I've been lurking for a while until I felt like I had something to contribute. Now I do! :) I've been riding motorbikes for years and I've had many bikes between 50cc and 1000cc. I did the math and figured 3000w would be around 5hp so I wasn't expecting it to be fast or even quick. I was right. BUT... it does run well, and it keeps up with normal traffic just fine. When you read things like "top speed is 55mph" make sure they tell you how many days it takes to get to the top speed. :)
Last Thursday I took delivery of a new red eFun-D 60V 3000w VSLA scooter. It is a Chinese "prototype" so there is no documentation, PDI, or parts network in the US. Yes, I'm taking a big chance with this bike but the dealer I got it from has been very helpful and willing to help every step along the way. Nothing has a brand name on it except the batteries and they are 50aH BB batteries.
First impressions, I LOVE THIS BIKE!! It's totally silent and happily passes all gas stations! :) I got it up to 47mph in 20 degree weather and only slowed down because of traffic in front of me. It may hit 50+ when the weather warms up. I've driven it to work three days this week so far (30 miles/day) and it's proving to perfect for my commute. There are lots of rolling hills and turns... the bike handles OK and accelerates a bit better than a 50cc scooter. Bottom end power is adequate but steep inclines are troublesome. The difference between this bike and a 50cc gas scooter is that there is a good amount of torque on the bottom end. And when I have it full throttle I don't feel like this electric bike's going to have a heart attack and die. It always feels smooth and quiet even at it's max limit. Cornering is heavy and twitchy as all the batteries are in the bottom which makes the bike want to stand up straight through turns. Shipping crate weighed 398 pounds but I suspect 48lbs of that was the carton. Having said that, it doesn't generally FEEL like a big heavy bike. It still feels like a smaller scooter.
I built a bank charger and wired it all up last Sunday. All five batteries hold a charge of 13.1 volts except one and it maxes out at 12.1 volts. It's charger errors out and gives an F03 code which means "Internal Open Cell/ Sulphated Condition". Hopefully the factory will make good on it's 6 month parts warranty and replace it. Those 50aH batteries aren't cheap. So I'm bank charging at home and string charging at work. At work I use a timer and set it for 2.5 hours as per usatracy's recommendation so as not to over charge the four good batteries while the slow one is coming up.
When I got the bike it was missing a trim piece from the front end and there was some lower body damage from shipping but my distributor and the factory have promised to make good on getting me replacement parts. They've recently stiffened the suspension and it's quite firm now. Feels good even with my wife on the back.
If the bike keeps running like it has this week, I'll be one happy camper. I'm sure I've left a lot out so let me know if anyone has any questions.