Razor MX650 BTR Power Lithium Battery Pack Installation | 48V 20AH 2000W Kunray Brushless Motor

Installing my BTRpower E-bike 48V 20AH Lithium Ion / LiFePO4 Battery Pack on my Razor MX650 "MX2000 Build" Project. Been running (4) 12V SLA batteries for months now and it's finally time for a power delivery upgrade. In this video, I'll be showing you what I had to do and modify in order to properly fit it.
BTR Battery Packs:
48V 20AH: amzn.to/3ctFgA8
48V 30AH: amzn.to/3cnFIj9
60V 25AH: amzn.to/3wyWYJi
60V 35AH: amzn.to/3pPBW5u
72V 20AH: amzn.to/3PTolEH
72V 30AH: amzn.to/3RaXnKl
72V 50AH: amzn.to/3TkNVp1
Wiring Terminal Kits:
amzn.to/3AokkT3
amzn.to/3APi6NM
My build list (as of this time):
. Razor Dirt Rocket MX650 Electric Bike: amzn.to/3yS2U1A
. BTR Power 48V 20AH Lithium Battery Pack: amzn.to/3AtML1V
. MMG 3.0x16" (for 12" Rim) w/Inner Tube Combo: amzn.to/3cHk6ON
. MMG 3.5x10" (Needs Clearance Modifications): amzn.to/3PzjLMz
. 3.5x10" Inner Tube: amzn.to/3yZcZsi
. KUNRAY 2000W 48V: amzn.to/3zafycp
. DNM 165mm Rear Shock: amzn.to/3yUP9PA
. Pro Taper 8.6" Handlebar Pad: amzn.to/3Rl9Vit
. FOX Racing decal: amzn.to/3yUDtwg
. Nilight 6" LED 6000K Light Bar: amzn.to/3c5WcMw
. 7/8" Handlebar Light Switch: amzn.to/3nRkD2J
. Pro Chaser Voltage Step-Down Converter: amzn.to/3nUrt7L
. Spigen Phone Mount: amzn.to/3cq3Rpn
These are affiliate links, which means I may get a very small percentage if you decide to make a purchase. Thank you for watching and supporting this channel!

[@TURBOMOOSE]

I would suggest using the foam in the box as a padding for the platters tray to reduce vibrations from riding. Acts as a damper.

[@papawyatt5743]

hay pat just womdering if you can do a indef video on the wirimg fopr the battery thanks.

[@christianpudy4798]

Same lol

[@TURBOMOOSE]

Let's see 35 mph! Can't wait for you to feel the difference

[@PatOutdoors]

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.

[@Dommy_Doo]

Ive been lovin your videos lately, keep up the good work!

[@PatOutdoors]

Thanks, will do!

[@querochita]

@@PatOutdoors hello I have same tipe of battery same size please what size of fuse do you used on the charging and the discharging? Thank you

[@DirtDigglerDetecting]

You do such a Great Job. I really like that new battery. Fit perfect kind of. 40mph, good thing you disc breaks now :) hehe You Rock Buddy

[@PatOutdoors]

Thanks! You too!

[@DirtDigglerDetecting]

@@PatOutdoors How wwas your ride today ?

[@podge337]

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

[@PatOutdoors]

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.

[@christianpudy4798]

@@PatOutdoorshow to wire them up the battery to the Anderson connectors and what you need to do so

[@CALLMESpacee]

Hey thanl you a tons for the tutorial of setting up a btr battery. I been looking everywhere for this video do you have a more detailed video?

[@Chasedroog]

Dang man quality battery, very impressive. I really like your build, quite similar to mine

[@mikemoe3481]

Pat you should do 72v 3000w in the near future. It has very good torque . Love the content keep it coming

[@PatOutdoors]

That may be a plan for the next build actually..

[@RokeroLoko]

Just seen that video😂

[@ronerdeleon3049]

Hi I just wanted to ask why you need to install voltage reducer if the battery and controller are both 48v?thank you

[@PatOutdoors]

That’s only for the 12v accessories wired up like the headlight. The controller for the motor is still getting 48 volts

[@Puneet.K-z7r]

Hey pat why do have such good videos. just want to ask how much range did the sla batteries have

[@olegbeldii]

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?

[@PatOutdoors]

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

[@olegbeldii]

@@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

[@jeffreyericksonracing]

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.

[@PatOutdoors]

What part are you having trouble figuring out?

[@ACRvetracer]

Hi, we are thinking there should be a fuse at the battery in case of a short circuit. We don’t see one in the video. Thanks

[@PatOutdoors]

@@ACRvetracer You can add an inline fuse for the power line to the controller.

[@jeffreyericksonracing]

@@PatOutdoors Ok Thank you! We are going to use a 30 amp fuse, is that a good size?

[@kennydifficult666]

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 ☘️☘️☘️

[@PatOutdoors]

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

[@kennydifficult666]

@@PatOutdoors thanks for the insight bro and keep being a legend your content has been a huge help 🙏🏾☘️

[@StarTrooper47]

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’m already 72volts on this bike today. Don’t think there’s much more space in the factory covers, max 28 ah maybe

[@StarTrooper47]

@@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

[@baitcarp]

"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

[@PatOutdoors]

@@baitcarp this is correct, I think he may have misunderstood that.

[@internalbeats6870]

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.

[@PatOutdoors]

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.

[@internalbeats6870]

@@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?

