ERider 8000W scooter - Australia (similar to xm5000li)

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Thanks for your offer,but our CHL have very good charactor,it don't need automatically balancing BMS,only several times manual balancing would be enough every year.

We have tried more than 10 different BMS during passed 2 years........ the result is very disappointed !

In China,most of active BMS is not stable and they will kill good battery sometimes !

Thanks for your offer,but our CHL have very good charactor,it don't need automatically balancing BMS,only several times manual balancing would be enough every year.

In China,most of active BMS is not stable and they will kill good battery sometimes !

Recieved the 2 new black Thunders today and the Puma motor.
It's a Quanshun marked 8000W 100V and it feels well made with thicker leads.
I have reprogrammed my Sevcon with a file from Mountain.
What I fear a little bit is that it might be slower than the original motor since I only have a 76,8V battery pack and the motor is rated for 100V..
I´ll find that out when I have put on the new tire and put the scooter together.

How, where and from whom did you get that motor?

How, where and from whom did you get that motor?

Erider, Mountain Chen.

Cell 23 is dangerously low!!! I would not recommend ever going much beyond 45Ah discharge with your battery, BMS or not, as a LiFePO4 cell at almost 2.5V at rest will most likely have gone well below 2V already while riding, and as it appears your BMS did not detect this and did NOT shut off the controller supply current. It does not seem to to have a working low voltage cut-off function!!!

Cell 23 is dangerously low!!! I would not recommend ever going much beyond 45Ah discharge with your battery, BMS or not, as a LiFePO4 cell at almost 2.5V at rest will most likely have gone well below 2V already while riding, and as it appears your BMS did not detect this and did NOT shut off the controller supply current. It does not seem to to have a working low voltage cut-off function!!!

I don't trust this BMS except as a "last resort" because it uses a 2V cut-off instead of 2.5 like everyone else does....

Don't worry about 2.0V protection,LFP could bear it,unlike LCP or LMP.

And this BMS is very sensive,as soon as it hit 2.0V and cut off the current.the voltage will float back to 2.5V or 2.6V in several seconds,don't have any damage to battery.

By the way,62V (2.6V on each cell) controller cut off will act as another protection because all cells are very equalization

Mountain, the bad thing is that even during the final moments of Phil's last ride the BMS did NOT shut off, despite cell 23 having pretty surely dropped below the 2V threshold under load. That is the thing that worries me...

Phil, were there any high current moments during the last 2km of your last ride, currents in the region of 100A? Or was it just in "loitering mode", continuously below 50A?

Mountain, the bad thing is that even during the final moments of Phil's last ride the BMS did NOT shut off, despite cell 23 having pretty surely dropped below the 2V threshold under load. That is the thing that worries me...

Phil, were there any high current moments during the last 2km of your last ride, currents in the region of 100A? Or was it just in "loitering mode", continuously below 50A?

Phil's last riding already 60.3V on controller,which means controller cut off the power,and all cells are equalization !

No, power was NOT cut, if I understand this sentence correctly:
"But I managed to get home and the BMS didn't cut the power to the bike."
Not by the BMS (which probably should have cut the power), nor by anything else.

It' not sure that any cell went below 2V, you really need a cell based logging device to test that.

Thanks Phil for clarifying. So it was you who was careful enough to keep cell 23 above 2V and your BMS from shutting off :-)

Are you turning into an Erider dealership in Canberra? Or just an extended arm of Eric?

"Granny driving was a lot faster than me on that day. I had my left blinker on hugging the left side of the road rolling at 15kmh desperate to get home. Because I know how heavy these scooters are to push."

Been there, done that! On the longest ride I ever took on the ZEV, I swear I was running on virtual particles the last three miles.

Thank you very much !

Oh, one question to pcarlson: Did you order (and are now riding) the "fleet" version of Lighting Bolt TD4? That one fits your descriptions best.

And Johnny J, do you by any chance know which Sevcon controller is fitted to your 8kW Thunder? I am just wondering a bit what Mountain Chen (or possibly Erider Australia themselves) are doing with these scooters. Your 8kW Thunder should be according to the Plugin-DriveTech spec which is becoming increasingly popular around the globe (for good reasons :-), and the way I understood Mr. Chen the smaller G8018 controller is supposed to be included in the 8kW Thunder. But pcarlson reports the bigger G8035 to be driving his 8kW Lightning, and I suspect that may be Erider Australia's doing, as they say it "has been specially prepared and customised for the mass market."

Yes the controller is the Sevcon Gen4 8035.
The scooter is the Fleet version TD4 so it has the 8000w rear hub, not the 4.5kw hub and reinforced front and rear forks to stop the splaying out.

I'm looking forward to the long weekend for more riding.

I have seen you have installed HID lights. It is strange with so much available in LED lights you have opted for this technology

@Omange: Did you see Phil's fotos and I think even a youtube video on the illumination power of those HID lights? There has yet to be created a LED-powered headlight that would fit that scooter's headlight setup and be as luminous as those HID lights are!

Phil, any updates on your summer riding with increadible heat, let alone fires? I would think your battery will get REAL hot when ambient temp. reaches over 35°C?

Was thinking the same thing the other day, hope you are doing ok Philip?

Good to hear from you, Phil! 49°C?! That is unbearable even for humans, never mind an electric hub motor!
And congratulations on your fully fledged motorcycle licence!!!

I will be participating in a motorcyle safety training in April this year, with my elctric Thunder. I wonder if it will manage to get through everything and still have enough charge left to get me back home afterwards.

Oh, and I wanted to ask you what DC-DC-converter you got for your HID lights: was it the Kelly KDCC7213.5-400-5W 30A 72V/13.5V, 400W converter? I had that one firing my 12V DC-230V AC 300W inverter to heat my battery (115...120W) at work from battery power, and it worked for just two weeks. Now it blows the 15A input fuse every time I apply battery voltage?!

I bought this one: http://www.aliexpress.com/snapshot/202343302.html
But it seems it's no longer available from this supplier at least, paid only 55,49 including freight.
Seems to be working fine with my HID.