Battery options for electric kart

[Upperfoot]

Its an extra layer of connectivity, nothing to be afraid of.

i am not afraid, but it is a extral layer of complications and cost that is simply not needed. there is no need for a matched system to have the bms and charger to talk to eachother in the first place. they dont have anything to say to each other.
if you have different batteries with different voltages it is a great solution. but not for a setup like this.

Its more for voltage, current control and shutting off the charger when charging is complete, if I'm making it idiot proof these are things I need https://www.orionbms.com/charger-integration/interfacing-eltek-chargers/

 

[flippy]

Its more for voltage, current control and shutting off the charger when charging is complete, if I'm making it idiot proof these are things I need https://www.orionbms.com/charger-integration/interfacing-eltek-chargers/

current and voltage is set once on the charger and then you leave it alone, a shutoff is not needed as you need the float charge to balance the battery. canbus based charges usually dont leave the battery floating.
charging happens automagically once set and it cannot be more idot proof then that, adding expensive crap like canbus only removes idot proofness, especially if something does not work and it not needed in the first place.

if you want the best KISS setup you can use 1 or more meanwell HRP series supplies in the right setup.
once you have the right battery setup dialed in you can choose the charger from that series. it only requires the set a simple pot to the right voltage and then you can leave it alone, no canbus crap needed and a lot more universal as a simpler bms dont care about what charger you hook up to the battery as long as its within the right spec.

buying a 1000 bucks worth of bms and probably more for a high power charger is simply insane for this setup. is a utter waste of money.

 

[Upperfoot]

The eltek flatpack is about £200 used for a 3kw supply, a board for it costs £42, I already know how to configure it via CAN with an Ixxat, from the wealth of information out there and the fact I'm a software architect and have programmed Sevcon controllers I am 100% confident it wont be an issue.

The BMS can be swapped for dumb BMS that does the job, I agree, though I'm not wanting to look at this to make concessions, I want it to be the best it can be, with the ability to control it via software in different configurations.

For the first iteration I already have a deligreen 60a bms that I will be using which cost me £40, though that isnt the end goal.

Back to the topic at hand, I'm going to go with Samsung 20S cells which I will be spot welding myself.

 

[ENNOID]

@Upperfoot:

I might have something to offer with my ENNOID-BMS & battery modules, see thread details:
https://endless-sphere.com/forums/viewtopic.php?f=14&t=92952&start=75

 

[Upperfoot]

@Upperfoot:

I might have something to offer with my ENNOID-BMS & battery modules, see thread details:
https://endless-sphere.com/forums/viewtopic.php?f=14&t=92952&start=75

Thanks ENNOID sent you an email :thumb: