Motorino XPn 2011 E-Scooter

General Discussion about large electric scooters and motorcycles and other things with no pedals.

Re: Motorino XPn 2011

Postby Arlo1 » Thu Aug 11, 2011 9:20 am

bcwrench wrote:
To see some issues with modded boards, all you gotta do is do a search of Arlo1's posts to see what happens when the motor over taxes the controller on the switched side. We both live in the same town but at opposite ends of it and he's about half my age. Picture the tortise and the hair. :mrgreen:

Hey WTF? lol. My modded boards were not the cause of the failure it was the 9mOhm resistance with the 8.5uH worth of inductance in the motor IN fact the only time I have ever blew a controller was on collossus. My bmx has been 100% reliable but the x5 has 180mOhms resistance and 260uH inductance so its not hard to spike power into! I have a chart in my inductance threat showing it only takes around .000025 seconds to be to many amps for these little 24 fet controllers to handle!

Any ways as for the tortoise and the hair. My bike will only go ~20 km on a charge with my current abused batteries but it will beet most cars on the road from light to light! :mrgreen:
Thanks Justin at http://www.ebikes.ca/
Thanks to Methy at http://www.methtek.com/
And Dave who has Nomex, fets and current sensors etc. STUFF
My YSR build. viewtopic.php?f=10&t=18183
Finished http://www.youtube.com/watch?v=BRo8r5g4NBg
RC lipo and most other types of Lithium batteries you MUST know your individual cell voltages charging and discharging.
Don't keep them under your bed or were you cant afford smoke or fire!
Never above 4.2v never below 2.7v EVER!!!
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Re: Motorino XPn 2011

Postby mistercrash » Fri Aug 12, 2011 9:29 am

bcwrench wrote:One thing to remember, and Ypedal mentions this in his sticky on batteries. Put in more than you need when it comes to capacity. From my reading and such I have come up with the theory of having more battery capacity than you have motor as it relates to KW. My 16 cell 40Ah pack is rated at 2.05Kw/hr (20 cells - 2.56 Kw/hr). The motor is 1.5 Kw. In your example above quick math gives 1.8 Kw battery and 2.0 Kw motor. This strains the batteries a little more and will reduce their life overall. It also affects your range.


Let's see if I'm starting to understand this. How about this combo here.
This controller
http://kellycontroller.com/kbl7210124-72v100abldc-controllerwith-regen-p-56.html
With this motor
http://kellycontroller.com/hub-motor-60v-2kwdisc-brake-p-153.html
Two of these batteries in parallel
http://www.pingbattery.com/servlet/the-16/36V-30AH-V2.5-LiFePO4/Detail
Two of these batteries in parallel
http://www.pingbattery.com/servlet/the-15/24V-30AH-V2.5-LiFePO4/Detail

Then plug the two pairs in series to get 60V 60Ah. Would that be sufficient? Man! That's a $2500 batteries not including shipping and customs. :shock: Like they say, speed costs money, how fast can you afford to go? Well in this case it's not much about speed but more about torque.

Or a less expensive option staying at 48V

Controller
http://kellycontroller.com/kbl4810124v-48v100abldc-controllerwith-regen-p-54.html
Motor
http://kellycontroller.com/hub-motor-48v15kwdisc-brake-p-162.html
Two of these batteries in parallel
http://www.pingbattery.com/servlet/the-17/48V-30AH-V2.5-LiFePO4/Detail
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Re: Motorino XPn 2011

Postby Boxmaster » Fri Sep 16, 2011 7:18 pm

"I took out the limiter plug so it goes up to 45 km/h on flat ground."

I just bought the XPN. Could you please tell me how you did this. I would really appreciate it.

Thanks.
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Re: Motorino XPn 2011

Postby mistercrash » Fri Sep 16, 2011 9:54 pm

If your XPn is put together like mine then you should find it underneath the right rear side panel. There's only three screws holding the panel. This is the plug, it's just a wire that loops around.

