'tart tourmenter
I bumped into him at the local Saeco when I was getting some bearings. I gave him my card & hope to catch up with him for more info.Originally Posted by Urano
I understand he is running lithium batteries at 72 volts and got some parts as a kit from USA. Charger is mounted in the bike for recharging at any outlet.
Bike is a GSXR 600 he picked up with a blown motor for aprox $1700.
Suck, Squeeze, Bang, Blow aren’t just the 4 cycles of an engine
L-Plate Rider
hey everyone, i have spent alot of time building this bike as it is my first time making an ev, this one was just the test bike to make sure it all worked how i wanted it to, the bike i am building now is the first of my new new prduction bike that i will be selling through out NZ, it will have the very latest in battery and bms technology and running a pretty cool new motor.
thanks for you intrest i will keep you all posted on the new bike.
Mr. Responsible
Awesome!
Any idea of 0-100km/h, top speed and range on a charge?
111000101000100010011110
I'd be very interested if you put up a build thread for it, here would be where it goes
Click on my sig pic if you want to see what I did on a pretty low budget.
"A shark on whiskey is mighty risky, but a shark on beer is a beer engineer" - Tad Ghostal
L-Plate Rider
All going well the new bike will be on display at this years big boys toys. The test bike in the photos on previous page has a top speed of 130km an 0-100 in about 6sec without pushing to hard. Its a blast to ride an would never go back to gas powered. (unless long trip was needed) the new bike will have 100+ kms on single charge.
Slapper?
Any info on who built it?
Be the person your dog thinks you are...
Hardcore Biker
cheers man.
but the prob is not that.
the real issue is: "how long from drained to full rejuice?"
>5 hours? baaaad
5-2 hours? baddy
2 hours-30 mins? well, barely doable
30-10 mins? that's something reasonable
10-5 mins? very nice.
<5 mins? now i'm interested to invest in your idea...
L-Plate Rider
It depends how offen you are on the bike an what you use it for, touring is not an option at this point on an electric. Im guessing you sleep every night so while you are recharging the bike can to. It has an on board charger, i only charge once a week either at home or at work. 40min will get bout 80% charged an 3hrs for the full. I dont see charging time as a problem its always gonna take time, but the thing that will get better is distance on a charge. Will keep everyone updated, cheers
Kiwibiker
Awesome work right there. I'm looking forward to seeing your progress
Mr. Responsible
Could be racings future. These bikes look good for a junior, would be alot safer, could rig up a remote kill switch easily in case of crashes or mechanical failures.
Forum whore
Hell, 3hrs ain't half bad at all!!
To laugh often and much; to win the respect of intelligent people and the affection of children; to earn the appreciation of honest critics and to endure the betrayal of false friends. To appreciate beauty; to find the best in others; to leave the world a bit better whether by a healthy child, a garden patch, or a redeemed social condition; to know that even one life has breathed easier because you have lived. This is to have succeeded
L-Plate Rider
Yer you are right its not long at all when you look at how long mobile phones an tablets take to charge.
Forum whore
And to boot, 40mins for 80% charge isn't bad either. One could be having dinner/lunch or whatever while it recharges.
To laugh often and much; to win the respect of intelligent people and the affection of children; to earn the appreciation of honest critics and to endure the betrayal of false friends. To appreciate beauty; to find the best in others; to leave the world a bit better whether by a healthy child, a garden patch, or a redeemed social condition; to know that even one life has breathed easier because you have lived. This is to have succeeded
Custom User Title
Hi Boob! (we should have a yarn on fb or something, how was asia?)
Assuming he's using lithium ion (what are you using roguenp? li-ion? polymer? lead acid? lol) then you'll only have 80% of your power and range, which might sound like a lot, but the discharge graph of a typical lithium ion/polymer battery is almost constant for a long time then hits a point and decays exponentially, at 80% charge you'll only be 80% of the way up this graph giving you roughly 40 mins (according to the graph I'm looking at) which sounds fine and dandy but because it's an exponential decay your speed will be reduced as such, which means you can only ride for like 8 minutes before you have to turn around and ride back for 32 mins (8 and 32 is a bit of a guess but you get the idea), plus you wouldn’t want to drop below 10% of battery power before you started damaging things, if I were to call roguenp out on something that would probably be it.
I haven't actually done battery discharge yet, but I know how to read a graph, and unless there's some fundamental law of batteries I'm yet to learn I'm going to stand by my above statement.
No disrespect to rouguenp, someone has to do the hard yards, but when you do some maths you start running into some pretty big numbers, like how much power NZ would require to switch it's entire transport fleet to electric (if everyone charged for 3 hours it's ~40GW, which is 10x more than our current total output, with a network which breaks when we have a small snow storm - not going to happen) then you have the lack of lithium (not enough to go around - by a long way) unless another form of energy storage is found, or an asteroid is mined (which I think is more likely than all of the above and totally fucking awesome)
Anyone who wants to feel good about saving the environment needs to look at how, where, and how much it cost to mine lithium, then you've got to consider you're only moving the problem out of the exhaust pipe and into a nuclear reactor (which NZ would need, but never have) or as stated, 20x more power stations, which no one will put up cause it'll ruin their fishing spot/Native New Zealand slug reserve/swimming hole/view of a green hill identical to the one next to it)
Here's a graph of a typical Lithium Ion Battery discharge (admittedly this battery is much much smaller than one in a motorcycle, and admittedly I don't know how scale fits with time (I know intuitively it should make it longer, but this isn't an ordinary graph so I can't say) but everything I said here is relative to the red line on the picture:
Wow that turned into a bit of a rant, it's really not I'm trying to be informative, but really I'm just procrastinating. Anyway I have to get back to study, finding the principle thinger of an ellipse using eigenvalues/vectors, FUCK YEEAAAAAAH
L-Plate Rider
Well done, that was nice and long. The bike has a bms that does not allow it to run below 80% at which point it enters limp home mode. when I said 40 min for 80% I was referring to the usable charge. there is a site comparing the gas vs electric industry I'll try an find it an post link. I'm not really interested in a debate. I have made the first bike its great people love it that ride it an the next bike will only get better. we are talking motorcycles not cars big difference an I'm not talking fleets.
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