You're xootr ex3 is no longer going as fast as it used to when you barely bought it, it's lost it will to live. It's dead right, time to chuck it? Nope the most likely culprit is the battery pack, like all rechargeable batteries they have a certain Charge/ decharge cycle life, so depending on the amount of miles you put on your ex3, you'll have to replace the battery packs every so often.
The battery packs consist of 21 batteries in arranged in 3 rows of 7 , I'm not really sure the specifics of the batteries themselves, but a couple of years ago I found a company that was able to rebuild the battery packs to it's original state. I don't remember exactly what company I used, but all I had to do was ship them the battery pack, and they were able to determine what kind of batteries where in the pack, and re-used some of the proprietary parts in the pack for voltage regulation, and rebuilt the battery pack back to to it's original state. The batteries they rebuilt the pack with even had a higher capacity, hence longer range, than the original pack. This procedure cost me about $140, which was about the same price that xootr used to sell the pack for.
I found another company that I'm sure would be able to complete this task (I think that this might actually even be the same company I used before)
Unfortunately Like I said on my previous post, I'm on a really tight budget right now, so I can't get my battery pack rebuilt right now, but this is one of the things that my xootr needs in order to get back on the road again, so I'll let you guys' know as soon as I start the process.