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Re: Motorino XPn 2011

Postby Bluefang » Sat Sep 17, 2011 8:29 am

Umm, have u burned the motor out or something, why are you looking at getting a new one? The one you have already will probably not be much different from the kelly one your planing on buying. You dont need 60V 60AH(3.6kw/h) worth of batteries unless you want to ability to travel 80-90 miles at 30mph. I highly recomend you just stick to the basics and get a lyen 12fet controller and 2x Ping 36V20AH batteries. That will be a range of about 40 miles. Every Kw/h you have will get you 1hr travel time at ~30mph.

I am with arlo, the modded boards you can buy through this forum are second to none, for package size, reliability and cost they beat Kelly controllers hands down. The only reason they blow is cause most of the people who post about using them are the hardcore modders who test the limits of everything :)
viewtopic.php?f=10&t=49912 For sale, 32kw Electric Motorbike, 70km range, 120km/h top speed
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Re: Motorino XPn 2011

Postby Arlo1 » Sat Sep 17, 2011 9:31 am

I will warn of this. Kelly has phase current monitering. The china bords don't but.... Kelly uses voltage drop across the low side fet so not the best. And Kelly fet vs cap lay outs suck as well. I have lern that some motors need a crazy good controller and most motors with 100uH or more will be able to be run with any controller.
I was able to get almost 8000watts through a 12 fet the other night I wont run it like that all the time I am just impressed 2 fets in parallel can be so good on a cheep controller!
Thanks Justin at http://www.ebikes.ca/
Thanks to Methy at http://www.methtek.com/
And Dave who has Nomex, fets and current sensors etc. STUFF
My YSR build. viewtopic.php?f=10&t=18183
Finished http://www.youtube.com/watch?v=BRo8r5g4NBg
RC lipo and most other types of Lithium batteries you MUST know your individual cell voltages charging and discharging.
Don't keep them under your bed or were you cant afford smoke or fire!
Never above 4.2v never below 2.7v EVER!!!
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Re: Motorino XPn 2011

Postby mistercrash » Sat Sep 17, 2011 9:38 am

Bluefang,
The motor that's on the scooter works fine and so does everything else on it. I'm very happy with the reliability of this scooter, getting close to 1150 miles on it with no problems. But I want a bit more speed and a lot more torque. Right now, I do 26 mph top speed on flat ground. I would like 34 or 35 mph top speed. Going up a steep hill, the speed drops down to 15 mph. I want more torque so that the speed doesn't drop as much going uphill. If I'm moving along at 30/31 mph and I come to a steep hill, I would like to have enough torque to keep that speed all the way up that hill. That's the reasons why I'm looking at upgrading everything :) Now my choices I posted reflect my lack of knowledge on what is really needed to achieve what I want, and that's why I joined ES. To ask for the opinions of people who know what they're talking about.

So a Lyen 12 fet controller would be superior? That's excellent.. noted. I'm confused on the choice of batteries though, two Ping 36V? I'm running 48 V right now with the SLAs so what would be the advantage of going to 36V? Or do you mean two 36V in series for a total of 72V? In that case, can the 500 Watts/48V motor I have now run on 72V?

Arlo1,
This shows very well how ignorant I am on anything electric and electronic. Most of what you say doesn't make sense to me :lol: But I really appreciate you guys posting in here because I need all the help I can get from Endless Sphere's ''Super brains'' :D

Thanks
Ray
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Re: Motorino XPn 2011

