Announcement

Collapse
No announcement yet.

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

Collapse
This is a sticky topic.
X
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    Hello guys i have an issue trying to charge my battery using luna 2a charger, not sure how i should reset bms, more details here
    As per the universal sticky related to the Luna 2a slow charger (52) and my homemade 14S pack with BMS for charging input and direct discharge. I've noticed that the charger cuts in and out sporadically during charging. Pack voltage is 55.5v Have not tested the BMS output volts has yet. BMS is switching the charger from charge

    Comment


      Hello,

      Please help me troubleshoot:
      • Took my brand new build for a ride yesterday and things seem to work well, other than every once in awhile (10 to 15 minutes) the display/motor will turn off.
      • It has done it both during hill climbs at high wattage and during descents at zero wattage. It happened 3 times during a 45 minute ride (a steep 12 miles with 2,000 feet of elevation gain)
      • I can turn it right back on and everything functions as it should again.
      • It should be noted that i have the 21h error code and no speed readout. Not sure if this could be related.
      • Another wierd thing I noticed is that two of the times when i started it back up, the pedal assist wouldnt respond until after i throttled a bit.
      • All components are brand new. I got everything from Luna except the battery.
      • I have a 52v 30ah triangle battery. Purchased from Bolton ebikes. Reported to be high quality 18650 cells.
      • Where to start?
      Thanks!

      Everett

      Comment


      • ncmired
        ncmired commented
        Editing a comment
        Unless you've reconfigured the auto-power off in the display's settings, it will auto power off after approx 5 minutes if there's no speed sensor signal (21H error code).

        Did you install the speed sensor and the magnet, line it all up, and does the sensor light blink as the wheel spins?

      Originally posted by ncrkd View Post
      Unless you've reconfigured the auto-power off in the display's settings, it will auto power off after approx 5 minutes if there's no speed sensor signal (21H error code).

      Did you install the speed sensor and the magnet, line it all up, and does the sensor light blink as the wheel spins?
      Thanks for the info. Wasn't aware it needed to detect speed to remain on. The light does not blink when the magent passes it.

      Comment


        Originally posted by emulkeen View Post

        Thanks for the info. Wasn't aware it needed to detect speed to remain on. The light does not blink when the magent passes it.
        Sorry, I should have added, the light should normally be on, and blink off when the magnet swings by. The magnet needs to be real close to (almost hitting) the bullseye marking on the round part/face of the sensor:

        Click image for larger version

Name:	21-2.jpg
Views:	315
Size:	16.5 KB
ID:	104597

        Also, the slotted screw cap on the spoke magnet needs to be facing away from the sensor.

        Comment


          Originally posted by ncrkd View Post

          Sorry, I should have added, the light should normally be on, and blink off when the magnet swings by. The magnet needs to be real close to (almost hitting) the bullseye marking on the round part/face of the sensor:

          Click image for larger version

Name:	21-2.jpg
Views:	315
Size:	16.5 KB
ID:	104597

          Also, the slotted screw cap on the spoke magnet needs to be facing away from the sensor.
          Got it fixed. Had a few rare earth magnets that I added on to get within the required proximity. Its a fat bike so it was quite a distance. So relieved it wasn't some wiring or battery issue. Thanks!

          Comment


            Hello! I bought a 52v 24ah triangle pack and matching advanced charger from you guys maybe a year or so ago. For various reasons I just got the bike wired up a couple of days ago and plugged it in for the first charge yesterday. The advanced charger is charging to 55.7 volts only. That’s what it says on the charger display when the fan goes off. I tested the voltage on the “fully charged’ battery pack with my fluke and it says 55.7. I’ve read through the advanced charger docs and they say that when plugged in with no load the charger will display the max voltage that it will charge to. When I do this it says 55.7, not 58.2. I tried setting the dial to 90% and 80% by unplugging, letting it sit for 10 sec, then changing the setting. When I plugged it in again it still said 55.7. Did I get a bad charger? Sorry for the long delay between buying it and using it for the first time, this build took way longer than I wanted it to. I’ll update my build thread soon with the new pics!

