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  1. E

    3 Speed Throttle issue

    3rd Speed is slower than the 1st and the 2nd speed seems to make no difference at all. I know first speed is working because I can customize first gear on the bluetooth app for my controller. The app does not offer adjustments for the other 2 speeds only the first. Other people who have...
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    No Throttle response on Egrom when Overvolt

    So without a doubt it is the controller for anyone who wonders here with the same problem. Also the 3 speed is actually 2 speed and speed 1 and 3 were reversed. So anyone who comes here who needs a little more info here is a copy of my post on a different forum: Good news! After several days...
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    No Throttle response on Egrom when Overvolt

    I was thinking of removing the fuse as it is not present on the older models and just seems to be an extra layer of protection that isnt really necessary. If anything I would install a larger one but I dont know what type of fuse it is I just figured from experience thats what it is.
  4. E

    No Throttle response on Egrom when Overvolt

    There is a 40amp fuse on one of the wires in the series as seen in my ealier posts. Im no electrician (obviously) but my new controller has a 50a minimum should I remove the 40a fuse?
  5. E

    No Throttle response on Egrom when Overvolt

    Thats good information thank you. At this point I believe Ive confirmed that newer models of this bike have the new generation of YuyangKing controllers which now include ovee volt protection by default. I have bought a new YuyangKing controller with higher voltage input 40-144v and the manual...
  6. E

    No Throttle response on Egrom when Overvolt

    So I went to Walmart and bought an individual battery charger. The voltage before charging was 12.7 and after a few hours I took the battery off the charger and after resting a minute or so the voltage was 13.9 (14.3 fresh off the charger). The first image is the battery in series with no...
  7. E

    No Throttle response on Egrom when Overvolt

    I read that the voltage could determine the state of charge and the voltage on these batteries is roughly 12.74v. Does that change what you suggested trying to charge individually? Also earlier today I attempted running just one additional battery which would be the one added to the end of the...
  8. E

    No Throttle response on Egrom when Overvolt

    Well I know without a doubt this time the batteries are 100% in series but I get no throttle response, lights, brakes, speedometer comes on the only strange thing is the speedometer shows 6-8mph when the bike is not in motion. Out of curisity I flip the breaker while holding the throttle and for...
  9. E

    No Throttle response on Egrom when Overvolt

    Are they wrong? I thought the positive lead on one end of the series is the begining and the negative lead on the other side of the series is the end. The white box (battery) furthest away being added to what one end would become "1" and the box closest taking the place of the battery with the...
  10. E

    No Throttle response on Egrom when Overvolt

    Sorry the website flipped the image the whole image is the bottom of the bike. The drawn white bo es represent the placement of the new batteries. The power inverter has to be upgraded in order to use a more powerful charger to charge the additional batteries otherwise the new batteries need to...
  11. E

    No Throttle response on Egrom when Overvolt

    I think by making this diagram for you I know what I may have done wrong. The 8th battery instead of adding it to the series like I did in the picture I attempted to add in series as then 7th battery instead which I made three wires for instead of only having to create only two new wires like in...
  12. E

    No Throttle response on Egrom when Overvolt

    When overvolting in general what are some reasons that the throttle may not respond? I plan on trying again soon. Another thing is I extended a wire by connecting but ends with a connector could the coupling be an issue? I read its best to do a straight wire.
  13. E

    No Throttle response on Egrom when Overvolt

    I recently got my Boom Grom and I added an additional 2 batteries to the series to overvolt the bike as others have done on previous models. The bike turns on, all lights and brakes work but the throttle does not respond. The speedometer which has a built in voltmeter shows the proper voltage...
  14. E

    Can you use 72v Charger to charge 96v of sla?

    Lol yea I should have lead with that Im sorry. Thank younfor all your help and to everyone else who replied. :bigthumb:
  15. E

    Can you use 72v Charger to charge 96v of sla?

    Oh no thats not what I mean. The stock set up is 72v I want to add 2 batteries to make it 96v based on recommendations for overvolting the stick parts can handle that much before needing an upgrade on parts. You mentioned the charger is likely outputting a max of 84v. I was wondering if that is...
  16. E

    Can you use 72v Charger to charge 96v of sla?

    If its max output is 84v can I get away with just adding 1 battery to the series using stock charger? The bike in question is the Boom E Vader aka Egrom
  17. E

    Can you use 72v Charger to charge 96v of sla?

    In other electronics going lower is usually safe (just sower orbtrickle charge) but over is often detrimental but ebikes are new to me. Can I use a temprarily a 72v charger to chathe 96v of sla?
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