Postby Arlo1 » Sat Sep 17, 2011 9:46 am

You can run a 12 fet at ~40-50amps and 80-100 volts all day! But I built my own 12 fet controllers. Lyen seems ok from what I herd but he can't build what I need! He is also a awefull person on the forums when it comes to asking questions it all has to be in private email and never lets anyone have the software with out buying a controller ect... :roll: As a rule If you want more speed you want more volts eg. If you have a battery pack voltage of 50v and you want say 25% more speed then up the pack voltage to 62.5v You need more amps to climb hills faster. You will find both of these are going to make your batteries run dead faster so you will want to buy more batteries?
Last edited by Arlo1 on Sat Sep 17, 2011 6:44 pm, edited 1 time in total.
Thanks Justin at http://www.ebikes.ca/
Thanks to Methy at http://www.methtek.com/
And Dave who has Nomex, fets and current sensors etc. STUFF
My YSR build. viewtopic.php?f=10&t=18183
Finished http://www.youtube.com/watch?v=BRo8r5g4NBg
RC lipo and most other types of Lithium batteries you MUST know your individual cell voltages charging and discharging.
Don't keep them under your bed or were you cant afford smoke or fire!
Never above 4.2v never below 2.7v EVER!!!
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Re: Motorino XPn 2011

Postby mistercrash » Sat Sep 17, 2011 10:17 am

Grrr.... Arlo1 you're confusing me now :) So the Lyens are just ok now and from what you say, if I were to get one then I'd be on my own if I ever have problems with it. That's a bit scary to me. What is a better alternative? One of your controllers maybe? 25% more speed sounds good to me so I would need to go to 72V I suspect. More amps to get more torque to go up hills so instead of staying at 20 amps, I should look into 40 amps right? Now I still have this question, can the motor I have now which is rated 500watts/48V run on 72V? Or do I need to upgrade the motor?

Thanks
Ray
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Re: Motorino XPn 2011

Postby Lyen » Sat Sep 17, 2011 12:19 pm

I have to clarify that I do provide support via email and private message for easy follow up. The reason that I cannot distribute the software to the public is because I have an agreement with the company.
Last edited by Lyen on Sat Sep 17, 2011 12:44 pm, edited 2 times in total.
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Re: Motorino XPn 2011

Postby Wolfy » Sat Sep 17, 2011 12:23 pm

Hi Ray; :D
I got the same issue with my e-scooter regarding hill climbing. :roll: My machine is a stock Veloteq Commander.I'm just down the hiway in Hamilton and my nemesis is the Niagara escarpment at over 300ft high.Think I'm gonna beef up the wiring and connections also, that was something I was thiking about for a while but never got around to it.The reply from BCwrench confirms it for me.Had no idea that there could be THAT much difference.Brilliant work BC! Think I will go with LED's eventually also.This will obviuosly be safer,but also less load on the batteries.Waiting for good sale at Princess Auto,Canadian Tire,or where ever.
I'm getting my controller replaced,just ordering it now.OEM controller limited to 12A.Going with Infineon Lyen version.Reasons are;
1) Reasonable price
2)Three speed mode (granny speed,road legal speed for Ontario,Balls out mode for offroad and hill climbing)
3)User programmable interface to change specs(get the most out of OEM motor since I believe more than just limiter used to detune for legal compliance)
4)Uses 4110 mosfets for better amperage and more robust and should run cooler.
5)Lead for electronic speedometer which my OEM scooter employs
6)Powerful and robust enough for future motor upgrading.
7)Capable of Reverse and Regen Braking,motor design permiting
8)Really good reviews from other ES members and also other forums.
9)Kelly controllers are Cadillac but a whole lot more coin (not worth the expense at this point with the Velotech)

I'm not going to replace my 48v 20AH SLA's until they're exhausted....I mean what's the point,no one would want them.They would just lay around.Another way to increase top speed and hill climbing ability is to add another 12v of battery power to make it 60v.That's a 20% increase tthat SHOULD be handled by the lights and DC to DC circuitry.While on the subject of batteries,I'm suprised that you have 2 batteries in parallel with one at 20AH and the other at 16AH.I thought they should be matched for proper charging and recharging.But I could be wrong.I had figured on possibly going dual drive or just replacing the OEM drive, but I'll hold off until I evaluate the performance with the new conroller and rewiring.Who knows how far I can push the OEM geared BDLC before cooking it.

