ฝัง
- เผยแพร่เมื่อ 11 ธ.ค. 2024
- bunch of random clips taken over the duration of converting a cheap pit bike into an electric version.
bike is 12/14" wheels with "crf70" size frame
gearing 10t front 50t rear
parts sourced on aliexpress:
qsmotor 138 70h "3000w" motor
votol em150 controller 200A max
4 x 5s lipos in series for 20s/74v 27ah 25c battery
akcnd throttle box
insta@dialectual
Thanks so much for doing an acceleration test. So many people just spin the tire in the air and call it good.
Bro so sick what battery did you use and where did you get it?
Awesome build Iam doing a grom right now with a 4kw motor I have a 14t up front and 50 in the rear I hope it still has a good acceleration i don’t want to get to big on the rear
As in the qs 138 90h 4kw motor?
Did you need a longer chain. If so do you know how many links extra thanks. I’ve got the bigger wheeled tenten pit bike thanks
Hi would you please post the link to the engine. And does the programming cable include in the package
What. Cells are you using ? And do you have a link?
Do you have to remove the cover to charge the bats every time?
you ever check out the asi controllers can increase the rpms without changing your torque output with the same sprocket
Are you referring to flux weakening? If so the votol has this ability however increasing the rpms is at the cost of more amps used, the other alternative to more rpm is simply higher voltage however there is a saturation point where the motor can not put out any more torque/rpm without causing excessive heat
So sick dude I'm getting closer and closer to finishing mine. Check out part 1 and 2 on my channel if you haven't already! Also where did you find those 5S 27AH lipos?! 60mph top speed is awesome. What has your ride time and or range been like? I wish I had someone to film me...cue the 🎻
Thanks buddy, I have just checked it out, awesome start so far!! The lipos were on AliExpress, and bought on a whim but so far they seem very promising for the price, ride time is very similar to my smaller 2000w(18s20ah) bike which is expected as whilst this bikes battery is slightly larger, the bike weighs slightly more, draws more amps, larger grippier tyres etc etc but still a good 15-20 mile range with how a ride and damn there's no way you can't crack the throttle every five seconds it's just too addictive haha
I’ve built one and there was no torque. I’m on the bigger wheels and I need to massively change the gearing but the biggest sprocket I can find is 48t. Where did you find your 50t. Before I melt this huge motor.
What size front sprocket?
@@VOLITANT 14t it’s the tapered one
@@dickiewithers9564 14 is quite a bit tallertl than mine, I'm running 10t front, 50t rear and 150-200A
I’ve found that vl125 sprockets are 76mm and they do 56t on a 428.
Nice build man I’m debating building my own with a pit bike frame in the uk using the same kit you got here 🤔
Was it worth it converting it to electric
No WAY!??? does that actually work?
3:38
also First!
Sure does! My charger essentially sees the battery as a huge 5s 108Ah battery when all 4 are in parallel, you can buy cheap balance boards which I tried but it gave dodgy cell resistance values so I made my own balance lead instead
@@VOLITANT how did you do it? Just solder together the connections from the equivalent cell from each of the 4 packs together to the final lead going to the charger? You don't really even need a bms for convenient charging with that set up as long as you don't overcharge then the controller takes care of the lvc...nice dude, nice
@@vincentpernicano3277 yeah that's it, all the leads in parallel, yeah I have no BMS as the charger balances them perfectly every time, Im sure there's some good BMS out there but have seen quite a few people have problems and for the money (£100 charger set up) it's a lot cheaper and reliable, in the future I will make a harness which allows the pack to be charged in the bike as well
@@VOLITANT Ah I see the caveat is that you have to disconnect your series connections and re connect them in parallel to charge...makes sense. I'm curious how you would set it up so that you could charge it without having to swap the connections to parallel 🤔. Also you say the two psu in series gives you 24V so how are you charging up to full voltage (82-84V)....does the isdt handle that?
@@vincentpernicano3277 yes that's correct initially when I built my first bike I was concerned the lipos would get beat up inside the box during riding so I made it so that I would remove the batteries for inspection each time but now I know that they are completely fine I had thought about simultaneously wiring the parallel charging loom in tandem with the series output loom to power the bike all inside the box so that it can also be charged still in the bike but haven't tried it yet.
