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  1. M

    Double bms issue

    Hello, would greatly appreciate help with my circuit that I have in mind. The objective of the circuit is to have two 72v batteries that are connected in series, both of which have a bms on them. Both bms will not be used for discharge and only for charging. Rather for discharge safety I have a...
  2. M

    700+ molicel p26a cells like new $2.9 per cell

    Selling 700 like new only 1 charge cycle molicel p26a cells. They were used for testing on a prototype and no longer needed. For the prototype the wraps were removed, and also have a light spot weld mark on the cells. New wraps were put on after just for safety when shipping. Price is 2.9 per...
  3. M

    Double coil contactor

    Hello question I have is there any double coil dc contactors? Reason for this is because If I have two bms I would like both of them going to one contactor to turn off the main load. Link below is one that I saw which has a set of 4 wires just wasn't sure if that's what I was looking for...
  4. M

    High voltage bms

    Hello anyone have a idea where I can find a compact high voltage bms? Looking for something around 35-40s. And obviously for a ebike battery it needs to be compact. I'm leaning towards something that will use a relay. What I have found is heltec makes one, but doesn't have any Bluetooth to view...
  5. M

    Ktm freeride exc motor/housing/ecu for sale

    Selling power train off of a 2022 freeride, with 13 hours or about 350miles. Serial number is shown, comes with motor, housing and ecu and water pump. Cost is 3299$ located in north jersey cost of shipping not included. Email moeakajuice@yahoo.com
  6. M

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  8. M

    72v charger (45$) (SOLD)

    Selling a good working 72v charger with adjustable switch for 10 - 15 amps. Price is 45$ +shipping
  9. M

    Asi Bac 8000 with credentials

    Selling bac 8000 like new barely used, comes with an additional hall sensor plug. Was previously and currently paired up with a qs 138 motor, and this was bought directly from them so you have direct access to the bac asi app. Asking for 900$. Located in north jersey.
  10. M

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  11. M

    Kweld+accessories

    Anyone have a kweld they are trying to sell? I also need the kweld 3d printed housing as well as the 3d printed electrode holder. Im located in NJ, USA 07504. Depending on the price of the kweld i may or may not be interested but definitely interested in purchasing the 3d printed parts. Thanks
  12. M

    Spot welders

    Quick question since I've been out of the scene for a while now, is the kweld still the best spot welder? Anything new on the market that's better then it? If still k weld where would be the best place to buy it? Thank you
  13. M

    Bms in series

    This might have been touched up on in another thread but hopefully someone can lay it out for me clearly and clear up any confusion. I intended on building a higher voltage battery (40s) and having difficult finding a bms built ready for that. If i found any they are bulky and/or expensive. That...
  14. M

    Asi bac 8000 + qs 138 70h motor sale

    UPDATE MOTOR SOLD ONLY CONTROLLER AVAILABLE For sale qs 138 70h motor with less then 100 miles on it. Motor has scratches on the surface, and also has additional drilled and tapped holes on the outer housing similar to the holes they come with which was used for an additional mount. Comes with...
  15. M

    Denzel d100 vs qs138

    Been looking over two motor options trying to figure out which would best between the denzel d100 and the qs 138 70h. On paper it seems like the denzel motor would be capable of more power, links below what are your thoughts? http://eastgem.net/D100.html...
  16. M

    Tool Platforms

    Just curious regarding the different tool platforms like milwaukee, ego, dewalt, and so on, for some of there bigger tools they allow you to connect two batteries simultaneously for more power/run time. This is understood to be connecting two batteries in parallel however whats a little...
  17. M

    Battery build IR/Capacity range

    Not sure if this question has been asked before, currently having a bulk amount of cells and trying to figure out 2 things. 1. What is the acceptable IR and Capacity range for a single parallel group. Example building a pack and there are 4 cells in parallel, ranging from 2500mah to 2900mah...
  18. M

    Molicel P26A and Samsung 30q cells for sale

    For Sale P26A cells and Samsung 30q cells. Selling 400 Samsung 30q cells that have been through about only 30 cycles. They were glued together so when disassembling the insulation tore and had to be changed with new generic ones. There is a mark on the positive and negative side from removing...
  19. M

    Electric Motoped For Sale

    Hate to sell one of my most favorite builds, This is my motoped thats been converted to electric. It weighs about 170lbs fully assembled with batteries, and can push over 30kw. This will be sold as a rolling chassis with everything except the batteries, and controller. If you would like to get...
  20. M

    Sequre Spot Welder (SOLD)!!!!

    Sequre spot welder lightly used in original packaging. Additionally comes with wire connector to connect to a car battery (bolt style). This model does not come with the foot pedal. Price does not include shipping. Price $170
  21. M

    Alan From ERT bad business!!

    I would like to inform this forum of my dealing with Alan from ERT. Im going to make this as short as possible. I purchased a asi 8000 from him and a motor, which took several months to arrive. After receiving the motor and controller, i went to get it running for the first time only to find out...
  22. M

    Avoiding spark

    Quick question, i have a 72v battery nominal and the bac8000 controller, when i go to connect the terminal from the battery to the controller theres a spark which is expected. However it causes a bit of a burn on the connector as seen in the image and would like to avoid that. Now its only going...
  23. M

    Sur ron Motor sprocket size

    Hello guys, i currently have a sur ron motor and wanted to install on there a sprocket for a 420 chain, however i need help finding one given the measurements. The diameter of the shaft is 20mm. And then the shaft is also missing what i think is called the key, and that measured to about 16mm as...
  24. M

    709A spot welder

    Hello, having a small problem, wondering if anyone has experience with a similar problem. I have a 709A spot welder, and have .01mm thick nickel strip which i used for my parallel connections, and 0.3mm thick nickel strip which i was going to use for the series connections. The problem is for...
  25. M

    Bypass Bms

    Hey just a quick question about bypassing bms discharge and only using it for charge. This was talked about on a different thread but i just had one question. The diagram below for bypassing the bms shows that you connect the charge positive and negative directly to the battery pack and the only...
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