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Re: Motorino XPn 2011

Postby Wolfy » Sat Sep 17, 2011 12:59 pm

Ray;
Don't be afraid of buying from Lyen, it'll be your best bang for your buck and he does e-mail promptly. As for the software........if you are buying the controller you get the software.Just so you know I've already downloaded it from the web along with intructions with pictures and all so it's not even an issue.So I'm sure I'll know how to use it before I even get the controller delivered.Do yourself a favour and read all you can in the Technical Reference area of this forum.Also,look up some of the older strings from Lyen and also Method.Don't go nuts right away and increase to 72v or higher.You may be quite happy with 60v and not have to change much else.Remember batteries are the most expensive part.I'm not a fan of OEM controllers so go for new controller,heavier wiring across,and from and to batteries then to controller.Phase wires are the fatter Yellow,Blue,Green ones from the Controller to the Motor,if they get heated up replace them too.You have to open motor cap to solder the fatter wires in.The new Lyen Controller will have the fatter wires to the connection already.
Take Arlo's word with a grain of salt. :roll:

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Re: Motorino XPn 2011

Postby Arlo1 » Sat Sep 17, 2011 2:41 pm

mistercrash wrote:Grrr.... Arlo1 you're confusing me now :) So the Lyens are just ok now and from what you say, if I were to get one then I'd be on my own if I ever have problems with it. That's a bit scary to me. What is a better alternative? One of your controllers maybe? 25% more speed sounds good to me so I would need to go to 72V I suspect. More amps to get more torque to go up hills so instead of staying at 20 amps, I should look into 40 amps right? Now I still have this question, can the motor I have now which is rated 500watts/48V run on 72V? Or do I need to upgrade the motor?

Thanks
Ray

I'm just using random numbers as an example. Volts determine top speed amps determine the power to accelerate or climb hills.

As for Lyen I need specific needs for my builds that Lyen can't offer.
Lyen seems to offer great service and the best bang for buck pricing.
I have asked various info and he hides it through email I still have not received an email from him my self for the questions I asked because I am not a paying customer of his as well a few of us asked the same question many times in a roe and only the paying customers got answers in email he never posted the info publicly. I have found better software then he has to offer anyway.
This forum is 100% about helping each other and Lyen does not care about that he will take care of his paying customers only!
Having said that.... I recommend anybody looking for a good bang for buck controller to email Lyen he is the best you will find and from what I have seen his product is very good quality.
I am not in the controller building business because I spend to much time building my controllers that I would have to charge to much!
Last edited by Arlo1 on Sat Sep 17, 2011 6:41 pm, edited 1 time in total.
Thanks Justin at http://www.ebikes.ca/
Thanks to Methy at http://www.methtek.com/
And Dave who has Nomex, fets and current sensors etc. STUFF
My YSR build. viewtopic.php?f=10&t=18183
Finished http://www.youtube.com/watch?v=BRo8r5g4NBg
RC lipo and most other types of Lithium batteries you MUST know your individual cell voltages charging and discharging.
Don't keep them under your bed or were you cant afford smoke or fire!
Never above 4.2v never below 2.7v EVER!!!
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Re: Motorino XPn 2011

Postby Boxmaster » Sat Sep 17, 2011 4:47 pm

mistercrash wrote:If your XPn is put together like mine then you should find it underneath the right rear side panel. There's only three screws holding the panel. This is the plug, it's just a wire that loops around.

Image


Thank you so much. It's so annoying having the motor cut out as when you get up to speed. I'm pretty lucky as I live in the Canadian prairies so there are absolutely no hills the xpn can't conquer around me.
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Re: Motorino XPn 2011

Postby mistercrash » Sat Sep 17, 2011 6:59 pm

It looks like I'll be going with a Lyen when I'm ready to start working on this thing this winter. Right now I still use it everyday to go to work and run errands. It's starting to get cold but it don't matter, I saved so much money this summer selling my car to run with a scooter that I want to run it until the snow falls and stays. I tried to open the motor cap one weekend this summer but I couldn't. Seems the cap was stuck in silicon maybe to make it water tight? I'll have to do it this winter and find a way to remove that cap without damaging it to change the phase wires. I have a few meters of 10 gauge multi strand wire with silicon insulation used for RC lipo batteries, I was thinking of using that for the phase wires. The rest of the wiring for the batteries will be a piece of cake. I'll just get some 8 gauge welding wire or just buy a set of booster cables like it was recommended in here by bcwrench I believe. I have a set of booster cables I could use right now but they're made with very big 6 gauge welding wire. Kinda overkill me thinks.

