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E rider scooter batteries?

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jordanmills View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jordanmills Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2016 at 1:04pm
10 modules wouldnt be cheap!!, Did you get a BMS too??. Lipo's are definitely more bang for buck. I have tested my scooter using 12 5s Turnigy 5000's. 84v hot off the charger. Set the current at 80amps and things look promising. Gets to 60-70km/h easily enough. Waiting on my charger before i go with the 75v 36ah setup. Just watch the voltage sag using 3 in series.
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pahealey View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote pahealey Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2016 at 1:07pm
10 mudules are $1900. Planning to get miniBMS for about $500.
2010 Gen 3 Prius
2 x E-bike
2012 Erider TD4
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jordanmills Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2016 at 1:13pm
Originally posted by pahealey pahealey wrote:

10 mudules are $1900. Planning to get miniBMS for about $500.


Ahh so up around triple the price. I'll continue to see your progress. Might look at doing something like this in the future. For now lipo's will do. Might retire them to the bike later down the track
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pahealey View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pahealey Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2016 at 1:14pm
I will see how the lipos go. To get 60 ah need 15 cost $1300+500 at least for chargers. Did you have 4 x5s to give 84v. I did wonder if 3 x 6s would be too low voltage.
2010 Gen 3 Prius
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2012 Erider TD4
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jordanmills View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jordanmills Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2016 at 1:20pm
Depends on your low voltage cutoff on your controller. One of mine is 60v the other 70v. Yes 4 5s in series to give 84v hot, 3 in parallel to give 15ah
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pahealey View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pahealey Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2016 at 2:07pm
I have a Sabvoton 150A controller which like your e-bike controller is much simpler then the original Sevcon. Did your sparkie provide a wiring diagram which I might peek at?. I'm tempted to cut the covering on the main wire harness and see where they all go and remove all the superfluous wires. I will wait until I get power to controller and see which wires are essential.
2010 Gen 3 Prius
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2012 Erider TD4
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jordanmills Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2016 at 2:17pm
Just down the workshop manual for the xm5000. You only need 2 positive and 2 negative wires. Others for onboard chargeing etc not needed
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Post Options Post Options   Thanks (0) Thanks(0)   Quote antiscab Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2016 at 3:41pm
Originally posted by pahealey pahealey wrote:

10 mudules are $1900. Planning to get miniBMS for about $500.


MiniBMS is a surprising choice - is there a version you can buy that has the right shunt and HVD settings for the leaf modules? (4.1v and 4.2v respectively)

If not, might be worth looking into a programmable BMS such as the Zeva or Tritium offerings

Matt
2008 Mazda 2 - EV Shop convert
2011 Blade Electron mk6
2007 vectrix - 117'000km
1993 Electrolux - needs batt and charger
1998 Prius - needs batt
1999 Prius - needs batt
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pahealey Quote  Post ReplyReply Direct Link To This Post Posted: 14 August 2016 at 4:31pm
They have a minibms for leaf/volt cells at 4.2 hvc
2010 Gen 3 Prius
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2012 Erider TD4
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pahealey Quote  Post ReplyReply Direct Link To This Post Posted: 24 August 2016 at 3:49pm
I have got the bike going now with 3 x lipos. I have sorted out the electrics with ignition, DC converter and 12V system working. I have paid for the leaf modules today so should be here in 6-12 weeks. Took me a while to get controller working as the motor doesn't have temp sensor and controller needs 1K resistor betwwen temp wire and ground to stop motor over temp error. I did strip the electrical covering and removed lots of unused wiring. I have good understanding of the electrics now. I have looked at The ZEVA BMS which looks good and is about the same price as MiniBMS and is programmable. Tritium don't sell BMS now. Aim for Rego in a few weeks.
2010 Gen 3 Prius
2 x E-bike
2012 Erider TD4
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pahealey Quote  Post ReplyReply Direct Link To This Post Posted: 24 August 2016 at 3:52pm
I can't get the reverse button to work. Won't be able to test regen until have rego.
2010 Gen 3 Prius
2 x E-bike
2012 Erider TD4
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pahealey Quote  Post ReplyReply Direct Link To This Post Posted: 11 September 2016 at 5:49pm
I have the bike registered and working great. The 12ah lipo only give me a range of 12-15 km. I actually over discharged the batteries once (Had to push bike home!) and buggered a cell which I have removed so running on 17 cells now (2x6+5). That was a useful learning exercise. Bike has top speed of 90-95 with 75V which should increase with 84V Leaf cells. Reverse nad regen are working. The bike is quite fun to ride and goes well.
2010 Gen 3 Prius
2 x E-bike
2012 Erider TD4
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Post Options Post Options   Thanks (0) Thanks(0)   Quote pahealey Quote  Post ReplyReply Direct Link To This Post Posted: 18 September 2016 at 5:32pm
I am currently running bike on Lipo cells with maximum voltage of 67 volts at full charge. the top speed of the bike with this voltage is about 78 kmh. With 75 volts it was about 90 kmh. I also ran it for a while with 50V and it had top speed of 60kmh. Interestingly, low speed acceleration doesn't feel to change much and I beleive is more closely related to amps.
2010 Gen 3 Prius
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2012 Erider TD4
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