im in the process of building a rsf350 microbike im thinking of hiding the controller on the top tube and the mounting 2 48v 10ah batteries in parallel
Just tested it, still short about 0.4". I'm ok with the way it looks anyway. The controller, voltage step-down converter and all the wiring still have no place to fit inside the box so the top would have to be hacked up to make it work.
The throttle curve/response, whatever you want to call it, is really bad on those amazon kit controllers. Throttle is really touchy in the low range. If you want a MUCH better throttle curve experience, try one of the Kelly controllers from Electro and Co. It's not as easy to get hooked up as the amazon kits but getting it from them makes it much easier than anywhere else I'm aware of. I have purchased 2 from them so far for builds I've done and I'm telling you, it's a huge difference. You will also get more power from the motor overall. Well worth it once you go to 72v.
Thanks buddy! Yeah really considering the Kelly controller to give it the full potential. I may actually just transfer this controller with a new brushless kit I just got for other of my other bikes.. We'll see about the temps (fingers crossed)
@@PatOutdoors yeah man. Itll be awesome to just move that stuff over to another bike. Legit what im doing with my bikes aswell. I'll tell you what I had my buddy who has same build as me with the kunray controller and he was upset that mine drive so much better and we had same voltage on our ride out with him being 20ah and me being 15.6ah.
@@TURBOMOOSE Well this isn't the Kunray controller and throttle anymore. That was like an on/off switch lol. This is the throttle from my fast scooters kit that I re-pinned to work with a Cozyel 45Amp controller. So much better power delivery and modulation compared to the Kunray controller, but still could be improved with the Lonestar Kelly piggyback kit.
@@PatOutdoors gotcha makes sense! Even with those improvements all that torque is scary lmao. You have such a little pocket monster on your hands brother!
Just because of my previous modifications. I took baby steps and installed a 48V brushless kit first with a 48V battery before this set up (due to a low budget in the beginning.) Had no plans on going 72V, but just got power hungry eventually
@@PatOutdoors OK. Looks like the max speed I've noticed is 45mph. If you're getting that with 48v motor I guess it wouldn't make sense to upgrade to 72v unless through time the 48v motor will wear faster since overloaded. Any insight?
@@waynelt3420 Exactly! I'm still riding this same set up today with very little sign of excess wear to the 48V motor so I've had no reason to change it over. But when it eventually does.. I'll just swap over a 72V motor since everything else is already designed for 72V so it'll be an easy swap when time comes.
Not worth it. Just save up for a better battery at that point, like an amorge 48v 20ah with at least a 50 amp BMS. Do you have a good controller to support it?
@@PatOutdoors so 300 is my max budget here . I'm going 35 mph already w rear 1500w hub on a pedal bike . If I can go 40mph I'm happy , and not catch fire and explode that's even better . is the LIFEPO BETTER than my lithium 35 BMS ??? do I really need 50amp bms if it don't need high speeds over say 45 ish ??? And I wanna stay sub 300$
The controller I recently installed is designed to be compatible for 48V and 72V. The bike previously had a 48V battery and 48V only controller, swapped out the controller and battery to 72V.
Another thought I had for maybe a different bike. Get a 72v brushless motor then buy a 96v battery, a Kelley controller, and see what type of overvolt power that would get ya.
@@PatOutdoors it’s 200x150x350 so the 200x150 side will fit the razor tray it’s the height of 350 that will make it hard to fit in The mx650. Should fit an sx500 just fine though.
Them batteries are some of the most unsafe batteries. Be safe and save up to get better battery. They are made cheap and with low grade cells. Do some research there are vids of how bad they are. Very known for catching 🔥🔥🔥 fire. Get rid of it asap.
That’s fully dependent on what controller you are running, controller settings, motor type, motor sprocket size, rear wheel sprocket size, rear tire size, and rider weight
Hi 😀 has the BtrPower lifepo4 Battery a good quality? I need and search for a good lifepo4 72V 50-60AH for my eTrike 🤔 It has lead acid and after 3000km they are nearly dead (only 10-15km range left from 50km) 😵💫 Not many 72V to find and so expensive ohh no 🙈
Take a piece of plastic and Heat gun and make a spacer for the plastic shell. design a jig out of wood and lay the plastic on it and heat it up. I have made a gun holster out of cat litter plastic box. WOW that top speed. DUDE That is Crazy Fast. Wheelie time WOW..... LOVE THIS stuff.