            thanks,

            Gerry


            EDIT: Here are the pics

            Click image for larger version

Name:	IMG_0425.jpeg
Views:	430
Size:	2.35 MB
ID:	104833

            Click image for larger version

Name:	Untitled_Artwork.png
Views:	360
Size:	6.59 MB
ID:	104834
            Last edited by Overkill; 04-27-2020, 05:29 PM.
            Intro, Belt Driven Build

            Comment


            • paxtana
              paxtana commented
              Editing a comment
              First check that the label says it is a 52v charger and not the 48v version. If you're good the pot may need adjusted https://electricbike.com/forum/forum...i-and-advanced

            • Overkill
              Overkill commented
              Editing a comment
              paxtana I read the thread that you linked and popped the top off the charger. I added the two photos to my original post. Yes its a 52V charger, and the pot locations do not match either version in the link you supplied. Additionally the pots seem to be sealed, and the link gives no guidance on setting strategies for the other 2 pots. If one pot was this far off from the factory I'd have to assume the rest are too. I'm going to open a ticket on this.

              Thanks!

            is the DPC-18 newer than the 860c? Will the DPC-18 read correctly a 52v battery?

            Comment


            • paxtana
              paxtana commented
              Editing a comment
              They are both the newest displays on the market (also the 500c) but the 860c is the absolute newest IIRC.

              Yes it reads voltage correctly. The gauge is for 48v though.

            I just finished wiring and charging my battery and the system wont turn on. The red wire for the throttle here isnt giving a reading, so im guessing the throttle or the plug for the throttle is faulty. what do i do, and how do i break in my new battery correctly now that i cant even turn the system on?

            Click image for larger version

Name:	unnamed.jpg
Views:	269
Size:	103.5 KB
ID:	105021

            Comment


            • rune
              rune commented
              Editing a comment
              i confirmed the throttle switch is faulty, i opened up the throttle and replaced the switch with a generic one and that got the throttle to turn on, but then found the controller seems to be faulty also as it is not passing the current now too. Feeling very discouraged with my luna mini cyclone kit as the bottom bracket, throttle, and controller i received were all faulty right out of the box :(
              Last edited by rune; 04-29-2020, 08:49 PM.

            • HIGHVOLTAGE
              HIGHVOLTAGE commented
              Editing a comment
              If you're having trouble with your order, send an email to support@lunacycle.com and they can help you with that for sure. Be sure to include your order # and maybe a video of the problem to help expedite the case a bit.

            The throttle doesn’t turn on the system.
            A bullet connection lead to 52v battery plugs in a switch or key switch lead to red wires on controller turns it on.
            Throttle is low voltage and is even separate from rest of 5v bus.
            There is no “throttle switch” even though this diagram used the term - perhaps you are rewiring the PAS switch or the power switch?
            The power switch is high voltage and also feeds voltage meter on control when turned on if you have voltage display.
            Last edited by FatMarty; 04-30-2020, 01:14 PM. Reason: Explain better and add controller image

            Comment


              Hey guys, any plans to bring back the "52V PANASONIC GA 14 AH PERFORMANCE + LONG RANGE" battery?

              thanks

              Comment


              • paxtana
                paxtana commented
                Editing a comment
                You mean the softpack, or a hardcase, or a wolf?

                Generally speaking we do usually have some form of battery matching that capacity in 52v nominal. If you mean softpack specifically as I think you do, last I checked we do have some in production which probably also has 52v 14ah, not sure if it is GA though, might be MJ1. Both are great cells though.

              Originally posted by melechmet@yahoo.com View Post
              Hey guys, any plans to bring back the "52V PANASONIC GA 14 AH PERFORMANCE + LONG RANGE" battery?

              thanks
              The softpack specifically.

              Comment


              I know some BBS02 have an issue that the throttle does not work when the PAS is engaged. I have a BBS02 on my wife's bike and the throttle works perfectly when not pedaling, however when pedaling the power from the throttle does not kick in until I push it to almost half throttle and at that point it engages abruptly. I have tried every setting in the book. Anyone have an idea? As I said without pedaling it works perfectly. To make it worse my wife swears it worked fine with an older programming I had. However I looked at the programming and it is almost identical.
              https://www.dropbox.com/s/j6379gslxvgdk ... 01.el?dl=0
              that is a link to the current programming
              Top
              Post Reply

