This is the Phantom 4 electric moped made by either Electra or Voy, or Electra Voy. It really depends on where you find your information. The company that made them has since gone out of business, but there are a lot of very similar models out there that look just like this one. 
The only problem with this scooter is that for a 220lb male, its really under powered. The motor is an electric 500watt hub motor that runs on 36volt 12amp hour batteries. The original battery pack was really diminished due to improper care so it was very slow when I first bought it. Since then, I have managed to put another set of batteries in it that have brought the performance up a lot, but still not to where it should be.
Speed:
Its hard to tell what its top speed is because the gage is inaccurate. If I am cruising down a slight hill full throttle it might say I am doing 15mph. If I were then to let off the throttle completely, even though I am still going the same exact speed or maybe even a little more, the speed might drop to about 11mph. It shoots right back up with the throttle. I think there is a glitch in the logic of the speedometer that results in it being more of a voltmeter + speedometer. I have no official speed test data to publish except that on flat ground I am going about 3 times walking speed, slightly slower than average biking speed.
Power:
This scooter right now has almost no power to speak of. It has a very difficult time going up a grade any more than slight. It can get up a decent hill if you use it like a push scooter and ride while pushing with one foot, but its just embarrassing so if it slows to much I just walk it. With the newer batteries though, it did trudge up Congress St. in Portland, ME which it couldn’t do with the older batteries. I estimate that speed reduces to about 4-5mph while going up this slight hill. I was thinking that I could add one of the older weakened 12v batteries to the newer three for about a 43v pack that might give it some more
power, but the controller has a shut off that kicks in if the voltage is above a certain unknown number. I would like to play with the pack and see if I can find that number. 36v just isn’t cutting it and maybe 40-44v would be a safe quick way to boost power up these hills.
Range:
So far I have yet to run out of range. I took it out last week for about 45 minutes on a full charge and the gauge still was reading high when I decided to call it a night. It started to rain a bit so I brought it in. I was using it continuously for those 45 minutes though. I went down to the Old Port and back up congress, took a bunch of laps around the block, and took it through the parking garage. The next night I took it into the USM parking garage for some more time trials. The scooter did really well for grade of the parking gararge, and made it all the way to the top with out pushing. The way down was a blast, it topped out at 20mph coming down.
Stats:
Top Speed: 16mph on flat ground. The speed was not weight contingent so when I had my friend try the scooter out it went the same speed even though he weighted about 75lbs less than me. I didn’t ask him because it would be hard to tell, but I’m sure the reduced weight added a lot of climbing power. A really skinny ten year old could ride this scooter up a hill that I couldn’t even start.
Range: 20 miles rated by manufacturer and seems to hold up. I took the moped for a ride one night to test it and got tired before the batteries stopped working with in range. I took it from my dorm about 2 miles down the road and then 2 miles back. Then I drove it up and down the 1/2 mile street about 15 times each way before I got tired of riding. Needless to say, on flat ground, it goes for a long time. I wish that they would have cut the range and added some power. These would have sold like hot cakes!
Motor: 250 watt hub motor that is severely underpowered. This scooter is built like a moped, looks like a moped, but rides like a power wheel. They should have put a minimum 500 watt motor in this scooter to make it serious, and if they wanted to bill it as it looks, a 750watt motor would have done the job. The other scooter that I bought had a 750watt motor, so even though I never got it to run due to an unknown electrical problem, it was rated to go about 35mph on flat ground. That scooter was a lot heavier than this little Voy, so a 750watt motor would have powered it up some nice hills and gave it the top end speed that it would need to compete in traffic. I would gladly reduce the range to have more powerful motor. There was room for an expansion battery pack that would easily solved the range problem, but to change the motor after purchase requires changing the motor, controller, and battery pack.
Battery: 3 12v 12amp hour = 36volt 12 amp hour. These batteries weight a ton. Litterally 40lbs or so. If you up grade to Lithium Ion, you can cut that down to under five pounds but get ready to pay upwards of $400. For a long term investment, it would make a ton of sense. Especially if you upgrade the motor. An upgraded motor and board would drain the batteries really fast, but if you had a LiOn pack, you could fit a lot more power in the small space provided with out using up your underseat storage.
Upgrading: There was also some talk in some of the forums that I read that mention upgrading. They said that the controller limits the current to the motor to prevent it from over heating and frying out. They said if you use the moped and put your hand against the motor and its hot, don’t upgrade the controller because you’ll fry the motor. If its cool to the touch, which mine was even after riding for twenty or thirty minuts over small hills and such, then you can upgrade the controller to allow more current and thus more hill climbing power / top speed to the motor. I even had an idea to fit some sort of cooling mechanism to the hub so it would move air over the hub and cool it off, but I ended up selling the moped first.
Lighting: I also had a lot of plans to add additional lighting to the moped to illumniate the road way better, to provide greater visability, and to illuminate the front weel better. Maybe even some ground effects.
GPS / iPhone: Another pipe dream that I had was to remove the dash and replace it with either a Tom Tom dock or an iPhone dock. This would provide a really cool speedometer / gps that would get me around the city in a hurry. I could remove the unit from the dock and keep it inside for safe storage. Additionally, with and iPhone I could have wired some speakers into the front panel to jam out on the road. That, I know is getting a bit crazy, but hey why not!
Horn: I’ve always thought it would be funny to have an enormously loud horn on a little moped. That was one other last thing that I wanted to do. Why did I sell this thing anyway?! Oh yeah because I had to move and needed the money for rent. Damn you rent! Next time I’ll stick it to the man.
Accessories:
blinkers, brake light, speedometer, battery gauge, under seat storage, two rear view mirrors, horn, optional additional storage, locking underfoot battery pack.