Haha I'm too lazy to do all that for the cover. I'm pretty happy with the way it looks as is. I may just improve cleaning up the wiring a bit more when I refinish the frame.
I am a lithium battery specialist. Lithium batteries are powerful and lightweight. If you change from lead acid to lithium. Speed can be increased by 30% (if your motor allows it). 20ah lead acid to 25ah lithium, mileage can also be increased by 30%.
Yes they are, though I would recommend adding a layer of foam at the side you're going to lay it down on, for added protection for the BMS inside the battery.
Check out Eon lithium for custom built batteries. They build for the razor bikes. Can do a 40-50ah 72v battery that will fit in tray of razor and clear that shock. They use Tesla grade 21700 cells and 300A ANT BMS systems. They aren’t the cheapest but probably the highest quality you can get.
I like the way it looks as is, may just make a box at some point. The controller, voltage step-down converter and all the wiring still have no place to fit inside the box so the top would have to be hacked up to make it work.
I bet that battery would work and look fine with the cover on it and just leave a little gap in the center and run longer screws to hold it together if needed. Looks like fun man! I got a razor ground force drifter I modded with a 48v brushless kit and 12.8ah lithium battery, can run 33mph!
@@PatOutdoors looking forward to seeing that video love the contact.. do you have any problems charging it or anything like that because everybody in the razor group say that those batteries are bad??
Just get longer screws to hold the plastics on
Great video.Pls how many miles do you go on this
im in the process of building a rsf350 microbike im thinking of hiding the controller on the top tube and the mounting 2 48v 10ah batteries in parallel
Lets gooo! Its crazy to see the progression from stock. Ive been watching from the beginning. Keep crushing it.
Thanks! Stay tuned for more to come
Move shock to upper bolt.
Thanks for the tip, that should deff buy me a bit more clearance.
the gap in the cover is the width of the frame. Just a thought.
Just tested it, still short about 0.4". I'm ok with the way it looks anyway. The controller, voltage step-down converter and all the wiring still have no place to fit inside the box so the top would have to be hacked up to make it work.
no way im going to use the same parts for my e bike quik question what was the fastest speed you got and at what gear ratio?
The throttle curve/response, whatever you want to call it, is really bad on those amazon kit controllers. Throttle is really touchy in the low range. If you want a MUCH better throttle curve experience, try one of the Kelly controllers from Electro and Co. It's not as easy to get hooked up as the amazon kits but getting it from them makes it much easier than anywhere else I'm aware of. I have purchased 2 from them so far for builds I've done and I'm telling you, it's a huge difference. You will also get more power from the motor overall. Well worth it once you go to 72v.
Fully agree.. That's ones thing I cannot wait to upgrade. Not to mention it supports a much higher amp output
@PatOutdoors what will make the mx650 go faster?
I went with a 6x8x11 vertical battery with Samsung 50s about 45ah
Can you send me a link to the battery you used? I may look into that for my other bikes.
how much ride time do you get on it?
Do you have a suspension lift on it? if so what suspension
Awesome setup now but you really need a kelly controller. It's way linear and not so jumpy off the start. Lot more throttle control
Yeah, can't wait to upgrade that next
Time for a Kelly controller man. Get that throttle smoothed out, keep Temps down and battery lasting long. This is so awesome man!
Thanks buddy! Yeah really considering the Kelly controller to give it the full potential. I may actually just transfer this controller with a new brushless kit I just got for other of my other bikes.. We'll see about the temps (fingers crossed)
@@PatOutdoors yeah man. Itll be awesome to just move that stuff over to another bike. Legit what im doing with my bikes aswell. I'll tell you what I had my buddy who has same build as me with the kunray controller and he was upset that mine drive so much better and we had same voltage on our ride out with him being 20ah and me being 15.6ah.
