Hard to say what my real top speed was because there was so much elevation changes on our ride. Some uphills my bike was struggle bussing to even go 12 MPH (but SUPER steep climb), but then goes over 40 MPH bombing down hill. I have to do a separate top speed run on the same road I usually ride on by my neighborhood since it's got long flat sections. I wanna say you are about right with 35ish though.
Hey pat I love the builds trying to do one too people say the btr battery you use are not reliable and catch on fire I wanted to know how long you had yours and does it still work?
This 48V battery failed on me after one month and I replaced it with a 72V BtR battery as well due to my budget at the time.. it still works just fine today (after almost two years), but I’m likely upgrading to either Amorge or electro & co very soon
@@PatOutdoors thank you very much my budget for battery is $350 and wanted to see if this would work and side question did the battery fail cause it was a bad battery or is it just a btr battery problem
Hey i bought the same battery and motor and controller because of your videos, do you use fuses? I just can’t even figure it out and i don’t wanna burn my house down.
Hi I was wondering if you had or could do a tutorial battery of how exactly to wire a btr battery in. I have a myway electric bike and upgrading to a btr battery. It looks similar to the wiring you this on this but just to have it broken down slower thanks
What do you mean how to wire it? It has four wires total. Two wires go to the charge port, two wires go to the controller. Check out my newest video, which should give you a better idea.
Started modify my project mini and I installed the vevor 48v but ran stock 36v battery and won't give any motor throttle response 😓 thinking a battery upgrade would fix that so I can finally rip it ☘️☘️☘️
Yeah the 48V controller is not designed to work with 36V.. it’s got an internal cut off not to power on the bike at around below 41V. You either need to add a 4th 12v battery to run in series to convert to 48v or just buy a lithium battery
Thanks for all of your videos and insight. I have a couple MX650s for my son and I. I am going back and forth with trying to decide on either the Amazon power upgrades motor/controller/battery kits or electro and co. I’d rather not have to spend E&C prices of the Amazon stuff has longevity. You seem like you may do a lot of research as well. Do you think the Amazon “stuff” will last? Thanks in advance for your help.
I really like the Kunray kits as a budget complete kit to start with l, but the controllers simply don’t put out as much as the Kelly controllers that come with the E&C kits so you’ll get power hungry eventually. It really depends what your goals are with the bike.
@@PatOutdoors wow, thank you for your quick response. I totally agree with the power hunter. I want to do it once, so my plan is to go for a 72v kit right out of the gate. I just wondered if the quality of the Kunray will sustain a few rides each week of heavy neighborhood riding. Do you wish you would have just done E&C or are you satisfied with the Kunray / Amazon upgrades?
@@internalbeats6870 well I can confirm the original 48V Kunray motor has been holding up well over the last year or so, going through (3) different controllers in search for power. I kinda wish I would have gone with their 72v kit from the beginning, but I simply do all this to experience the differences between all stages just to educate myself. The Kelly controller upgrade I just did was simply an experiment to see if it would actually gain more torque and reach a top new speed with ONLY changing the controller and I can certainly confirm it’s a must have if you’re power hungry. But I’ve finally reached my goals and happy with where my bike is now..
@@PatOutdoors you’re very thorough in your videos, for that I’m extremely grateful for your shared experiences. I’m not looking to build an unridable monster. We have a lot of steep hills in our big neighborhood, so I want the power to climb them, the battery life to enjoy the bike longer than an hr, and the reliability to have to buy everything a second time. That’s not too much to ask, right? Lol Again thank you for your responses and help. I Look forward to your future videos.
I see you are running a 48v 20ah lipo battery pack. I took 4 12.8v 10ah batteries and hooked 4 up to make a 48v 40ah battery pack but I want to double my range on my Mx650 2000w Vevor motor n controller. so you should try 8 12.8v 4x2 in series producing 48v 80ah now you can go 60+miles on a charge.
@@PatOutdoors I would have to make a custom cover but what people usually do is cut off that second shelf the little one that way you can make room for the bigger battery pack in my setup I'm running 4-12 volt lithium iron phosphate alarm batteries 10 amps each I am thinking about running eight of those to make 80 amps that would be eight batteries. With the setup I have I can do at least 34 mph
"I took 4 12.8v 10ah batteries and hooked 4 up to make a 48v 40ah battery pack" Four 12v 10ah batteries does not make 48v 40ah... that's 48v 10ah if wired in series
Different rear tire overall diameter. This bike was running a 3.5” wide street tire in the back (paper thin clearance against the motor), also I weigh 170 at the time, not sure how much you weighed. This bike goes over 50 now with a different 72V set up though..
What up Pat. Quick question. Once the lithium battery is installed, do I have to unplug the battery from the controller to charge and if the charger connector fits my razor charger port perfectly can I use my fast scooter overstock charger?
The lithium battery I used came with its own charge port and charger. I installed that charge port on the side cover. And no, please DO NOT try to use lead acid battery charger on a lithium battery.
I had issues with my first 48V pack, but warranty took care of me and I got the 72V pack not long after and it's been good since. I don't have any factory controllers anymore, only brushless controllers
Hey Pat l, what's going on. Keith again. Just got my lithium battery. Plugged it up good to go. Haven't driven yet though, just got charger for battery today. So my question is.......if my charger fits my charger port, can I charge battery through controller? Or do I have to charge straight to lithium battery? Lithium battery that I ordered has white connector that fits the charger port I have.
What controller do you have? I still recommend having the charger go to the charge port, then from charge port directly to the battery wires. Skip the controller
Nope, it just holds the top battery. The SX500 doesn’t even have the upper tray. Everybody with an MX500 or MX650 with a lithium battery installed has to do this.
@@PatOutdoors thanks for telling me I sure can’t wait to upgrade my dirt bike the same way as my dirt bike’s original circuit board is starting to fail
@@jakubthewildbirdsaver2947 it’s not a structural part of the frame. That specific part’s purpose is specifically to hold a battery. Google what a Razor SX500 frame looks like
@@PatOutdoors I know what the frame looks like it’s just I was just making sure cause I go off-roading a lot and going off ramps and stuff but thanks for telling me
Is this battery still going strong?? I know everyone recommends amorge but I just need something for my wife's bike thats 48v and around 20ah and I don't want to wait forever.
Depends on the manufacturer’s dimensions and shape of the battery. Also depends if you care to have the black plastic side covers on. Some people jam a 72v 34Ah on their bike and not have the plastics
when I click the battery link I get a (48v 10ah 168$) and it looks different the other option is a (48v 25ah) and its a lot more pricey 439$ i cant find your 48v 20ah
Maybe they don't have it in stock anymore. If you don't need a very high output, you can do an 18ah one with 30amp output like this: amzn.to/3Z5L7P0 You gotta cut the upper trey from the frame to fit it still.
I wanna say 20 miles? It's been so long since I had this set-up. But I did a range test video immediately after this one: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-bN_xu3_zFNQ.html
Yes, mostly. A lot of hills though if you watched the video.. I just re-read your question. 20 miles with the BTR pack on this video. Your question said SLA, which is my super old set up. That's probably like 12 miles
@@Oliedo I recommend contacting the seller you purchased it from. I've never had an issue with mine. The wiring from the charge port to the controller could have been hooked up incorrectly.
