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sikeston34m · 01.12.2009, 12:17 AM

OK, here's more information:

http://www.teamnovak.com/products/es...oat/index.html

GOAT BRUSHLESS/BRUSH CRAWLER ESC SPECIFICATIONS
Forward/Reverse: Forward, Drag Brake, Reverse
Input Voltage: 4-7 Ni-Cd/Ni-MH cells (1.2V/cell) or 2S Li-Po cells
On-Resistance: 0.0012 ohms* (brushless per phase); 0.0012 ohms* (brushed)
Footprint: 1.18” x 1.54” (30 x 39 mm)
Weight(w/o wires): 1.49 oz. (42.2 g)
Rated & Braking Current: 120 amps* (brushless per phase); 120 amps* (brushed)
Power Wires: 14-Gauge
BEC: 6.0 volt/5.0 amp
Motor Limit: 18.5-turn (brushless); 27-turn stock motor (brushed mode)
Discrete Steps: 512 Forward; 512 Reverse
Battery/Motor Plug: Tamiya (battery); None (motor)
Voltage Cut-off: 6.25 volts (when Li-Poly Cutoff Circuitry is enabled)

So this ESC does have a LVC IF it was enabled.

Here's an exerpt from Wikipedia on charging Nimh. (Simply to show the voltage tolerance of this ESC)

http://en.wikipedia.org/wiki/Nickel_...ydride_battery

Charging

NiMH Charge curve - The charging voltage is in the range of 1.4–1.6 V/cell. A fully charged cell measures 1.35–1.4 V (unloaded), and supplies a nominal average 1.2 V/cell during discharge, down to about 1.0–1.1 V/cell (further discharge may cause permanent damage). In general, a constant-voltage charging method cannot be used for automatic charging. When fast-charging, it is advisable to charge the NiMH cells with a smart battery charger to avoid overcharging, which can damage cells and cause dangerous conditions.

So the Novak Goat ESC works with 7 cell Nimh packs. A fully charged 7 cell pack will be at 9.8 volts when you first pull it off the charger. Plenty of tolerance for a 2S Lipo pack.

The Pack in question probably encountered a HUGE Amp load (dead short) OR No Low Voltage Cutout was used. If No LVC was used, then it was ran until completely dead.

	(#7)
sikeston34m RC-Monster Brushless Offline Posts: 2,085 Join Date: Sep 2007	01.12.2009, 12:17 AM OK, here's more information: http://www.teamnovak.com/products/es...oat/index.html GOAT BRUSHLESS/BRUSH CRAWLER ESC SPECIFICATIONS Forward/Reverse: Forward, Drag Brake, Reverse Input Voltage: 4-7 Ni-Cd/Ni-MH cells (1.2V/cell) or 2S Li-Po cells On-Resistance: 0.0012 ohms* (brushless per phase); 0.0012 ohms* (brushed) Footprint: 1.18” x 1.54” (30 x 39 mm) Weight(w/o wires): 1.49 oz. (42.2 g) Rated & Braking Current: 120 amps* (brushless per phase); 120 amps* (brushed) Power Wires: 14-Gauge BEC: 6.0 volt/5.0 amp Motor Limit: 18.5-turn (brushless); 27-turn stock motor (brushed mode) Discrete Steps: 512 Forward; 512 Reverse Battery/Motor Plug: Tamiya (battery); None (motor) Voltage Cut-off: 6.25 volts (when Li-Poly Cutoff Circuitry is enabled) So this ESC does have a LVC IF it was enabled. Here's an exerpt from Wikipedia on charging Nimh. (Simply to show the voltage tolerance of this ESC) http://en.wikipedia.org/wiki/Nickel_...ydride_battery Charging NiMH Charge curve - The charging voltage is in the range of 1.4–1.6 V/cell. A fully charged cell measures 1.35–1.4 V (unloaded), and supplies a nominal average 1.2 V/cell during discharge, down to about 1.0–1.1 V/cell (further discharge may cause permanent damage). In general, a constant-voltage charging method cannot be used for automatic charging. When fast-charging, it is advisable to charge the NiMH cells with a smart battery charger to avoid overcharging, which can damage cells and cause dangerous conditions. So the Novak Goat ESC works with 7 cell Nimh packs. A fully charged 7 cell pack will be at 9.8 volts when you first pull it off the charger. Plenty of tolerance for a 2S Lipo pack. The Pack in question probably encountered a HUGE Amp load (dead short) OR No Low Voltage Cutout was used. If No LVC was used, then it was ran until completely dead.