Red LED comes on solid, then release button. Go to Full-Throttle position with transmitter & hold until the Green LED comes on solid, then return to Neutral. The Green LED will ash, then the Red LED will come back on, indicating that the Smart-Stop is programmed & ready. Mount Smart-Stop--Use the included double-sided tape or a tie-wrap to mount the Smart-Stop in vehicle. Mount label-side down if you want access to the push button & LEDs. Blue Indicator LED--Included with the Smart-Stop is a high-power Blue LED that can be mounted in the vehicle where its easy to see while running--antenna tube, shock tower, wing mount, or ream a hole in the body so it pops in from underneath. What To Expect During Operation--The Smart-Stop will start interrupting, or blipping the throttle as your Li-Po battery nears the critical safety voltage--Blue LED will also begin ashing. If you continue running and the critical voltage is reached, the Smart-Stop will completely shut off the ESCs throttle signal--you will still have full control of the steering.
PRODUCT WARRANTY: Novak Electronics, Inc. guarantees all products to be free from defects in materials or workmanship for a period of 120 days from original date of purchase (veried by dated, itemized sales receipt). In no case shall our liability exceed the products original cost. Warranty does not cover water damage, use with incorrect number of cells, incorrect installation, short-circuiting, or any damage to other electronics used in conjunction with the Smart-Stop. We reserve the right to modify warranty provisions without notice. 55-5470-1

Rooster 12T Reversible ESC 4-7 cells Ni-MH/Ni-CD (up to 8.4 volts), or 2S Li-Po (7.4 volts) Ideal for single-motor applications 4 Throttle profiles Single 12-turn motor limit 6-Volt /3-Amp BEC Built-in Li-Po Cut-Off Protection Built-in 6V accessory fan plug
Crawler Sensored Brushless Motor 4-7 cells Ni-MH/Ni-CD, or 2S Li-Po (7.4 volts) Designed for rock crawling applications Significant improvement over brushed setup Fully Adjustable hold or hill brake Extremely linear throttle response with tons of power For use with Novak Crawler ESC
Super Duty XR Reversible ESC 6-14 cells (7.2-16.8 volts) or 2S-4S Li-Po (7.4-14.8 volts) Perfect for dual-motor installations High-power reversible operation 3 Throttle programs (including FWD only) Dual-battery pack capability Ideal for Tamiya TXT & Clodbuster, Kyosho Twin Force, #1865 and Traxxas E-Maxx trucks (shown) Same footprint & screw pattern as Traxxas E-Maxx EVX ESC Novak Smart-Stop Li-Po Cut-Off Module recommended when using Li-Po cells Micro GT Micro Racing ESC 4-7 cells Ni-MH/Ni-CD Perfect for 1/16- 1/24th scale vehicles Same technology that powers the world-champion GTX ESC Pre-wired micro motor and battery connectors
HV High-Voltage Brushless System 6-14 cells (7.2-16.8 volts), or 2S-4S Li-Po (7.4-14.8 volts) Designed for dual-battery, high-power applications Same footprint & screw pattern as Traxxas E-Maxx EVX ESC Novak Smart-Stop 4-cell module included 3-Profile, high-voltage brushless ESC High-torque, sensored brushless motor Compatible with Kyosho Twin Force, Tamiya TXT trucks, and others #3020 (6.5-turns) One HV brushless motor replaces two #3021 (4.5-turns) 550 brushed motors!
2007 Novak Electronics, Inc. All Rights Reserved Product specifications and features are subject to change. E-Maxx is a registered trademark of Traxxas Corp. Twin Force is a registered trademark of Kyosho. TXT and Clodbuster are registered trademarks of Tamiya.