@@TURBOMOOSE Well this isn't the Kunray controller and throttle anymore. That was like an on/off switch lol. This is the throttle from my fast scooters kit that I re-pinned to work with a Cozyel 45Amp controller. So much better power delivery and modulation compared to the Kunray controller, but still could be improved with the Lonestar Kelly piggyback kit.
@@PatOutdoors gotcha makes sense! Even with those improvements all that torque is scary lmao. You have such a little pocket monster on your hands brother!
Which Kelly do you recommend? I have an MX650 also. Thanks
Why did you go with a 48v motor and not a 72v since you had a 72v battery?
Just because of my previous modifications. I took baby steps and installed a 48V brushless kit first with a 48V battery before this set up (due to a low budget in the beginning.) Had no plans on going 72V, but just got power hungry eventually
@@PatOutdoors OK. Looks like the max speed I've noticed is 45mph. If you're getting that with 48v motor I guess it wouldn't make sense to upgrade to 72v unless through time the 48v motor will wear faster since overloaded. Any insight?
@@waynelt3420 Exactly! I'm still riding this same set up today with very little sign of excess wear to the 48V motor so I've had no reason to change it over. But when it eventually does.. I'll just swap over a 72V motor since everything else is already designed for 72V so it'll be an easy swap when time comes.
I have A CHEAP lithium 48V with only 35 AMP BMS . I think if I upgrade to a BTR 40 amp bms my bike will be faster for 300 $ ? What do you guys think ?
Not worth it. Just save up for a better battery at that point, like an amorge 48v 20ah with at least a 50 amp BMS. Do you have a good controller to support it?
@@PatOutdoors so 300 is my max budget here . I'm going 35 mph already w rear 1500w hub on a pedal bike . If I can go 40mph I'm happy , and not catch fire and explode that's even better . is the LIFEPO BETTER than my lithium 35 BMS ??? do I really need 50amp bms if it don't need high speeds over say 45 ish ??? And I wanna stay sub 300$
Did you also get a 72V motor/controller or just battery?
My controller is compatible with 72V. The motor is still the Kunray 48V 2000W
72v to a 48v controller? Am I the only one confused??
The controller I recently installed is designed to be compatible for 48V and 72V. The bike previously had a 48V battery and 48V only controller, swapped out the controller and battery to 72V.
Very insightful video, thank you 🙏🏾
Thank you!
I have same setup is there a reason mine only goes 25
I have a 3000w 45amp continuous same battery and 3000w motor
?
@@ryanmoss9420 I’ve never heard of a 72V razor going that slow.. what sprockets are you running? Also how much do you weigh?
The battery will fit in the case. The case has the 1.5 inch gap for the 1.5inch frame rail. Just looks weird off the bike. 💯👍
Hmm I will give it a shot!
He is right I have put 3 of those batteries in Razors.
@@MrHydroguy Just did it on my most recent build!
Another thought I had for maybe a different bike. Get a 72v brushless motor then buy a 96v battery, a Kelley controller, and see what type of overvolt power that would get ya.
i was thinking the same thing, maybe ill throw one on when my 72v bites the dust
Where do I find a 96V battery from?
@@PatOutdoors Combine two 48v. I was thinking the same thing. Not sure if the 72v controller can handle it.
@@PatOutdoors it’s 200x150x350 so the 200x150 side will fit the razor tray it’s the height of 350 that will make it hard to fit in The mx650. Should fit an sx500 just fine though.
@@Mr69elco You mean in a series..? Would that not overload the BMS on both batteries?
Them batteries are some of the most unsafe batteries. Be safe and save up to get better battery. They are made cheap and with low grade cells. Do some research there are vids of how bad they are. Very known for catching 🔥🔥🔥 fire. Get rid of it asap.
Sounds like a guy who has never bought an armorge.
Yesssssss!!!!!!!!
How do you like the battery's performance?
Not bad, still good to this day. Power output is a bit inconsistent when it gets below 68 volts though
So it is ok to install a 72v battery on a 2000w motor and controller??