Thanks for all your help and comments people, much appreciated.

Ray
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Re: Motorino XPn 2011

Postby mistercrash » Sun Sep 18, 2011 12:50 pm

I am curious to know what the big difference is between these two batery/charger/BMS combos. Other than price and chemistry and the kind of cell used, I'm wondering what the difference would be in quality between the two. One is Ping and the other is Electric Motorsport.

Ping (add $75 for high rate BMS and 5 amp charger)
http://www.pingbattery.com/servlet/the-2/lifepo4-lithium-ion-phosphate/Detail

Electric Motorsport
http://www.electricmotorsport.com/store/ems_ev_parts_batteries_lpf_gbs_kit48.php

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Re: Motorino XPn 2011

Postby Bluefang » Mon Sep 19, 2011 4:20 am

Both are about the same i would say, just one has fancier hard plastic packaging. The fact that the Electric motor sport site does not list the C/discharge rate of the battery means its probably the same as the ping, ie really bad :mrgreen:

For a safe easy to use plug and play option they are both pretty good, seeing as your putting the battery in a already built battery compartment the ping is probably a better bet. I would still say your much better off using Lipo from Hobby king, its not hard to buy 8 batterys and build them into 2 packs to parallel to charge and series to run the scooter, will work better, cost less, much more powerful and be lighter.
viewtopic.php?f=10&t=49912 For sale, 32kw Electric Motorbike, 70km range, 120km/h top speed
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Re: Motorino XPn 2011

Postby mistercrash » Mon Sep 19, 2011 7:50 am

I used many HobbyKing lipos in the last three years in my RC trucks and RC helicopter. My experience with them is that they don't last as long as higher quality lipos. I've had a few loose much of their performance after just over 100 cycles. Even higher quality lipos do around 300/350 cycles before they start to loose their performance. I don't want to replace lipos every 6 months, I don't see the savings there. I also had a lipo fire once so I'm not keen on putting a bunch of Lithium Polymer batteries in an enclosed space. I don't want to smell smoke one day and pull to the side of the road just to watch my scooter burn and there's nothing I could do about it. LiFePO4 from HobbyKing are crap, I had a total of eight of them and they all puffed just sitting there, two of them lost a cell that just went dead. HK batteries are also over rated on their discharge, a rated 35C constant couldn't hold more than 3.3 volts per cell at a 20C discharge. Sorry Bluefang, Lithium Polymer is not a good option in my book, especially those from Hobby King. Now if you had experience with both a Ping battery and a battery you made with HobbyKing lipos and you tell me that HK lipos are better than Ping, then that's not encouraging.
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Re: Motorino XPn 2011

Postby Arlo1 » Mon Sep 19, 2011 10:03 am

I have over 350 cycles on my Hobby king turnigy 5000mah 6s 20c Lipo and its still over 80% life. I have over charged 3 cells to over 4.35 and discharged 3 cells to bellow 1 volt 2 times. This is before I realized its best to leave the cell monitors unplugged when not in use. The thing with HK lipo for an e bike is you are going to be under using it quite a bit so its not going to loose its life as fast as in a RC car type use! I haven't even needed to balance since last Xmas!
Thanks Justin at http://www.ebikes.ca/
Thanks to Methy at http://www.methtek.com/
And Dave who has Nomex, fets and current sensors etc. STUFF
My YSR build. viewtopic.php?f=10&t=18183
Finished http://www.youtube.com/watch?v=BRo8r5g4NBg
RC lipo and most other types of Lithium batteries you MUST know your individual cell voltages charging and discharging.
Don't keep them under your bed or were you cant afford smoke or fire!
Never above 4.2v never below 2.7v EVER!!!
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Re: Motorino XPn 2011

