For electrolysis, I do not agree, the performance is more efficient with a high alternating voltage, than with a battery which will lose a lot of amps to compensate, the problem is that with the alternator power is lost from the spark of the candles. If the car was only with hyd ...

All I have to do is wait for the 40A fuses (order) and finish the parts, the wiring is not very far!

I am always on the steel parts, I will keep you informed when I am on wiring, I have not yet found the 40A fuse in the trade, but I know where to find it on the net

Ok, by modifying the control in 2 speed I could restrain the controller not to exceed a certain amperage, then the motor will be less powered and I would necessarily gain in autonomy. (if I succeed )

yes sorry I am always wrong between the two, so in parallel.

18Ah of discharge and in C20 capacity, I had inquired and C20 is the autonomy in hours ...

like I said 18Ah for 20h that's a lot

What is not easy to take? the mountain board? Mine is a prototype, it will weigh heavily considering the steel parts and the batteries, and not at all made for off-roading. For the autonomy of my AGM battery the written discharge is for C20, that is to say that 2X12volt 18Ah (c20) in series fun ...

My multimeter can measure up to 10A I had not seen, well I will see later to find an ammeter clamp for continuous.
For the charger, I found a 3,7A slow charge car battery charger that would do the trick.

Thank you, I will opt for a 40A.
How do you advise me to test the intensity coming out of the two batteries in series while the engine is in use, in series on the +, or at the fuse terminal?
This is the last question I ask myself, and this weekend I'm starting the pieces

I just finished my parts on solidworks, with this software your PC is a god of parts: cheesy:. https://www.econologie.com/fichiers/partager/1220994978sIh57p.jpg https://www.econologie.com/fichiers/partager/1220995016kvOs69.jpg I will print and start the chassis ASAP, e ...

Sure enough, my charger is all rikiki, thanks for the info. So this weekend I was very busy, I still took the time to measure all my parts, to draw them with the one I am going to build at the right dimensions. material: 5mm sheet metal one piece will come to support the whole board ...