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Messages - TimothyNZ

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Tech Help / Re: Testing an electric scooter with lower battery voltage
« on: November 18, 2014, 04:40:07 PM »
Thanks kingcharles. All 9 batteries are wired in series, so I'm definitely looking at 108v. For the hell of it, I hooked up my 4 x 12v batteries today to see what would happen. I proved that:
1. The horn works! :-)
2. The low voltage warning light on the dash appears to work.
3. A couple of little lights came on on the controller itself, so at least it's not completely fried.

I will acquire the necessary 108v one way or the other and try again.


2
Tech Help / Testing an electric scooter with lower battery voltage
« on: November 16, 2014, 03:00:59 AM »
Hi all,

Firstly, I apologise ... I am very much a newbie to electric vehicles and to things electric in general. Secondly, I apologise if this is a common question covered elsewhere.

About a year ago I acquired two Italvel Day electric scooters (made in Italy), one without batteries and one with 9 x 12v 20ah lead acid batteries (long-discharged). There's not much info online, but I think the system was originally designed as a 48v system. It has a 1.25kw brushless DC motor and a proprietary Italian controller which has "108V 120A" printed on it. I am under the impression that both scooters were functioning normally before they were parked up for several years.

I am assuming that the old batteries are completely stuffed, but I would like to test that the controller and motor and other parts do in fact still work without going out and buying a lot of expensive batteries. I have 4 smallish (5ah) 12v AGM motorcycle batteries. My question is, can I test the system with a substantially lower voltage than it was previously running? Or will it a) damage the controller? b) damage the batteries? or c) not work at all?

Thanks. Tim

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