Ask an ebike technical question get an answer within 30 minutes or so.

[rschoi_75]

Hi! Quick question: Will the Luna Mighty Mini Display (500C) work with the Bafang Ultra?

More specifically on an Apollo. I want to use the smaller 500C controller instead of the DPC-18. Will it work? Is it just a plug & play type of swap? Thanks!

[paxtana]

As far as I am aware it is incompatible but I could be wrong. DPC18 was also incompatible until some update later on, maybe that's the case with 500c as well, though I wouldn't count on it.

[Torvin]

I have KHS 1000 for several years no problems. It is powering up fine ,I ride for an hour and it shuts off no power. Wait 45min. and it will power up and be fine? Pulled the battery, contacts look good the connections on the battery connection look good and the soldering connection are solid. Put everything back together went for ride same thing happened?

[paxtana]

Battery may need to be replaced from the sounds of it.

[73Eldo]

How long were you normally getting off a full charge? If you kept riding without charging after that 45 mins how far would you get? I'm wondering if you would still get your normal range or if it would quit again fairly quickly.

[Wozzy]

I recently purchased a Luna 860C display to replace a bad DPC-18 display.
I installed it on my fat-tire bike which has a Luna BBSHD with Ludi V1 controller.

I'm having trouble entering the advanced setup menu and was hoping someone could help me out.

I can enter the Advance Settings - Password Screen, but after entering the password (1919) and pressing the MENU button, it just throws me back to the Basic Setup Menu.



Note that the user manual says to press the POWER button to enter advanced setup (not MENU), but that seems wrong and does nothing.

I've tried several factory resets and also passwords 0000 and 1234 but no luck.

The only other weird thing is there are occasionally some random lines that appear in the odometer area.
Also sometimes the password values are red, and sometimes yellow.

Does anyone know what I'm doing wrong?

Thanks -- Wozzy

[Wozzy]

After entering the password (1919) I single press the MENU button.
This throws me back to the Basic Setup menu with the cursor (>) on the advanced setup selection.

FYI, It did let me enter advanced setup one time when first installed. I changed the Assist Levels from 9 to 5.

[Wozzy]

Contrary to what the User's Manual says, it turned out that the password was indeed 1199. I thought I had already tried it but now that's what's working.

[paxtana]

Glad to hear you got it figured out

[Jonothon06]

I purchased a previously owned bbs02B. I installed it on my 2006 jaris dual suspension mtn bike. I live in a small city(glens falls new york) and sidewalks and streets are very rough and are like trail riding. Anyways according to my gps and display on the bike i have reached a max speed of 43 mph. I am now wanting to upgrade to a much larger battery to increase my distance. All i have now is a 3lb block and it only lasts about 5miles on full pas. I need to know what type of controller i have in the bbs02 and if the programming has been tweaked, which i suspect because of the speeds i have been able to achieve. So how can i learn the ecact specs for controller and how do i determine the exact match for a new battery. Or can i just go big and get a 52v 20ah chinese battery?

[73Eldo]

If it started out as a 48v system (vs a 36v) you should be OK going to a 52v pack. Older firmware and displays may not display the correct battery percentage but if your display can be set to volts that usually works. The 'high power' 02's I think were 750w which is only about 15 amps at 52v. I don't think there are/were many 52v packs made with less than 20 amp BMSs so just about anything should be alright. Many of the 52v packs get put with things like the BBSHD's which stock do close to 30 amps so there are many 30a 52v packs out there and a little headroom won't hurt.

I would not risk anything on a random online battery. You may not even be getting what you are paying very little for as far as quality and it could easily turn out to not be safe either. Most of the battery fires you hear about are those no name batteries someone got a good deal on. Its even more risky if your streets are like offroad trails. A cheap pack isn't going to like vibration and cheap packs usually don't come with any mounting or real protection so even more chance of rattling around and being damaged which is really when the chances of a big boom happen.

There is a reason a pack like the Luna Wolf is so expensive. It uses high quality big name brand cells. Its fully epoxy potted in a hard case so it can't internally vibrate and it will take some pretty hard hits without any real danger. It also includes a pretty nice magnet mounting system. You buy a direct from China super pack you are likely getting no name or knock off cells and some of them may just be filled with sand. It will likely be held together with some hot glue and a thin layer of shrink wrap. You are going to have to invest some time and money into some protection and mounting and you could still end up with low range assuming it doesn't just fall apart or explode the first time you charge it or hit a bump. You start to factor that stuff in and the prices companies like Luna gets for their packs starts to look like a really good deal. There are other good battery vendors than Luna its just 2 of my 3 packs are from them so I know they are nice packs.

