I wouldn't worry about selling someone a defective, dangerous board. It's only the footpad that is defective, and that is a $150 fix. They have been known to malfunction due to water damage, so if you have ridden exclusively on the beach, that is the likely cause. It doesn't have to have been submerged, Onewheels are often not very water resistant at all. It doesn't help that Future Motion has often posted videos of people riding in conditions that void the warranty. While it is fun to ride on the beach, salt water and electronics do not mix.

The heel lift is also key. Don't step off until the motor has disengaged.

It doesn't know you are nosediving until you are nosediving. It can be mostly fine (maybe you already ignored pushback) until you hit a bump or bit of resistance that suddenly shifts your weight forward too much for it to catch up with the little power remaining. It can sound an alarm at that point, but you will already be in the air.

Pushback happens early because it needs to have enough power to accelerate enough to lift the nose while also maintaining balance. That is your nosedive warning. After pushback, it cannot guarantee it will have enough power to keep you balanced in all conditions. Surging is a way to tell you to back off while it still has enough power to keep up with aggressive riding.

Requests for a nosedive warning sound like "Why hasn't FM implemented a warning to tell me when I am about to nosedive after I have ignored the other warnings?" If you had a nosedive and never felt pushback, then you need to work on riding in a way that keeps your head and shoulders centered over the wheel and not leaning out over the nose.

Not a "never before seen issue". Mine did the same thing after 4 days. I took it off the charger, and it would only stay on if it started up with an error like wrong orientation or contact with footpads. There were two cells out of balance, which may have caused a safety shutdown of some kind.

I didn't have it back for very long before cells started going out of balance again, to the point where one keeps going up until it triggers an overcharge error.

@andersen142 Black Friday discounts are usually free shipping.

There have been a couple of polls on the Facebook groups. The price of the Onewheel pushes the age upwards. The top of the bell curve is typically mid 30s to mid 40s.

@ylte That was one of the pictures. Looks like that only applies to the DC output, if you use the cigarette lighter plug you only get 180w.

@ylte Max power output is 180w which isn't enough for the Ultracharger. You need 350-500w output. The capacity is good, just not enough power.

@sippin Whatever marketing person offered express shipping as part of the deal must not have known that you can't ship an XR on a plane due to the battery. They probably have some kind of special approval for overseas shipping, but it might not apply for domestic.

I was about to run an errand, app said I had 30% which is enough. I checked the cells and saw 2.9-3.0 which meant I would have had to carry groceries and my OW back home.

@hoovdini It might hold up with more layers of fiberglass or CF underneath. That would be the real fender in effect, with the printed translucent PETG being cosmetic.

TPU would make a good fender, but it would be have to be fairly thick to maintain enough rigidity to stay put while the upper layers are printed.