Alex wrote:Will the battery be quick changeable? So you could simply have a spare in your backpack and switch it when its flat.
It's possible, but I think the battery (despite being LiFePo4) will be around 20kg/44lbs in the high end model, so carrying it might not be an option.
Alex wrote: Im guessing you're using a type of Lithium polymer pack so the weight should only be a few kilos max i would think.
See above ... it's an engineering issue, but basically to drive 2 x 1kw motors (the working design for the high end version) you need a lot of battery to get any distance out of it.
Alex wrote: The range you gave is pretty awesome but for people who are going to want to go for afew rounds you dont really want to have to wait for it to charge, which if you value the life of your battery (especially when id guess at 150-200 bucks US for a new one) you dont really want to try and do that in 20 mins.
Nope, the batteries will be a lot more ... they are around 50-70% of the cost of the vehicle. We don't love it either, but it's the way it is. Rapid charging is one option and there is a stack of pretty wild battery technology coming down the line but not quite there. Look at this
http://www.gizmag.com/silicon-nanotubes/12947/ for a bit of view of what's coming. Ten times the charge is a massive game changer. There are other technologies around also, but for now we need to make do with LiFePo4 batteries which are stable and as dense as we can get.
Alex wrote: I had a decent look around the forum but didnt see any mention of this which is the main issue with anything battery operated so just wanted to check what you guys had in the works, as being able to just do a 30 sec 'swap n go' would definitely be an appealing feature.
Definitely the plan to be able to swap and go, but the price and weight is something we all need to deal with as it's the best battery technology there is, with the most efficient electric motors we can buy designed by world class engineers. It's going to be as good as we can get it based on available technology. We will always have our eyes on new technology as it hits and release as we are able to improve run-time.
You will not be disappointed by what we've been able to do with the existing technology!
Cheers,
The Scarpar Team