[Jonothon06]

Thank you. From the first day i searched electric bicycle and my eyes were opened to a whole new world that i wanted to be a part of, i have been. eyeballing luna's battery selections, watching their videos and reading everything i could about electric powered bicycles. So a few more weeks of saving to get one of theirs. I appreciate your response to my questions and respect the honest answer about wether or not to go cheap. to be honest id also like to know are there other people or shops building batteries like luna? Thorough testing with various motors, sacrificing controller, testing the limits of e-bike potential and actually helping people like me when i have a simple question that is not so simple ti me. I love all the videos and have actually spoken with guys at the shop who have helped me on the spot solve problems and give good solid answers. Thank you luna cycle

[Blizzard25]

I've been searching up and down for this replacement part, my freewheel needs to be replaced: https://lunacycle.com/replacement-cy...-with-adapter/

Is there anything equivalent to it that would work or is it coming back in stock any time soon?

[paxtana]

Given that is a stock cyclone part, you can likely get it directly from cyclone in taiwan.

[Old Man]

can luna's black box change a BBSHD with a 1000 watt controller to Ludicrous mood?

[paxtana]

Sorry no it cannot. Ludicrous is a hardware modification.

[StephenD]

Hi I am here to ask about possible battery / motor trouble my disabled vet friend is having with hub motor (golden Pie)& battery system kit he bought from luna cycle maybe 3 years ago. What is happening is when he presses the thumb throttle sometimes the system kicks or jumps but does not engage right away & he has to try several times to get it to go including turning it off & on again & at times while riding at about 5 to 8 mph(about as fast as he goes on it) it will cut off & do the same when trying to go again but the thumb throttle lights stay on thru all of this . I thought it might be the the throttle so changed it to new one but still same troubles & another friend checked the harness & connections & they are all good & the battery takes a full charge & still goes the same distance per charge as before.... so the question mainly is could this be the battery BMS or the hub motor & how do we troubleshoot to find out?

[paxtana]

Once it gets up to speed does it work fine? If so might be something wrong with the halls

[73Eldo]

Typically (but not always) a BMS cutoff will stay cut off till you reset it by charging it. If it comes back on its own or just by hitting the power button on the display I would be less suspect of the battery and more looking at connections.

Is this one of the Wolf Packs that Luna designed and built or one of the other packs they have sold over the years? The Wolves are the hard plastic cases and fully epoxy filled. They have metal rails sticking out the bottom for a magnetic mount and a 3 year old one would have had 2 about 3" leads for connections. They don't have any keys or lights or usb jacks on them. IF you have any of that stuff its not a Wolf.

[MemberOfDistinction]

Hello,
I am considering purchasing the following......


Bafang BBSHD Mid Drive Ebike Kit
750w Street Legal 68mm-73mm (Standard)
Stock 46T Steel Chain Ring
Bafang Display DPC-07
Luna Right Full Twist Throttle Blue $15.00
Mechanical Ebrake Levers with Cutoff GearSensor for Derailers and Internal Geared Hubs $45.00
Edit Remove

Another member was kind enough to help me but I'm too dumb to fully understand.
My question is....this is a 750watt kit....but can it be programmed to be a 1000watt kit as well without any hardware changes?
Also, does it include torque sensing hardware?

Thanks

[paxtana]

Yes you can change the config for whatever peak current level you want, between 1-30A. "street legal" is something like 20 or 25. Hotrod is 30. Watts equal volts times amps, so if you had a 52v nominal pack fully charge 58.8v x 30 = 1764W. That will change depending on state of charge of the battery and so on but you get the idea

[73Eldo]

I would only get the brake levers if your bike has some sort of rim brakes or road calipers on a disc. Anything else I would get the hydraulic sensors and use your existing levers. Also note what type of shifters your bike has. Some shifters attach to the brake lever, not the bar so you change one you have to change the other. Same thing with the right throttle, will it get in the way of your shifter? Some styles it does. Many of us go with the left side because we are getting rid of the left shifter anyway. The hydraulic sensors are just magnetic sensors you attach to what ever your existing levers are so it doesn't matter if they are antique rim brakes or the latest 4 piston hydraulics.

