# Gas to EV Scooter conversion
**URL:** https://community.electricforum.com/t/gas-to-ev-scooter-conversion/514
**Category:** Scooters, Bikes, Sagways
**Created:** [January 7, 2008, 6:02pm UTC](https://community.electricforum.com/t/gas-to-ev-scooter-conversion/514 "2008-01-07T18:02:47Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Technology\_Teacher](https://community.electricforum.com/u/Technology_Teacher)
#### Post date: [January 7, 2008, 6:02pm UTC](https://community.electricforum.com/t/gas-to-ev-scooter-conversion/514/1 "2008-01-07T18:02:47Z")
Technology Teacher needs help?
I am working on a gas Adly scooter to new Evader brand electric rear end and other parts. I removed everything gas related and just ordered a 48v- 5amp charger today. I need a source for 2 1/8" dia. volt and amp gauges that safely handle 48v . I have four Interstate deep cycle batteries which are 12v /35 A/H. I need to be able to monitor them along the way. A main disconnect or keyed switch which is also a 48v capable?
Any ideas here?
Jim
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### Author:  [@Paul51480](https://community.electricforum.com/u/Paul51480)
#### Post date: [January 8, 2008, 4:26am UTC](https://community.electricforum.com/t/gas-to-ev-scooter-conversion/514/2 "2008-01-08T04:26:20Z")
I’m doing a 48V motorcycle and I got my gauges from Ebay there are quite a few different ones on there.
These are the ones I went with :
The battery meter measures 2-3/16’'O.D. X1-3/4 deep
The amp meter measures 72 mm x 72 mm x 45 mm
Now I just have to figure out where I am going to mount them LOL…
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### Author:  [@frodus](https://community.electricforum.com/u/frodus)
#### Post date: [January 8, 2008, 8:44am UTC](https://community.electricforum.com/t/gas-to-ev-scooter-conversion/514/3 "2008-01-08T08:44:53Z")
well, I’m not sure if there’s interest, but the controller I’m helping with has an interface to a PDA. Its programmable in VB, and you can put a ton of stuff on it. All you need is a small DAQ board.
Is there interest to drive a product? I mean, lots of people want gauges for current/voltage… would they like a unit that could interface to a PDA to display? Right now we have a unit that can monitor up to 18 batteries, and current at the battery. Its just for test, but we may be able to supply a product if need is high.