The isdt only charges up to 8s and operates on 10-40v but requires at least 24v for 30A output but because each of the 4 5s lipos are plugged into the charger in parallel it only sees it as one giant 5s 108ah lipo (27ah x 4) and as long as all 4 batteries are drained at the same rate each time which they are in the bike the charger will safely balance all cells at the same time.
What did you do with the old set up?
Still got it!
What do you have for your over and over voltage, under voltage, and soft under voltage in the programming settings? Also is their anyway I could get the setting parameters that you did I want to get the same results as you and I have the same setup.
On the first page other than the busbar current I left all the parameters stock, and I would share the other pages but when I first got thist motor and controller I complete messed up the other pages settings and had to start from scratch, and I read a few of the newer model controllers values don't mean the same thing on the older version so I can't really recommend using my parameters as it could damage your controller or just not work at all, it's a bit of a risk
@@VOLITANT ah I see well thank you for helping me!👍
What kind of range do you get with this kind of battery set up?
There's many factors but on average how I ride I get 15 miles but 30 miles is possible if you ride efficiently
@@VOLITANT that’s pretty crazy considering their only rc car battery’s, what battery’s are they specifically?
@@ontariodoublex2713 this bike is using 4 X 5s 27000mah 25c lipo packs in series for 20s 27ah, easily capable of 400A+ output but controller only set to 150-200A
What gauge wire did you use for the battery to connect for the lipos? Also I see you have one of those hard on off disconnects on the battery is that rated for 72v or is that on of those 12v 300a battery disconnects because I can’t find anything 72v
Using 8awg to connect each lipo together but the main two output wires are 6awg , and yeah it's a 12v version, some come with 8mm contacts and some 10mm but they both seem to handle the current fine even at 200A there is no heat but as I say they can be built slightly differently as there's a lot of them
@@VOLITANT awsome thank you so much for that knowledge! I was really wondering about that Contactor and the wiring thanks!
Hello, good night, friend, greetings from Colombia, what is the name of the dimer or potentiometer that brought the conversion kit that accelerates your engine that is excited by gualla
It's an akcnd throttle box from aliexpress
@@VOLITANT Ok friend thanks melodies the link to buy it
How long the battery lasts and where (if) can j buy a kit
Really depends on how/where you ride and many more factors but I get approximately 10-15 miles but if you are effecient you can push 30-35 miles
@@VOLITANT also where can i buy a kit if ican
@@konjenix769 AliExpress or directly from qsmotor motor
@@VOLITANT is it just a motor or does it come iwth controller batteries and a motor?
@@konjenix769
just the motor and controller, battery has to be sourced separately
so good i like and sub :D
oiooioi 3000w look good
👌👌👌
WOW⚡⚡⚡⚡⚡👌👌👌👏👏👏👏💫⭐🌟🌟🌟⭐⭐⚡⚡⚡
Top speed.
With current gearing and flux weakening 60mph
Alright mate if I sent you money could you make the mounts and frame for me ill pay good money for it to be fabricated and labour
How long does it take to charge the battery from 0 to 100%?
About an hour and a half
@@VOLITANT thats not to bad, thanks
@@the_garage_therapist yeah it could be a bit faster but I'm charging at the maximum safe charging current which should extend the battery cycle life a bit more
@@VOLITANT ya better safe then never! So I am build a bike like that and I just ordered the same battery and I have this little Lipo battery charger that can charge the battery’s separately but do you think it will work if I change the pack as a big 5s lipo like you said. Here’s the charger Tenergy TB6-B Balance Charger Discharger 1S-6S Digital Battery Pack Charger for NiMH/NiCD/Li-PO/Li-Fe Packs LCD Hobby Battery Charger w/ Tamiya/JST/EC3/HiTec/Deans Connectors + Power Supply 01435 www.amazon.com/dp/B00466PKE0/ref=cm_sw_r_cp_api_glt_fabc_KGCFA04HZGJY20NTSTQS?_encoding=UTF8&psc=1
It only charges at like 5 amps max but do you think it can temporarily do till I get the setup you have?
@@the_garage_therapist yeah if you wire all the lipos in parallel the charger will see it as a massive 5s lipo (same as my set up) depending on your capacity though 5 amps may take a long time but it will definitely charge it eventually.
Also take note that each 5s lipo should be at as close as possible voltage across all the cells on all the packs before parallel balance charging
Hey awesome video. Could I message you on instagram or something. I’m doing a similar build and looking for some advice. Thanks