I think they quoted 48V , (5.9 - 6.4Ah) for a total of 300Whr capacity.
So ignoring my comment, I did ask a question about the battery watts and amperage. Is that information available?
As I understand it, that's exactly correct there is a direct link between the pack size and amps. Of course there is a minimum size to achieve 48v for each chemistry and this may be it. I don't know enough about it. @George S. likely would know.Thanks Lenny, I watched the video twice and still didn't hear that. So the pack can be that small because of the low amperage? Dose the more amps it carry directly affect the size of the battery? I'm not savvy on watts/volts/ and amps. So im trying to understand how they have such a tiny pack, and why others are so stinking large.
The size of that 300wh battery looks great, but I'm also interested in knowing the weight of that pack. It's a great idea, this small pack. Purchase 3 or 4 of them, throw as many as you need in a bag for your expected travel for that day. It's high time someone made a small lightweight pack. So what is the weight of that 300wh pack?Sorry, wasn't ignoring anyone, we got a lot of emails yesterday as you can imagine. The reason we didn't mention the battery specs in the video is because we're still testing out different cells and configurations. Lenny has it right, with the 29E and 32E cells, we can get about 300 watt-hours in our small pack. Our larger pack is about 400wh, and it's still much smaller than every other ebike battery pack out there. Technology is amazing isn't it?
Not that 4-5lbs is heavy for 300wh, but I was hoping that new technology would have batteries a little lighter. Possibly a 36v, 8ah battery at 3lbs, given you can get a 36v-11ah battery at 8+/- pounds. Have you looked into solid state batteries at all? Having one made to the shape you need? You could cover a solid-state lithium Ion battery with carbon fiber and get a very lightweight battery. I realize that would be very cutting edge and expensive right now and I'm not even sure if that's possible for an e-bike, but that's the kind of battery I've been waiting to hear about. Two 5lb batteries in a back pack is not something I want to carry. A rack bag of some sort, maybe.Wow, that's high praise, appreciate your support! The small pack weighs about 4lbs (in the bag), but will be less than 5lbs even with our all-aluminum housing.
We could make a superlight battery in a carbon fiber enclosure, but it would likely cost more than our complete bike.
New battery tech is always coming out, but we're probably 2-5yrs away from the scenario you envision J.R.
What kind of real world range are you hoping for with the proposed battery/motor build? I say real world and I mean a 40 year old, semi-fit 5'10", 180lb. rider with some hills. I'm a semi-fit, 53yo, 6'2" at 190lb, with a lot of hills.