[@PatOutdoors]

@@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..

[@internalbeats6870]

@@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.

[@PatOutdoors]

@@internalbeats6870 Thanks! well then if that’s the case, their 72v kit with at least a 20AH battery would do the job.

[@microsoftword4045]

What’s the range on it

[@patv6928]

Pat , did you upgrade the wheels / tires

[@PatOutdoors]

Stock wheels, though tires are upsized DOT street tires

[@jakubthewildbirdsaver2947]

Isn’t cutting out the top tray gonna weaken the frame ? Because I have one and I want to do the same

[@PatOutdoors]

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.

[@jakubthewildbirdsaver2947]

@@PatOutdoors oh cause I was thinking when you hit a bump or go off roading the frame will bend a little from the bumps

[@jakubthewildbirdsaver2947]

@@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

[@PatOutdoors]

@@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

[@jakubthewildbirdsaver2947]

@@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

[@keithturner7635]

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.

[@keithturner7635]

Just need a semi recap on a past question. You've really helped me thru my razor build journey. Preciate it mane. Stay blessed

[@PatOutdoors]

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

[@keithturner7635]

@@PatOutdoors the fast scooter overvolt controller

[@PatOutdoors]

@@keithturner7635 Ooohhh the brushed controller.. Yeah you can hook it up to charge through the controller then

[@keithturner7635]

@@PatOutdoors Word. Thanks again and stay rollin bro.

[@keithturner7635]

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?

[@PatOutdoors]

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.

[@kjam640]

Wassup brotha! Does the BTR battery/charger tell you when the battery is fully charged?

[@PatOutdoors]

The charger light just turns from red to green

[@Burrito_on_120]

where did you get your supermoto wheels?

[@Jsosodke]

I got the vevor 2000w motor and I wired everything up, however when I give throttle the motor barely spins a millimeter, please tell me how to fix it

[@Delux15]

Hi Pat, I have this same kit with the same battery and a 13 tooth sprocket and I’m only hitting 32 mph Do you know why that might be?, Thanks

[@PatOutdoors]

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..

[@matthewkx1006]

What is a voltage step down for

[@PatOutdoors]

12v accessories like an LED headlamp should not be run on 48V. It would burn out immediately

[@javon161]

Not sure if I missed something but why do you have a voltage reducer if the whole power train is now 48 volts

[@PatOutdoors]

I don't. The voltage reducer is ONLY hooked up to the LED headlight.

[@danescoasters7163]

thinking of getting this battery and motor/controller combo. how easy is it to install for a beginner with 0 experience?

[@gollygee23]

What did you end up doing? I’m also a complete beginner

[@billyhendrix]

How much range did you get with the upgrade, and how many volts until the BMS kicks in on that battery to say its dead?

[@PatOutdoors]

Tested this in a separate video. Starts fully charged around 55 volts. Got about 26 miles before it cut off at 43 volts.

[@SirusTheVirus]

How was the BTR battery? and would u have any stock 650 motor or controllers 4sale?

[@PatOutdoors]

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

[@arturamaralable]

Is it possible to not cut metel if you have a razor sx500

[@PatOutdoors]

Yes. The sx500 has more room for a large battery. I recommend measuring your battery tray before purchasing a battery

[@arturamaralable]

Ok 👍

[@arturamaralable]

Would a vevor 2000w motor work and give the same top speed?

[@PatOutdoors]

Top speed is mostly dependent on Battery voltage, the speed controller and the tune.

[@Oliedo]

What is the range on the sla battery

[@PatOutdoors]

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: kzbin.info/www/bejne/mH_CqahplN95hLM

[@Oliedo]

Is that 20 miles with full throttle?

[@PatOutdoors]

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 just got the fastscooter charger but it’s not charging do you know how to fix it ?

[@PatOutdoors]

@@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.

[@mdc237]

Could I use the BTR 48v 20ah battery on the stock rsf650 with the stock motor to just increase my range and slightly boost mph to like 22?

[@PatOutdoors]

As long as the dimensions fit your tray, yeah that should work. 22 MPH is also right in the ballpark range (+33% current top speed)

[@Oliedo]

Do you think I can put a 48volt 30ah

[@PatOutdoors]

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

[@narellehopkins4989]

is there a way i could do this to a bicycle

[@PatOutdoors]

Yes, but the frame would have to have space for it. What kind of bike are you thinking of?

[@narellehopkins4989]

it is a normal mountain bike and what battery

[@Bassin07Si]

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.

[@PatOutdoors]

This failed after a while, now I have 72V amorge

[@cii5korea217]

@@PatOutdoorswhere did you purchase the amorge 72v?

[@onionboy6934]

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

[@PatOutdoors]

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.

[@onionboy6934]

@@PatOutdoors and this will be ok with the 2000w motor?

[@tyronesharp8115]

btr battery been causing fires lately...

[@stevenscoolin]

Would you sell me those old stock batteries lol?!!

[@PatOutdoors]

Maybeee.. Depends if I pick up a second project for my lady to ride on.

[@stevenscoolin]

@@PatOutdoors I only joke! Ha I appreciate it though like your bike a lot been following your progress!

[@tronoss5181]

Y o

[@onewheelmac]

will a vevor 2000w motor work with the battery?

[@PatOutdoors]

@@onewheelmac Depends what controller you are using.. just has to be rated as the same voltage as the battery

[@mozzde4675]

What’s the range on it