OK. The price is right as soldering is a royal pain in the ass.
However when I plug them in will I get the correct, or the reverse polarity ? The positive bullet plug coming FROM the packs needs to be a male bullet plug because I have five or six controllers which already have female positive bullet plugs soldered on them.
As long as that is correct then it would be a great idea and I will order them. I have already burnt out more than one variable controller and is why I took the time to solder them all so when I am tired or a little drunk it is physically impossible to hook them up backwards.
When soldering the motor wires from the controllers I simply use two female bullets on the controller side and males from the motor to the controller. I do this and put blue tape on positive and yellow on negative. The reason why is simple. Most times I use the same motor on different bikes when doing rebuilds like the one I will be working on soon so if I turn the motor around the other way I do not have to re- solder the plugs just put new tape over the connectors.
Thanks and please let me know if the polarity will be right on those. thanks.
OK I just ordered the right ones. Thanks DA. That saved me a lot of hassle soldering. I am lucky I had enough $$$ on the card. I will still need to solder bullets to the charger when it shows up. Eventually I will want a better charger if I order more of these packs. I wish there was a 48 volt pack with BMS also for a good price.
I looked for a 48 volt pack similar to these 36 volt packs but did not see it. I need to do something in my spare time anyway so why not build a 48 volt pack out of those type of cells. Please post the best deal possible. If I go with the larger LIFEPO4 cells and build 6S packs which can be run in series I could build two large packs 24 cells each (4 rows of six) and charge them with my LiPo charger which will charge 6 cell LIFEPO4. Not sure on capacity but should be able to get a deal on larger cells at least 4 Ah per cell, the 3.2 volt cells.
When I get the $$$ I can order maybe 2 or 3 boxes and with four rows of six in series parallel maybe wont need a BMS but I could still get one I guess if it is absolutely necessary.
Below it shows that my 200 watt Skycharger will charge either 3.7 volt cells or 3.2 or 3.3 volt LIFEPO4 cells. In fact the Mega charger Dan sent me is 400 watts and may do all the battery cell types also.
It really does not make any sense for me to not invest in the larger LIFEPO4 cells. With a 400 watt charger I can build 2 - 36 cell 19 volt packs and run them in series. I can also build three and run them in series for 59 volts. These packs would be for 50 miles or more.
However for the dual motor build it would be better to run the 18650 - 3.7 volt cells as fully charged to 4.2 volts and 48 cells total (two 6S packs four rows of 6 cells in series) Even with sag voltage should remain stable for several miles at 4V or higher per cell.
If I have to wire a BMS then I guess I will have to but it really makes absolutely no sense to NOT build packs that I can easily charge with either 6S Lipo charger. The only reason I bought the 36 volt packs was the price and I can run all my bikes at 36V but I can also run two of my bikes at 24 volts and all my bikes will run off 6S packs LiPo, Lion or LIFEPO4.
Please let me know or post a link for each (3.2V and 3.7V) I am looking for minimum 20 a bok up to 100 or more. I will look now but do not want to buy garbage cells. Thanks.
I build e bikes. There not always pretty or practical but sometimes they work, at least for awhile. Immortality is not a dream but the future of our evolution. We were given the tools to forge our own destiny. We were created in gods image and shall evolve to live forever.