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

[ds3000]

Please let me start by saying "I AM A COMPLETE MORON"

I fitted a Luna BBS02 kit with 48v shark battery.

I attached the andersen connecters the wrong way round (BLACK TO BLACK - RED TO RED) with the battery in its cradle and switched on.

What ensued was what can only be described as a small explosion and fireball in my kitchen.

Suffice to say the connectors are both fried and melted.

I assume the controller is a gonner. I ordered a new one today. Would the battery be screwed too??

I am sorry to everyone - I am a moron.

[ds3000]

Thanks so much for your advice. I did buy the battery from Luna, I got the BBS02 kit last week. The order number is 87199. Do you suggest emailing Luna directly using the details on the website?

[paxtana]

Yes please email us. I see you are in NYC, we have a colleague Tony nearby you can drop the equipment off with and we'll ship you near gear. This will be fastest. But please do send us an email with a summary so we can arrange it. support@lunacycle.com

[ds3000]

Many thanks, I appreciate your help. I just emailed Luna.

[scoobyawef]

Are there any recommended rear racks for the Mosso F2 / Luna Folding Cycle?

[paxtana]

A seatpost mounted rack would probably work, no specific recommendations I know of though.

[Squeamish]

I accidentally bent the chainring on my Low and Fatty Wolf, most likely loading it into my car. I was able to bend it back with the claw of a hammer but did crack it in one spot and also at times hear a mild crunching noise every revolution so I'm concerned that after the bending and bending back it may be flexing every revolution and on its way to failure.

After noticing the 60T Sur-Ron sprocket has what visually appears to be the same bolt pattern and center hole diameter as my 42T Eclipse chainring, I'm wondering if it can be used in its place.

If you're able to confirm the 5-bolt pattern and center hole diameter on the 60T Sur-Ron sprocket is same or workable with my BBSHD and Low and Fatty Wolf pedals, I will see how it works. Extra speed is one reason I'd like to do this but not the primary reason. Primary is I'm already stripping my smallest gear on the cassette and getting a larger chainring would allow for the same speeds I go now at a lower gear with more teeth to distribute the load. Per your earlier suggestion, I'm also working on finding a SunRace steel equivalent to my stock Shimano (Altus CS-HG31 8-speed) 11-34T cassette.

I assume I'll also need a chain with (60-42=) 18 more links than my current chain.

If it won't work, I'm going to order a couple more spacers and the 48T Eclipse chainring and give that a shot. The spacers I have on my 42T seem to be withstanding the force well so thinking a couple more won't hurt.

[paxtana]

Surron chainrings do not have same BCD as BBSHD. You need to use a chainring built for BBSHD.

[Squeamish]

Thanks! I'll try the 48T Eclipse and order a few more spacers so the chainring clears the frame.

[Wamedrano]

Hi Is it normal for 52v mini charger to charge batteries to 57.2v even if selected 100% batteries are under 10 charges in use

[Tommycat]

Typically it is to charge to 58.8 volts. (4.2 volts per cell group @ 14s) Here is a great thread on how to check for correct voltage and current outputs, and possible adjustments with an accurate meter.

https://electricbike.com/forum/forum/knowledge-base/chargers/38871-how-to-adjust-the-luna-charger-mini-and-advanced

[Wamedrano]

The thing is it’s happening on all my batteries and I’ve double checked that it’s set to 100 for 1st 9 charges. Even thought is selected for 109% it’s only charging to 90

[Wamedrano]

I’m going to be building a cyclone build controller to be mounted under seat do you have cable extensions for controller to reach motor?

[HIGHVOLTAGE]

The Cyclone is a very heavy expert level kit. You're not gonna find a lot of things in it that make it easy to setup under all circumstances. In a case like this, you can extend the leads yourself with some crimping/soldering and some extra wire but there isn't going to be any Plug N Play harness. For that, you'll wanna go with one of our easier to install kits like the BBSHD or BBS02.

[Wamedrano]

I guess my question is do you sell the wire. I am aware of the DIY part of this kit. My other option is to buy banana but because of logistics I would need to take it today

[paxtana]

Sure there's a bunch of wire of various gauges in the connector section. https://lunacycle.com/batteries/connectors-and-wires/

[Wamedrano]

Assembled*

[billhuang]

Alternative mount for a dolphin: My bottle mount broke. What's a good alternative way to mount the dolphin? Will a dolphin fit inside a Lunacycle triangle bag?