Postby mistercrash » Mon Sep 19, 2011 10:47 am

You can tell me that you have some HK lipos that are going strong after 350 cycles all you want, I'm sorry I'm not convinced that every lipo you get from HK will do the same. Yes some lipos from HK will do much better than other lipos from HK and that's what bothers me. IMHO, a lipo that gives 80% of what it used to is not a strong lipo anymore. The quality control of the cells used is inconsistent. HK has really good prices on a lot of stuff and I buy a lot from them but when it comes to their lipos, it's a gamble. You may get something good or you may not. Some members in here enjoy tinkering and experimenting and reporting their findings in here which makes for an invaluable bank of data, I'm not after something to tinker on constantly to pass the time. This scooter I have is not a hobby to me, it's a necessity to go to work everyday and run errands. It HAS to be rock solid and very reliable as much as I can make it. Lithium Polymer is great for some stuff I have but I'm not going to put them in my only means of transportation. The chemistry is not suited for what I want. From what I know, Lithium Polymer don't do so well in cold temperature also. I'm up here living in the Great White North and my scooter sleeps in an unheated, uninsulated garage.
Running fine for a couple weeks and then something goes wrong so you work on it for a whole day then it runs fine for another week and fails again so you work on it again to make it go isn't something I wish to do.
I hope I can find the definite answers for what I need for a very reliable scooter that gives the performance I wish to have. If not, then I'll have to think about going back to fossil fuels :cry: I really wish I don't have to.
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Re: Motorino XPn 2011

Postby Arlo1 » Mon Sep 19, 2011 11:02 am

mistercrash wrote: It HAS to be rock solid and very reliable as much as I can make it. Lithium Polymer is great for some stuff I have but I'm not going to put them in my only means of transportation. The chemistry is not suited for what I want. From what I know, Lithium Polymer don't do so well in cold temperature also. I'm up here living in the Great White North and my scooter sleeps in an unheated, uninsulated garage.

I hope I can find the definite answers for what I need for a very reliable scooter that gives the performance I wish to have. If not, then I'll have to think about going back to fossil fuels :cry: I really wish I don't have to.

Yes Lipo will not work well in your cold winters.
As for HK lipo vs the rest you are right they are cheaper for a reason but I wont spend $2000 for 1000-1500 wh of lipo other wise I mite as well burn gas! I just got 1110wh worth of lipo for about 350 shipped from HK! That makes the e bike worth while for my brother then as batteries get better he will replace them!
You might have a hard time finding a battery for -20- -30 degC weather! You could have something to keep it warn wrapped around it like a heated vest!
Thanks Justin at http://www.ebikes.ca/
Thanks to Methy at http://www.methtek.com/
And Dave who has Nomex, fets and current sensors etc. STUFF
My YSR build. viewtopic.php?f=10&t=18183
Finished http://www.youtube.com/watch?v=BRo8r5g4NBg
RC lipo and most other types of Lithium batteries you MUST know your individual cell voltages charging and discharging.
Don't keep them under your bed or were you cant afford smoke or fire!
Never above 4.2v never below 2.7v EVER!!!
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Re: Motorino XPn 2011

Postby mistercrash » Mon Sep 19, 2011 12:46 pm

Arlo1 wrote:I wont spend $2000 for 1000-1500 wh of lipo other wise I mite as well burn gas!


I understand your point here. But $2000 is what I saved up to now by selling my car and riding an E-scooter all summer since the beginning of May. Two more months and I will have reimbursed myself the price of the scooter entirely. Running electric brings savings and it's cool. Now If I were to go with a gas scooter instead of going back to a car, I would still save money, maybe $300 a month instead of 400+ (cost of running the car I had was), I haven't calculated the cost of running a gas scooter. I just have become very passionate about E vehicles and want to run with one, I got sick and tired of the oil companies gouging my wallet every week. I love the no noise, no emissions attributes of E vehicles. There has to be a way, I don't want much, just go 31/32 mph, enough torque to keep that speed going uphill and a range of 35 miles. All this in a reliable package. That's not too much to ask :lol:

When it gets to -20 C up here, I won't be running the scooter, it'll be in storage for the winter. But I want to run it until the temps fall down to -5 C.
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Re: Motorino XPn 2011

Postby Arlo1 » Mon Sep 19, 2011 9:07 pm

mistercrash wrote:
Arlo1 wrote:I wont spend $2000 for 1000-1500 wh of lipo other wise I mite as well burn gas!