BBS's don't currently have a torque sensing option and would take some significant internal changes to accommodate such a thing. Rumor is there is a next gen coming soon, maybe that will have the option?

I would just order the 'hot rod' version which is what the Luna site defaults to. Pretty rare for anyone to want to dial one back. I think the only reason you would want to is for someone with mental and or physical limitations where you needed to force limits on them.

[StephenD]

Ok update of original question hope I do the reply right as not very computer smart .... first I had to look up what " Halls " are as I am E bike novice & not electrician & gotta say it does sound a lot like the troubles my friend is having with the ' bumping/jumping ' as it try's to start going & loss of power while running . I put the trike up on a jack lift to check if front hub motor/wheel would spin freely or had any drag & it seemed ok ,while I had it up turned it on & pressed the thumb throttle & it bumped a bit at first but then spun up very fast like it was going top speed ,tried this several times & it seemed to have no loss of power & always spins very fast .... so i decided to take a ride & immediately it had troubles getting going(lotta bump n jump) but once it did get going it would not go more than about 10 mph at full throttle & had loss of power several times with more bump n jump to go again ( sometimes only going about 3/5mph after restarting ) same when had to stop at stop signs.I got to the only stretch of road ( mile & half ) on the island with out stop signs & after many tries got it to go at full speed? 16mph or better (could feel a big difference in the feel of power & how fast it got up to speed )for the entire distance but once I slowed down to turn around had more of same troubles & could not get it back up to that speed again. ......... thoughts????

[paxtana]

You can test it by unplugging the integrated controller and following this guide

https://www.ebikes.ca/documents/HallSensorTestingFinal.pdf

If you need more help specific to this motor, golden motors has their own forum here https://goldenmotor.com/SMF/index.php

[2speedBBS02]

One more costly idea. Disconnect entire harness looking for contamination and poor connection. Was device left outside one too many times. If it worked when first set up then something has changed. I approach these problems by replacing components until it works again. The electric system is controlled in several ways. However "mistimed" electric signals produce poor performance. Or no movement at all. Heat is a symptom. Is a component getting hot. ?. Be thankful battery appears ok. Set it aside. I would buy a new controller. That's the device with buttons and screen. Then there is the mysterious hub. Buy new and better designed hub motor + rim. Some of this stuff is designed for Chinese people who have limited education so they are basically not so designed for repair. They are designed for easy assembly and operation. Upon failing the components are removed and replaced until system operates properly. That is not to say they can not be repaired. You need tools and understanding of electric power systems. Test devices to find problems are essential. Then the training to use the equipment. E-tecs make the big bucks. Guys like you and me are stuck with the former method described. Erik Luna could fix your problem in 10 minutes. However it is cheaper to buy a new bicycle.

[Tim]

Is the magnesium Bafang Ultra that you have for sale on your web site the identical motor that comes on the Apollo?
The reason that I ask is that I purchased the Ultra motor from Luna Cycles for my wife’s trike and I also recently received a brand new Apollo. The Apollo’s Ultra is considerably noisier than the Trike with the Luna Magnesium Ultra motor. If they are the same, why is the Apollo noisier? If they are not the same, what is the difference?

My last question concerns the Ultra programming. I love the power of the speed of the Apollo but alas I really don’t need it to be so aggressive. Do you all have a tamer (smoother) program for the Apollo, perhaps one that gives just a small amount of assist in Levels 1 and 2 but becomes much more aggressive in Levels 4 & 5.
Thank you.

[paxtana]

Same motor but maybe some minor variations. Spose you could open it up and add a little extra grease to it if you were so inclined

You can configure it same as BBSHD, using the same config software and program cable described here. May not necessarily want to use the preloaded profiles made for bbsxx though.

https://electricbike.com/forum/forum/builds/custom-ebike-motor-programming/bbshd-programming/43287-basics-of-programming-bbs02-and-bbshd-mid-drives

[Mutinyguy]

Have a 2012 Giant Talon that I want to install a BBS02 on...removing the Howitzer XR external bottom bracket I noticed the face of the shell is tapered...will that present a problem when torquing up the security nut on the BBS02? Will the face have enough "meat" on it to secure the motor?

[73Eldo]

Do you have a photo?

[Mutinyguy]

Actually I took care of the issue/concern....I forgot I had an ebike stabilizer bar from California ebikes...A few bends and fits nicely onto the chain stay...so no more worries about mucking up my bottom bracket shell...I'll get a photo up later today...