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  1. S

    Repairing Ping 60V BMS

    OK will ship tomorrow, good luck!
  2. S

    Repairing Ping 60V BMS

    The 3- 60V bms' have the 'light-on' problem in the same location on the board (approx. in middle) although one of those has a couple of condensors (or capacitors?) missing as a friend tried unsuccessfully to repair one. The 72V board has 1 or 2 burned out mosfets I don't remember, it's been a...
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    Repairing Ping 60V BMS

    The pack originally came with humungous andersons joining the 2 halves. I think Ping does that so riders can separate the halves and mount them on both sides of a rear rack . That's why the thin wires joining the battery and bms are soooo long and inconvenient for someone who keeps the 2 halves...
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    Repairing Ping 60V BMS

    It's the light corresponding to the last cell where the lead connects to the other half of the battery. I think that a poor anderson connection (which joins the 2 battery halves) has damaged that component on the bms. If I remember correctly the corresponding cell charged up properly but didn't...
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    Repairing Ping 60V BMS

    No, I can't mount them on the battery without a lot of trouble. If one of cells stays lit all the time it must be something wrong with the tiny gizmos on that corresponding cell and replacing that gizmo with a good one from the extra bms' should correct the problem. Ping said to use a meter to...
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    Repairing Ping 60V BMS

    The battery is working fine with a new bms. According to Ping a capacitor is the problem with the 60V bms'. Fixing these bms' is beyond my capabilities. I just want one of the 60V bms'fixed to keep as a spare. Since there are 3- 60V bms' some capable individual can repair 2 of them with parts...
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    Repairing Ping 60V BMS

    I will consider your offer but I'd prefer to stay within N. America
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    Repairing Ping 60V BMS

    I have 3- 60V and 1- 72VPing BMS' all not-working properly. I think the 60V's - one light stays on all the time and the 72V may be the mosfet. I would like to have 1 60V repaired if there is somebody out there interested in exchange for the other BMS' and/or cash. I live in the Toronto area.
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    em3ev best kit for speed

    Dogman, maybe you are hinting that I might not be pleased with the performance of geared motors however I live in a built-up area and there will not be any long stretches to heat up the motor. But there is some stop-n-go. I read somewhere that geared motors are better at handling that. But i...
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    em3ev best kit for speed

    BTW, about 4 yrs ago I put together a 408 with 20amp controller and 72V SLA. I could have gone 36 or 48V battery no bms required. Nowadays with lifepo4 and lipo it seems that batteries come in a variety of voltages like 50 or 52 and their corresponding chargers and bms'. Therefore going from...
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    em3ev best kit for speed

    In this thread it sounds like some people are getting that 35 mph on Macs (8T or 6T , maybe 7T is a good compromise) using 48V and probably 35 amp controller. It's pretty tempting to go this route as you can use a smaller and lighter battery and possibly increase the Ahr rating for greater...
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    em3ev best kit for speed

    de-magnetize? how did you test for that? how old is your mac bike? My 408 (not the 406) motor is 4 yrs old and has lots of power still even though it's been thoroughly abused - rain, snow, cold, dirt. I t started off with 72V SLA. With only a 20 amp controller it still had plenty of guts.
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    em3ev best kit for speed

    Lot of great suggestions . I have enough to make a good decision. I never realized it takes 50% more power to get that extra 3 mph speed and then worries over excess heat. Still thinking mac for it's weight, size and stealth. Not sure whether to go 48V or 60V, maybe (just maybe) lower my...
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    em3ev best kit for speed

    Neptronix: I think you misread something, I'm getting 32 mph on a 406 crystalyte with 60V 15amp ping and 20 amp controller. Just something I threw together with leftover parts and a good deal on the 406. I will probably not be using any of those components on my new build with the mac 500-1000...
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    em3ev best kit for speed

    When you say max distance is 10 miles (at 35 mph) which motor and other components are you suggesting? As far as wheel size is concerned I already have a strong dual supension Mtn bike lined up.
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    em3ev best kit for speed

    The ping is 15amps. As far as the Justin's simulator is considered, it's too complicated for me. Why is it when you decrease the speed the motor gets hotter? and range can vary to infinity? Sorry above my head. Oh, and for 10 miles max distance, that's ok with me
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    Need small onboard Voltmeter

    Again thanks a lot. I did order 2 of Wes' recommended meter. And dogman I find the search engine is of poor quality - probably a subject for a new thread.
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    em3ev best kit for speed

    Hi, I am pondering a mac 500-1000W kit plus battery from Paul's new web site em3ev.com/ . Approx 35 mph sustainable speed is my goal but I am not sure which controller or battery or motor combination works best when efficiency is considered as a factor. I would consider 60V if it's neccessary...
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    Need small onboard Voltmeter

    Thank you . Great suggestions. It seems that once you start adding amps as one of the functions the meter gets bigger and more complicated to install, though it would be nice to have that function.
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    Need small onboard Voltmeter

    Hello Is there anybody who can point me to a small, neat voltmeter that I can attatch to handlebars? Something cheaper and smaller than the cycle analyst. It would be used for monitoring the remaining juice so I don't get stuck in the hinterlands.
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    Equivalent Lipo replacement for 60v 15Ah Ping

    thank wesnsell and dogman for the advise, however ping sent me a 72v instead ofthe required 60v bms threrfor the deteming the health of the batterywill be put on hold until new newboard arrives. pain in the neck,
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    Equivalent Lipo replacement for 60v 15Ah Ping

    According to dogman , Isn't 20s lipo actually 4.2 x 20 = 84v? That is probably too high for my 20amp 72v controller. I think 18s is what I need if there is such an animal. Does anybody know if larger lipo cells are available both in voltage and amperage? I personally don't like using tons of...
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    Equivalent Lipo replacement for 60v 15Ah Ping

    So 20s lipo is the 60v ping equivalent but 18s is more convenient? I need more range than what I'm getting with my ping, maybe 12 of those packs would fit the bill. Would that be 3s4p? that is lots of batteries. Would it make charging more difficult and expensive? I don't have a charger yet, I...
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    Equivalent Lipo replacement for 60v 15Ah Ping

    From reading search results, i found others had the same problem with andersons (or any other connector which disconnects). Apparently if the connector is not pushed all the way in arcing occurrs and it is this arcing that burns out the capacitor corresponding to that particular cell. In my case...
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    Equivalent Lipo replacement for 60v 15Ah Ping

    cwah, I don't know the present capacity of the ping , never measured it (don't know how) but will know after I replace the bms and read up about it . I believe the battery is good but the bms is the problem. I did replace one swollen cell at the end of the split pack but that could have been...
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