              1 post • Page 1 of 1

              Comment


              • AZguy
                AZguy commented
                Editing a comment
                I think you misunderstand


                I'm pretty sure I mentioned I pedal *ALL* the time and never ride it like an electric moto (i.e. not pedaling, just throttle)... I have no interest in riding it that way and it seems you don't either and I understood that right of the bat

                In the mode I pointed you too I still pedal *ALL* the time and just use the throttle to control how much power is delivered instead of adjusting the assist level but not riding it like an electric moto since that isn't how I ride


                Your choices:

                A. Suck it up and leave it as it is which for folks like you and I that aren't looking for an electric moto and pedal all the time the throttle is pretty much useless

                B. Set it up the way the thread suggests and then pedal all the time but use the throttle to control the amount of assist, however you will have to use the throttle to control the power since the PAS levels no longer function

                C. Do a non-trivial electrical mod to make it work like we both want


                After running with "A." for a year or so and then discovering "B.", personally, I vastly proffered "B." over "A."... but I sure would prefer to be able to use it like this and also have the option of using the buttons to utilize the PAS and give my wrist a rest when cruising.. so in the end I ended up with "C." and couldn't be happier


                If you don't like options B and C.... suck it up and get over it... but those are your options short of getting a new motor or whatever...

              • Cavi
                Cavi commented
                Editing a comment
                AZ, sorry, I did not mean to come off wrong, I am just irritated with this as all the research shows that this only happened after Bfang changed their design. Either way I am going to dig in to the controller. I might buy another controller and use it as the guinea pig as my wife will kill me if I make her bike any worse. If I use another controller I can at least go back to stock if it does not turn out well......... if it was my bike I would just dig in, but not on hers. As it stands she can ride it as it is, but she will constantly complain, so my ride that should be relaxing becomes a source of irritation. If I goof up the current controller and the new one does not work like the current one I am in trouble.....

              • AZguy
                AZguy commented
                Editing a comment
                No offense taken or meant... the "feature" annoyed plenty of folks...

                You might try the option I pointed to... what's the worst than can happen? You all don't like it and switch back... OTOH you might find it works for you as it can be used quite well as a throttle controlled pedal assist [or it also works as throttle only, but we don't care]... You don't really know until you try it...

              Hi, I have a BBSHD and the red wire on the brake cutout, where the wire goes into the brake from the pigtail, is broken. The rubber boot that protects it won’t stay on. I have caliper brake shoe style brakes. Is the wire needed and can it be repaired or is it easier to replace the brake lever? Would silicone sealant be okay to reattach the protective boot? Thanks!

              Comment


              • paxtana
                paxtana commented
                Editing a comment
                Do you mean the higo connector on the ebrake lever itself? Sorry maybe I am not understanding, but it is almost certainly going to be easiest just to replace the part, whether that is on the brake itself or on the harness.

              • Lakejumper
                Lakejumper commented
                Editing a comment
                It’s broken where the wire harness enters the brake housing. In other words, where the wire comes out of the brake lever housing. It appears to have broken from flexing.
                Last edited by Lakejumper; 05-03-2020, 02:58 PM.

              • paxtana
                paxtana commented
                Editing a comment
                Ah, yeah I would replace it. Unless it is just that boot that's loose and you want to try a bit of epoxy and reinforcing with heatshrink after the epoxy dries. Seems like a lot of work to fix a $13 part though.

              Hello, I am new here. Trying to post in the right place....I have 2 mountain bikes with a bafang g510, they only have a 150 miles on them...the thumb throttle stopped working but the cadence works fine. I tried the control and thumb throttle from the malfunctioning bike on the functional bike and the throttle and controller worked perfectly. I dont have schematic to pin it out but I did look at the connections etc and I didnt see anything wrong. Please assist if possible thanks!!

              Comment


              • paxtana
                paxtana commented
                Editing a comment
                Probably the controller

              I also just noticed that the speedometer isn’t reading it stays at zero...??? This can’t be good....

              Comment


              • HIGHVOLTAGE
                HIGHVOLTAGE commented
                Editing a comment
                Ah, This thread is mainly for LunaCycle products unfortunately. I would contact the original manufacture or seller and tell them you're having this issue. They should be able to help you from there.
            Working...
            X