WITH a 72-volt controller, yes
It wouldnt harm the motor?@@PatOutdoors
I just got a 72v 80 amp btr battery with an 80a controller! Running the same 2000w motor ! What should I expect? Love your videos
That’s fully dependent on what controller you are running, controller settings, motor type, motor sprocket size, rear wheel sprocket size, rear tire size, and rider weight
@@PatOutdoors I’ll be happy with 45 mph
@@jeurycisneros17 I don’t see why you won’t get that with at least a 80 amp controller, street tires, and a 13-tooth sprocket
That’s for replying my man !! Hopefully I don’t fry the 2000w motor pushing 72v 80a 😂
Hi 😀 has the BtrPower lifepo4 Battery a good quality? I need and search for a good lifepo4 72V 50-60AH for my eTrike 🤔 It has lead acid and after 3000km they are nearly dead (only 10-15km range left from 50km) 😵💫 Not many 72V to find and so expensive ohh no 🙈
So far so good with my 72V pack! My 48V pack by BTR did not last long before failing though.. BTR took care of me with a refund for that one though
@@PatOutdoors thank you 👍
How much for that 48v ? Ill paypal you
That 48V battery had issues and BTR took in in for warranty exchange.
Take a piece of plastic and Heat gun and make a spacer for the plastic shell. design a jig out of wood and lay the plastic on it and heat it up. I have made a gun holster out of cat litter plastic box. WOW that top speed. DUDE That is Crazy Fast. Wheelie time WOW..... LOVE THIS stuff.
Haha I'm too lazy to do all that for the cover. I'm pretty happy with the way it looks as is. I may just improve cleaning up the wiring a bit more when I refinish the frame.
So what performance changes can i see from a 72v 20ah lead acid to 72v 25ah lithium.
I am a lithium battery specialist. Lithium batteries are powerful and lightweight. If you change from lead acid to lithium. Speed can be increased by 30% (if your motor allows it). 20ah lead acid to 25ah lithium, mileage can also be increased by 30%.
What tires are these called I need to get some of these forsure
What was the voltage when you got back home?
79.2V
@@PatOutdoors damn that’s good cause that thing was hauling ass💪💪
brand new battery in the rain ?????
So it's OK to mount these batteries on their side? Just purchased one and want to lay it down for a lower profile. Great video I appreciate it.
Yes they are, though I would recommend adding a layer of foam at the side you're going to lay it down on, for added protection for the BMS inside the battery.
Thanks. I appreciate it. Keep up the great vids
Check out Eon lithium for custom built batteries. They build for the razor bikes. Can do a 40-50ah 72v battery that will fit in tray of razor and clear that shock. They use Tesla grade 21700 cells and 300A ANT BMS systems. They aren’t the cheapest but probably the highest quality you can get.
Holy... That would be insane! Also sounds high budget AF haha
Pls link
Wonder if a 72v30ah would fit in a mx500🤔
Yes and a 72v 40ah they make them for them
Would you sell the 48v battey?
It went bad..
Just get longer screws for the cover and spacers.
I like the way it looks as is, may just make a box at some point. The controller, voltage step-down converter and all the wiring still have no place to fit inside the box so the top would have to be hacked up to make it work.
Badass!! Dude..
Oh yea welcome to the 72v club !!! Be Safe pat
Thank you sir!
Great build .
Nice!!! How many volts is your motor ?
This is still the original 2000w motor that came with my original 48v kit, just now running on a 72v battery and controller
I bet that battery would work and look fine with the cover on it and just leave a little gap in the center and run longer screws to hold it together if needed.
Looks like fun man! I got a razor ground force drifter I modded with a 48v brushless kit and 12.8ah lithium battery, can run 33mph!
That sounds awesome! What brushless kit and battery did you go with?
You gonna do a rage test?
I'll do a range test at some point, yes. Maybe attempt to do the same 32 mile route we did a few weeks ago
@@PatOutdoors looking forward to seeing that video love the contact.. do you have any problems charging it or anything like that because everybody in the razor group say that those batteries are bad??
I wouldn't say it's the best or most reliable battery out there, but it's affordable and they've been very good with customer support for warranty.