Need help with finding a 95 cell BMS

[Lee Malo]

Sorry guys for the NOOB question . I am getting confused with stand alone BMS companies. I have a Smart ED battery and I am ripping the factory BMS out. I have checked for dead cells and I found them all good so i am going to use it in my project . What companies are good to buy from ? I am looking for balancing and monitoring I think .

Thank you in advance

[johu]

Hi Lee,

I can offer you this: https://www.openinverter.org/forum/view ... ?f=13&t=60
It is still under test, not quite a finished product. It can certainly do monitoring and balancing.

[Permag]

Orion BMS has everything you need to build a safe and tunable BMS system. It has 2 CAN buses, displays data through the Torque App. It has many programmable Inputs and outputs and most importantly contactor control, j1772 compatibility and GROUND FAULT detection, which will unlatch contactors and/or set error codes to keep passengers safe. Ground fault detection is a very serious thing when building electric cars. It takes less than .002mA at 400V to cause muscle contraction "latch on" and defib (death). I use Orion BMS and nothing else, because they are the only ones who provide the entirety of saftey protocols and product support.

[Permag]

And Lee. There is so much more than (dead/not dead) battery cells. Ideally all cells in a used pack shouldn't be more than .050-.100mV difference between highest and lowest cells. A good bms will keep them within a desired range which is usually less than .015mV. If you have a resting pack with wildy varying voltages, I would suspect it is damaged.