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Hi, I am Ken which runs a one man company rental and sales business with Leisure EV's like low speed shuttle busses. I have always been fascinated with Strong , Light weight Power packs, due to the heavy weights , slow charging and thereby limited energy of the Lead Acid / Gel battery packs we...

Guys, .. Let me first say Thank You ... for replies which give me value, as its very rare in these times people know what they talk about. About your STOP .. dont worry ... I am here at the forum to discuss and learn before i will Act. Based on your reactions I would like to add following info...

Thanks ! I agree with you on the numbers of cells . About the voltage drop I dont have any experience yet with lifepo4 , thought they are very stable at their voltage even pull 200 amps out them they dont drop like my Gel battery voltage . At my Gel batteries if fully charged 6.5 v x 12 : 78...

Hi Steve, Appreciate your reply and like to discuss more based on the new amp drawing info i gave. Did you check the BMS I showed you on the pic as that BMS is more suitable they told me for Low speed vehicles and comes with a automatic shut too if too much amps drawed to shut it off. Ken

Some info on the 7.5 kw Ac engine attached for your info . The toyota controller is 330 or 440 I am not sure .. but not 550 type. And these are the max AC amps it can handle I assume ? Ken

Steve, Awesome that you react and I am ‘feeling’ you. You are same like me passionate in this field which I appreciate a lot. I will do some research now on possible BMS systems with relays which sound the most safe. The regenerative function of braking I can possibly shut of .. so it won’t...