These are the rather “official” numbers:
TEU-101BK: 25 Turns limit (60 A). 100% Forward / 100% Reverse . Driving frequency 1 kHz. Battery input 6.6V – 7.2V.
TEU-104BK: 25 Turns limit (60 A). 100% Forward / 50% Reverse . Driving frequency 1 kHz. Battery input 6.6V – 7.2V. LiFe cutoff .
TEU-105BK: 25 Turns limit (60 A). 100% Forward / 50% Reverse . Driving frequency 1 kHz. Battery input 6.6V – 7.2V. LiFe cutoff . BEC output 6V/1A.
TEU-302BK: 17 Turns limit (120 A). 100% Forward / 50% Reverse . Driving frequency 500 Hz / 1 kHz / 2 kHz. Battery input 6.6V – 8.4V. BEC output 6V/2A.
TEU-103BK Dual motor: Dual 25 Turns limit (150 A). 100% Forward / 50% Reverse . Driving frequency 1 kHz. Battery input 6.6V – 7.2V. BEC output 6V/1A.
TEU-106BK Dual motor: Dual 25 Turns limit (150 A). 100% Forward / 50% Reverse . Driving frequency 1 kHz. Battery input 6.6V – 7.2V. BEC output 6V/2A.
TEU-102BK Dual motor: For Tamiya 370-sized and 380-sized motors (60 A). 100% Forward / 100% Reverse . Driving frequency 1 kHz. Battery input 7.2V. BEC output 6V.
In reality, the turns limit may not really be that rigid.
I tried using a 21 turn 540 brushed motor with a 104 on a TT01, pinion gear has 25 teeth. No problem so far.
I then tried using a 15 turn with a 104 on a TT02, pinion gear has 22 teeth. Also no problem.
Outdoor temperature is approximately 20 degrees C. Average run time was 5-minutes.
I did fried a 101 with a standard 540 and a pinion of 29 teeth.
In other words, there are many parameters in the equation!
FYI, see this:
