Hi, I bought the LG INR21700-M50L (M50LT) 4930mAh, for the motor in question, some say that they have 14.4 A is not enough but I did several calculations I will not have to travel at 6000W always in your experience a 12s 10p pack has a good autonomy? Does it heat up a lot?
12S10P will be fine, you might have peaks of 100A+ when starting or going for a topspeed, which is battery current, so you are good. While cruising most poeple use between 1000-2000W, which is like 20A battery current (average).
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Do you have any advice on the construction? I’m using 0.20 nickel for the S and parallel, while I was advised to also use some 1mm copper sandwiching the negative and positive terminals. I’m worried about overheating.
Depends on how you lay it out, if you cover all connections with 0.2 nickel you should be fine, for the main terminals you can strip a longer piece of wire and solder it to the nickel over a long side.
Perfect, thanks. I’ll make a classic 12s 10p rectangular arrangement. I don’t have much experience with spot welding. Do you have any other suggestions? To best dissipate heat since it will be closed and hermetic? 8awg cable.
Just note that 0.2mm nickel can be challenging or impossible to spot weld with cheaper spot welders. If the welder is too weak you end up with weak spot welds that come right off the cell or no weld at all. Kweld is one of the popular choices, but I know there are others.
One of the biggest dangers is accidentally shorting the pack while you are welding, so cover the cells except for the row you work on!
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Hi, I do not see an issue. I use this in a 6p pack - no issues at all, no significant heating of the pack.
Typically I pull around 80A when starting (for some seconds), less than 20A when on foil; so even a 4 or 5p pack should be ok.
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Well, thanks for the advice, I’ll be careful, in fact. After several searches and reviews on YouTube, I spent a little over 110 euros. I bought a well-known welder, the Awithz UKF10, which seems to weld quite well, and for 0.20 nickel, I shouldn’t have any problems. You know it.
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