I understand your point here. But $2000 is what I saved up to now by selling my car and riding an E-scooter all summer since the beginning of May. Two more months and I will have reimbursed myself the price of the scooter entirely. Running electric brings savings and it's cool. Now If I were to go with a gas scooter instead of going back to a car, I would still save money, maybe $300 a month instead of 400+ (cost of running the car I had was), I haven't calculated the cost of running a gas scooter. I just have become very passionate about E vehicles and want to run with one, I got sick and tired of the oil companies gouging my wallet every week. I love the no noise, no emissions attributes of E vehicles. There has to be a way, I don't want much, just go 31/32 mph, enough torque to keep that speed going uphill and a range of 35 miles. All this in a reliable package. That's not too much to ask :lol:

When it gets to -20 C up here, I won't be running the scooter, it'll be in storage for the winter. But I want to run it until the temps fall down to -5 C.

I run my turnigy Hobby king lipo to -5 deg C I just think you would find Hobby king lipo to save you even more money. If you replaced the 400 dollar pack 2 times and still save money. But I have been riding mine for over 2 years and over 350 cycles and it is still doing me great.
Thanks Justin at http://www.ebikes.ca/
Thanks to Methy at http://www.methtek.com/
And Dave who has Nomex, fets and current sensors etc. STUFF
My YSR build. viewtopic.php?f=10&t=18183
Finished http://www.youtube.com/watch?v=BRo8r5g4NBg
RC lipo and most other types of Lithium batteries you MUST know your individual cell voltages charging and discharging.
Don't keep them under your bed or were you cant afford smoke or fire!
Never above 4.2v never below 2.7v EVER!!!
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Re: Motorino XPn 2011

Postby Gordo » Mon Sep 19, 2011 10:37 pm

I almost bought a used Motorino several times, but each time, the sellers were too busy when I was available, or did not show up as arranged. Lucky for me because in my frustration, I found a very knowledgeable and helpful gentleman who had several scooters he let me try and sold me a good scooter for a good price. With 20 X 40Ah LiFePO4, it will do an honest 80kmph and go 60km at 60kmph. All this for half the price of a Motorino.
Ray;
You do not seem to understand the answers to your questions that Arlo is giving you?
Quit comparing apples to oranges. Lipo is not lead. 20Ah Lead is not 20Ah Lipo.
From what little I know, 10Ah Lipo=20Ah lead.
Arlo is a very patient guy, even with old dough heads like me. I suggest you listen. You will have more success if you learn that skill.
We see the lead heads come here knowing everything there is to know about EV's. If they hang around long enough, they learn what to use to have a reliable ride.
X-treme 3KW Scooter...OFF ROAD ONLY....Giant 1KW 48V 24" Hubmotor....E-Apex 1KW 48V 26" Hubmotor, built 2012-05-26
Thanks Justin, for saving ES. May Grin Tech grow and prosper.
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Re: Motorino XPn 2011

Postby mistercrash » Tue Sep 20, 2011 10:47 am

Well I have to thank Arlo1 for his patience then :) You're probably right, I don't fully understand what was said in here and I'm kind of stubborn. My apologies. I am a bit scared to put lipos in my scooter but I should go past that. Thanks Gordo, also bluefang who suggested lipos and Arlo, I'm seriously going to look into your suggestions and find out what I need to go lipo. It IS probably the best solution for what I'm after. I didn't really want to build my own battery pack but if it's the best way then I should just bite the bullet and do it.

Thanks again
Ray
Is it ready yet?
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