Three batteries.. two vesc. Need help

[mrhandy65]

Joe, I got it into an accident with Kaaba. Now that I'm sitting around waiting for parts, I'm thinking about alternate configurations and looking for some suggestions on how to make this work. So the battery that I've been using is a 28 amp hour 67 volt made up of a 16s8p ... And the cells that are being used are I'm pretty sure. Mh1 LG .... Secondarily, I have two batteries that are 13s 3p... However, these are 21,7 00 Samsung 50e sells.. so I have two of these batteries and 28 amp hour 67 fvolt. And secondarily these are to power dual 75100vesc.. I'm looking for any recommendations. Also for additional information these are on Kaaba a wolf warrior x pro.. I was thinking of putting the 2 13s in series... But that seems like too much current and I'm wondering is it okay to put them in parallel and have a 30 amp hour 48 v and a 20 amp hour 67 volt. And have one run the rear tire one run the front? Is that okay

 

[scianiac]

Well you can't put those in series as that will be too much voltage for what I assume is a flipsky 75100 as referenced in your other thread. Weather you can use a different voltage for each VESC I'm not sure, in theory they are only connected via the communication ports so you could but it's been awhile since I took my 75100 apart so I don't recall how it's wired inside, you would need to take it apart and make sure the positive buses are not connected. Checking with a multimeter might work but better to do both. Honestly if you don't understand what you are doing I would not as connecting batteries with two different voltages will do very bad things.

Function wise since I assume the motors are identical it would really be better to have both batteries the same voltage since the higher voltage battery can drive the motor faster than the lower one which could cause some issues.