Recently bought a Razor Ecosmart Metro and love it so far, and inevitably i've already started modding it. so far, here's what i've done to it:
- Replaced the stock throttle & controller with a kit on ebay (link: http://www.ebay.com/itm/221706345030 - fastscooters controller rated at 36V 30A, throttle w/voltage indicator & key switch)
- Replaced the 3 stock 7AH SLA batteries with 4 10AH ones (i read on here that a 36v controller should be able to handle 48v of batteries, and so far it seems fine. all 4 batts fit in my battery compartment with minimal hacking with a dremel)
Now the next thing i'm thinking of doing is replacing the existing 36V 500W motor with a 24V motor. i have to admit i don't know a whole lot about this kind of stuff, but i've been browsing this forum for several days now and i think i'm learning some of the basics... and it seems that swapping in a lower voltage motor (36v -> 24v in this case) would yield me the quickest & cheapest performance gains.
does this sound like a good setup? ultimately i'd be looking at:
- 24V motor (500-650W, 2600 RPM? was thinking something like this: http://tncscooters.com/index.php?route=product/product&path=52_55&product_id=60)
- 48V batts
- 36V controller
should i consider upgrading to a controller like the YK43B? (even though i just got the fastscooters one from ebay, but i will get a better one if it would make that much of a difference... not terribly concerned about inaccurate battery levels if that's my only concern).
i should mention that while i would love to be able to go faster than 20-22mph, since this is my commuter vehicle my primary concern is reliability. so if switching to a lower voltage motor could lead to it burning out a lot faster in this setup, maybe it wouldn't be worth it. but maybe it's safe, but i don't know... hence this post
any advice would be greatly appreciated, and i apologize if this post is long and all over the place