THanks

[paxtana]

Yes it should fit in the bag.

[cupid]

If I wanted to put BBSHD ebike kit on my 2020 Giant Roam 3 Disc bike, can you confirm that I will need standard 68mm size BBSHD motor?

[HIGHVOLTAGE]

You'd wanna check with Giant Bicycles on the length of their bottom bracket. Companies like Giant and KHS will sometimes make changes to their bike specs making it hard to really confirm stuff like this without actually seeing it and measuring it

[cupid]

If I puchase Luna Eclipse 48T Chainring, do I need to purchase anything else to fit? I.e. Do I need to also buy Luna BBSHD 130BCD Chainring Adapter?

[HIGHVOLTAGE]

Nope, no adapters needed just as long as you're purchasing the actual full Eclipse chainring and not just the outter sprocket or the inner plate. Link for it should be right here:

https://lunacycle.com/luna-eclipse-chainring-for-the-bbshd/

This is all assuming that you're putting it on a standard BBSHD of course.

[paxtana]

Depends. Eclipse has a lot of offset so you might need chainring spacers or bottom bracket spacers if it is hitting the chainstay.

[nzwillie]

hi i have 1 of your bbshd kits installed on a normal mtb, im wanting to buy a fatbike .can i buy the just the parts to change the kit i have to fit the fatty or do i have to rebuy the whole kit thanks

[HIGHVOLTAGE]

Depending on the size you have, I think Cali-E-bike has something.

EDIT: Nvm it's for BBS02 only.

[Tripknowledge3]

Hi! Just got my sur Ron a few weeks ago.. got this squealing noise just started happening from either the controller, battery or motor.. attached is a link to the video.. can anyone help please.. thank you

[paxtana]

Does it change as your modulate the brakes

[kerrylaw7307]

Quick question.. I just received the "Luna Mini Charger clicking" fix. It is a small device with a male connector on one end and a female on the other. ( I think there is a capacitor inside.. ) I know it goes in-line, between my battery and my charger. I believe it has xt60 connectors on it. PROBLEM IS ... I removed the xt60 plugs from my charging setup and replaced them with Deans Plugs.

Question is.. 1.... Does it matter what end connects to the battery or charger? ( is it reversible? )
And 2..... Are my markings, on the new connector, of + and - correct ??? Thanks!!!

[paxtana]

Probably not reversible. The side that would have been facing the charger is the female side, with the male side (the side with the prongs) facing the battery.

If you remove some of that heatshrink there are polarity markings on each xt60

[Tommycat]

Your polarity markings are correct as marked on the connector.

The coupling contains a NTC 2.5D-15, negative temperature coefficient thermistor. Which in this application I believe is being used as a power inrush current limiter.
With your connector issues you may want to consider mounting it internally in the charger as I did. It would go in series with the RED or positive output wire. Being a resistor, it has no polarity. So it can be installed both directions... I jammed each lead into the middle of each of the cut wire ends, stripping off a tad at the ends. And soldering it solid. It's held fairly ridged do to the short wire lengths. But if you carry it around on your bike, you may want to secure it better. Has been working perfectly ever since.





As seen in my build thread...

https://electricbike.com/forum/forum/builds/ebike-building-directions/48457-1st-build-e-bike-rider-magic-pie-v5-rear-bottle-batt-52v-11-5ah-huffy-parkside?p=72413#post72413

Regards,
T.C.

[Foss]

I forked out the extra money for the isis crank set and the arms do not fit the axle/shaft correctly. Three things wrong are, the arms don't go on far enough for the bolt to grab and hold them on, the arms do not go on far enough to align the chainring with the motor freewheel, and when you put both arms on they are just slightly unaligned horizontal. One of the pedals is either higher or lower depending on which you have forward, making them the equivalent of bent one piece cranks. Please inform me on this matter, the whole kit is useless to me at this point. If I can have luna give me a prepaid return label to return the defective arms and get a refund, where do I buy arms that will actually work, or do I have to return the whole isis system and have them just send me the stock one that comes with the kit originally?

