48v Falco 750Hx ??

[imaleone]

Ive had my 750Hx for 3 years now. unbelieveably the 36v battery is still going strong. I do see voltage sag earlier however.
i am starting a thread to hopefully understand batteries better.
I am upgrading and the available voltages are tempting. You can see how with a 52v offering a person can concevably power the hub. falcos controller is rated for 50v max and 50A (allbeit with adjustment).. setting,
I have an email out but believe the referred setting is the ability for some users to go to off road mode.
Anyway, batteries rated at 48 V really have a full charge of somewhere between 51-55V. that risks controller damage. So i have a 45V 13Ah battery. 50V max charge.

 

[MLB]

Won't the higher voltage increase the heat levels which will have the controller cutting power earlier? I have that problem with the 36v and my 500.

 

[imaleone]

I have not had any trouble with temp sensor. In fact my hub never really gets warm. There may be trouble if you are a west coaster and overdrive your hub at full throttle. Your 500 should be handling that 36v with no problem.

 

[imaleone]

@MLB
I have the 500Hx as well running 36v 11.6 Ah with no problems
how do you know its the temp sensor?

 

[MLB]

if you read back there were problems with most ALL of them.

Mine is never above level 3 and usually at 1 or 2. Always peddling it will be cutting out for thermal at 10 miles or so. Very common..........

 

[Bike_On]

@MLB
I have the 500Hx as well running 36v 11.6 Ah with no problems
how do you know its the temp sensor?

You have to remember that it's NOT a problem with the Temp Sensor in that it is doing what it was designed to do: Protect the motor.

At level 5, a fresh battery can put out 30A >> 1080 W at 36V. The 500HX is rated for 500W, so running it hard SHOULD eventually hit the threashold temperature.

Do I like it? No. I want my 500HX to run at 1000-1200W when needed and not cut back. I suppose that's a reason to upgrade to a 750HX.

 

[MLB]

I'm perfectly happy with the reasonable power limits. I have motorcycles if I don't want to bike.