Yeah, MeanWell makes one too.
Don't go cheap with a DC-DC converter, they're inefficient, get hot and burn up.
I never run anything from China at more than half power if I can help it.
90% efficiency at 1000 Watts=100 Watts of heat and waste.
And it's vented with a fan I think?
Not really suited to bolted to an e-bike getting bounced around and wet.
Maybe there is something available for the automotive EV industry?
I remember looking into it before and I couldn't find anything with a high enough voltage output, but I'm sure there must be something out there.
Something fully potted and able to have the snot kicked out of it.
Alright I had some time to think a little more about the battery configuration and Tronix 250R VESC controller setup.
The controller is rated 120A and 24V to 100.8V.
This is not meaning that the Tronix 250R can pull 120A at 100.8V it means it can pull 120A at 24V. Right?
Cause as the voltage goes up the required power goes down so the required amps go down.
So mathematically that's the controller capabilities. (Tronix 250R VESC.) And the battery capabilities (LTO 61660)
Currently I am running at 54.6V with stock 20A controller = 1092 Watts Maximum
Like I said this gets me to 27 MPH on flat or slight incline but it never goes over 27 because at that point the motor voltage is higher than the battery voltage so it regens at that speed instead of going any faster. But with any VESC the controller switches to sensorless mode to overcome this and keeps spinning the motor faster until you hit some limit. That's the ERPM they talk about.
So here's the situation. Even the 24V battery at 25% of its max discharge can support the Maximum Controller output of 2880 watts. Meaning that the controller and battery pair can drive the motor up to the 2880 watts. ERPM is going to kick in. We will calculate that ERPM in a bit.
The conclusion:
I mean I've got to say....according to the numbers calculated for this pair I should be able to accomplish up to 2.637 times my current power even at 24V. Thats over 30 mph with a 24V battery. Dependent on the limiting factor of the ERPM. Normally the Discharge Rate of the battery is the limiting factor but not in this case. In fact we could power up to 4 motors and 4 Tronix 250R at 24V for a total of 480 Amps at 24V. Thats 11520 Watts of power that one 12S 24V LTO 61660 pack can output. INCREDIBLE
Worst case scenario due to motor KV (RPM Per Volt) it could be possible to lose some top speed. Obviously the bigger battery has a higher top speed. But like i was saying I need to figure out exactly what the ERPM will influence in this situation.
At any rate it wouldn't be recommended to run less than 36V Pack. The Tronix 250R needs 24V so when the 24V pack drains we would end up under that.
Final Conclusion
18S 36V LTO 61660 Pack is good for any of the Ebike Motors that Exist It can be Paired with a VESC that can use up to 25920 Watts.
I'm gonna go for it !! And its only $1050 for the 36V battery. The bus bars and the box and whatnot i'll make.
On a side note: My UPP 48V 24AH Battery can output 60A (if the nickel holds) and you change the BMS. So soon as I get my Tronix heatsink / rear rack battery holder made I can test the performance and let you know what I get out of 2880 Watts. I think the motor will handle 2500 Watts as long as its vented and the battery is def good for at least 40A.
Also for those who would only want to run 36V you could buy the G062-1000 6T FOR FATBIKES. If you put that motor on a 26 inch wheel instead of the 20 inch it comes on it will also offset the lower voltage / top speed.
