Initial test. Just used the Chafon dc out (without the AC adapter - hooked two of the DC outs in parallel to get the amperage up) with an upconverter to get to 58.4 volts, i.e., not using the AC charger. It worked. I charged from 67% to 80% in 11 minutes. Chafon still reads 100%.

Since this is one conversion rather than two, it should be more efficient.
Chafon with stock adapter: 12 DC > 110 AC > 58.4 DC (2 conversions)
Chafon with DC up converter = 12V DC > 58.4 DC (1 conversion)

I have pics of all of the above. Will post more after more tests, but this looks good. I really think making a battery with higher voltage and upconverting DC to DC will give the best range for the lowest weight.

Edit: I don't think the Chafon has enough Amperage for this and the parallel connection didn't take. I think I need a better battery.

Question: Connecting 16 of 3.6V batteries in series gets 57.6V. Is this a possible solution so you don't need a converter? I wonder how many amp hours would be sufficient for a charge.

Ex:

http://www.batteryjunction.com/batteries-voltage-3v7.html

Edit: by my calculations a 3000 mA battery would give 171 Wh so you could get a full charge with it. It would be more efficient because with the step up converter from 14V to 58V, you lose 10 to 15% or so efficiency with the heat lost in conversion and cooling fan. If you attach another 16 batteries in parallel that gives 341 Wh. That would give 2.5 charges in theory. Also since it is the same specs, you may (?) be able to use the Onewheel charger to also charge the spare battery pack. This way you are spending all of your money on batteries and not on a up converters or chargers.

The two questions I have is is a battery of that voltage dangerous and would the small voltage difference 57.6 v 58.4 I've been reading and the batteries are key. Alot of these are Chinese rip offs that overstate the mAh.

@silvs yes! And at $130,000 it's a steal. Adding the trailer hitch to the Onewheel was a bit tricky.

This might work. ;)

https://www.amazon.com/Solar-Powered-Generator-Kilowatts-Trailer/dp/B01MDM8Q0J/ref=sr_1_1?s=hi&ie=UTF8&qid=1498588175&sr=1-1&keywords=generator

Pure bliss. Just had one Sunday. Don't really recommend it tho. 😉

Shipping confirmation for order 986* today. They are cranking them out now!

@lucasam41 I read there were 883* shipping - one on FB and one on the boards here.

Looking like June for 986X. Boosted Board coming next week. Dang. Looking forward to the OW+. Can't wait to compare the two. I love the offroad capability of the OW tho.

@groovyruvy I second this. I bet the number or emails/phone calls they receive has been declining.

@SeattleCommuter