[paxtana]

I think we would need pictures or video to see what you are talking about. From the description it sounds more like a bad installation than a defect but without something to look at all I can do is go off your description

[Foss]

I have clearly described the fact that the crank arms will not slide fully on the axle shaft allowing the bolt to thred in. Because they can not even be installed it can not be a "bad installation" on my part, so please do not attempt to insult my intelligence. It looks and "sounds" to be a defect if they are not even able to aline to each other correctly. I am fully aware of way the crank arms are "supposed" to go together, fit and work correctly. I'll have to take pictures when I get back in town if that is what it takes. They will show exactly what I have described, the arms are "slightly" misaligned to each other due to bad machining, the arms will not slide fully on and allow the bolt to be threaded in to hold it on due to bad machining, and because the arms do not go all the way on, the chainring/sprocket does not align with the freewheel on the motor. Thank you for your time, I will send them asap in hopes that you will be able help me move forward with resolving this issue.

[paxtana]

Yikes.

Sounds like you should send back the whole kit and buy elsewhere. I am answering to help you out, if my help is being taken as an insult then I can't help you.

This was sold explicitly as an advanced kit with no support as it says right on the listing, it is not an insult to say that something that always easily fits together might just need a picture to help out so we can get the thing fitted properly. Probably that advice we come up with is just smacking the crank with a rubber mallet so you can get the bolt to thread in, who knows but I would not be surprised if that were the case from the limited info you have provided. Either way the cranks are the easiest part of this install and if you are this bent out of shape so soon then Cyclone is probably not the kit for you.

To proceed with support, if you want to, please email support with the pictures. Though like I said I think you should send it back and either get an easier kit or buy somewhere else. I would be happy to waive any and all restock fees (minus shipping) if the equipment is in original condition. Give it some thought and let me know. Ask to have this escalated to Gary if you want to go that route. Otherwise you probably want to speak with Seb if you need support more on the technical side. We'll need any and all supporting pics relating to any "misalignment", or bolts that can not thread in due to some reason, etc, along with your order# and a brief description. support@lunacycle.com

[Foss]

Wow,

I understand the kit's "level of difficulty" and is "sold explicitly with no support". I apparently have been taken incorrectly. I apologize for not being able to explain the situation. I was just giving the facts I see in front of me. Please, no need to be offended or get rude. Sending back a whole kit because one thing does not fit correctly makes no sense. I have tried giving the isis crank arms a bit of persuasion with a rubber mallet. I didn't want to beat on it too hard and damaged other things, hence why I have asked a forum for advice. I appreciate and will take part of yours. I will gladly take pictures and even make videos if necessary. I will also take the advice and also contact Seb for technical support.

Thank you paxtana for your service

[pure_mahem]

"a picture is worth a thousand words" so you know a couple would do wonders for people to help you out with plausible solutions. Possibly even outside the box solutions.

[Foss]

Thanks

I apologize and regret, had to leave for the weekend and didn't take pictures before coming to the forum. I'll do my best to get pictures to describe the issue better as soon as I get home.

Much appreciated

[americanprospecting]

Hello. Im finally ready to pull the trigger on my bbshd kit from luna. I have a motobecane FB4, which like many other motobecanes, have the flared chainstay issue with mounting the motor. so should i stick with my 100mm (the correct size for my bb) and use spacers? or should i get the 120mm? One last question, i also ordered a nuvinci n171 hub, and was just curious if a 30t mighty mini paired with that hub could help conquer the San Francisco hills. Thanks

[paxtana]

Whether you need 120 depends on how much the chainstay flares out. There's a dimensional diagram on the KB

https://electricbike.com/forum/forum/knowledge-base/motors-and-kits/bbshd/10736-how-to-order-the-right-bbsxx-kit

If it flares out to such an extent that it means you will lose ~20mm or something like that then yes it may be necessary to go 120. Also keep in mind you may need extra spacers.

30T may be usable, sure it would be great on hills. However given that the chainstay issue that's already going to put your chainring pretty far outbound. You may want to go with something that wraps around the secondary reduction housing to at least get the chainline a little better, which would hypothetically be any chainring 42t or higher (46t is stock). Finding the sweet spot for your situation may take some trial and error.