Barely_Legal
10 µW
- Joined
- Apr 27, 2018
- Messages
- 5
I was recently lucky enough to become the proud owner of a 2010 Vmoto Emax 120s.
Whilst the lead acid batteries have been recently replaced and it still gets a good 60km of range from them I would love to pack this thing full of lithium. 120kg of lead definitely makes it more sluggish than it has to be. 70km/hr on a flat but any kind of hill and it sheds speed, which is fair enough when its hauling so much lead around.
Does anyone know the max voltage the stock controller can manage? I read somewhere that it can handle up to 63v (capacitor max voltage). given that the 48v lead pack gets it to 70km/hr I would expect around 85km/hr from going up to 63v. Which would be rather handy as being able to use 80km/hr roads opens up alot more road options.
I am torn between keeping the current 48v pack design (just in lithium), going to a ~63v pack design or chucking the original controller and going all out at 72v or higher and getting 100km/hr out of this thing.
Also what are the current good options for ~8KW continuous 72v capable controllers? Ive only got experience with the sub 2KW e-bike controllers.
And where can an australian get access to quality LiFePO4 cells? I'm assuming a trusted alibaba seller is probably the best option
The motor is rated for continuous 8KW so I feel comfortable going to 72v or slightly higher without worrying about burning the motor out.
Does anyone have any experience working on this particular scoot? I've seen a few old forum posts but not enough to shed much light on the options for making it faster.
Any help or advice would be appreciated
Whilst the lead acid batteries have been recently replaced and it still gets a good 60km of range from them I would love to pack this thing full of lithium. 120kg of lead definitely makes it more sluggish than it has to be. 70km/hr on a flat but any kind of hill and it sheds speed, which is fair enough when its hauling so much lead around.
Does anyone know the max voltage the stock controller can manage? I read somewhere that it can handle up to 63v (capacitor max voltage). given that the 48v lead pack gets it to 70km/hr I would expect around 85km/hr from going up to 63v. Which would be rather handy as being able to use 80km/hr roads opens up alot more road options.
I am torn between keeping the current 48v pack design (just in lithium), going to a ~63v pack design or chucking the original controller and going all out at 72v or higher and getting 100km/hr out of this thing.
Also what are the current good options for ~8KW continuous 72v capable controllers? Ive only got experience with the sub 2KW e-bike controllers.
And where can an australian get access to quality LiFePO4 cells? I'm assuming a trusted alibaba seller is probably the best option
The motor is rated for continuous 8KW so I feel comfortable going to 72v or slightly higher without worrying about burning the motor out.
Does anyone have any experience working on this particular scoot? I've seen a few old forum posts but not enough to shed much light on the options for making it faster.
Any help or advice would be appreciated
