#boosted said:
That was for a different scooter, but regardless its at 75% charge (50.8v) so It shouldn't be cutting out like that right?
If the battery is either poorly balanced or has a problem, it could do it even from "full", if there is enough load on it.
If it only happens when at 75% or below, and not when at full, then that *really* points to a battery issue.
Battery issues (or connection problems, often enough *in* the battery) cause most of the issues that people have with EVs.
If the system will startup without a load on it (offground) but not with a load on it, then almost always it's voltage sag causing it, and that almost always comes from a battery problem.
WHen it isn't, it is connections between the batery and controller, or between controller and motor, that are either loose, damaged, or corroded, causing high enough resistance to drop a lot of voltage across them. But in high-current connections, that kind of resistance means a lot of heat, which usually makes the problem worse rapidly, and often makes it very easy to find from either the smell of heated plastic or metal, or an actual fire. When it's not quite that bad, it is still often visually obvious when examining the wiring harness due to deformed or melted plastics (connector shells, wiring insulation, etc).
But to find out what is actually the problem for your new scooter, you'll need to measure the voltage while riding, under working and non working conditions. At the least, you'll need to see the battery meter at the instant of shutoff, if it's a bar meter that reacts very quickly to changes in voltage (some don't, some do) then you should see the bars drop during the startup from a stop attempt much more than they do when it works.
ONce you report back with this info, then we can branch to checking other things from there.
