ElectricMotorcycleForum.com

OK, good to know.

So, I really don't know what I'm doing here... so I took the liberty to draw up the battery pouches just to get a rough idea how much volume they are going to take up. So far it's looking pretty good size wise. Maybe I could add even more pouches depending on my size constraints.

I'm guessing that in order to get to a 96v pack, I'd need 30 cells @ 3.2v each, right?

Each pouch cell consists of 23500mAh (and takes up roughly 9 inches x 5-3/8 inches, and not even 1/2 inch thick)

So this when all connected however they are supposed to be connected, it should be 705 amps, right? According to some online calculator I should be at 67.68kW

How far can I go on all that juice?

Motrac rebrands the Honda Grom. The Grom is made in Thailand.

Anyway, here's the eGrom

http://www.motracmotorcycles.com/Special/motrac-em5.php

Ok, I still need to understand the different motor wattage and what they will give me.

If I went with an 8kw motor, that could theoretically give me a higher top speed? But will it still drain my battery packs faster if was running within 50% of the motors peak capacity? Let's say that it was capable of 100mph, but I run typically 50 and under. It's that only drawing half of what is asking for and therefore more efficient to over build?

And what's the deal with 72v, 84v, and 96v options?

The grom is for now, and for fun. Just learning the quirks of EV at this point. The dual sport project would be my magnum opus. Right now, I've got slated a 3 cylinder diesel for that, unless I can really get into battery power.

Anyway, the specs I gave above are really all that is available until the bike arrives. 2000w hub motor, at 72 v, and the batteries are 20ah sla.

But I'm not interested in what it comes with, I'm interested in all the optional EV upgrades that are available on the aftermarket, and import EV suppliers.

The stock wheel is 12 inches, but I'll probably elect to go with a 14 inch. That also bumps me into the 8000w hub motor territory. If that's important. But I like options.

I've had a lifepo4 pouch cell made for me before to a specific size by some battery manufacture called ping or something like that. I'd have to pull up old emails. Anyway, they came highly recommended, and I was impressed with your work and ability to work within my constraints. I've since passed of those batteries to my client, for their project. My only involvement was to procure them, I didn't engineer that part of the project.

Which brings me here... Questions about 72, 84 and 96 volts,  and wattage of hub motors.

As for top speed, I don't care. Quite frankly, going over 80 on 12 or 13 inch wheels isn't something I'm going to be doing. I figure this eGrom project can just be my daily commuter. I've got a Triumph Tiger if I want to go further and faster.

But my main concern is distance on a charge. Because, I've got nowhere to charge in my condo. So I would only be able to charge at the shop. Plus all the errands and running I do throughout the day. I'd prefer 300 miles, because that's what I can get on my tiger, and it's predictable when I'll need to fill up.

I feel that's a main hurdle with the general public's perception about EV in general. Can I go about my daily routine without having to worry about when I need to plug it in again.

So in  a nutshell, 300 miles, no faster than 60 around town. (Realistically, 45-50)

Hello,

This seems like the right place to ask about EV motorcycles and scooters. I've tried at other EV sites, and get ignored, or berated for not searching or being in over my head. But my main interest is motorcycles, dual sport in particular. I've got this crazy idea about building a legit EV Dual Sport with insane range.

Anyway, I'm a designer and inventor and I have a design studio and fabrication shop. So, I can conceivably handle any build, but would probably get stuck when it comes to electronics. But I plan to take baby steps into the world of EV, so I can actually enjoy the hobby and save the planet at the same time.