Battery Vehicle Society

I agree with paul decide on how far, fast etc and most importantly budget! Various solutions for a gearboxless design either use a chain drive diff (as used in bike engined cars) or a vehicle with rear wheel drive (eg BMW316 compact, Mazda MX5) Motor wise if budget allows go for AC because of the wi...

I was thinking, there must be sufficient expertise and experience on the forum and in the club for us to design and build a single seat, longer range commuter vehicle that could cruise at 55mph on the motorway with a top speed of, say 65mph. With my research for my own commuter EV for longer range ...

To agree with Paul about not stretching battries, and throw in my bit. I am looking at range on an ev for a much more arduous run and to get a "working" range of 55 miles I am looking at a vehicle with a "total range" of 75+ miles. Experience from the berlingo we run shows that i...

It also depends on the type of motor, AC motors give better speed/torque results. Series wound DC give huge torque at low reves which tails off. Separately excited DC (as per berlingo) give a more controlable relationship. AC motors (within parameters) can give constant torque across a wide rev rang...

Oh how I would love to put a machine together for something like this but if we want to show the septics whose boss, the issue is, to paraphrase a well known politician, batteries batteries and batteries which means money money money! and with LiPo cells being good on performance and "fitabilit...

having been through the process of selecting a dishwasher to work on hot fill to use with solar water we found the Miele range allow hot filling up to 60C and the use of solar heated water is specifically mentioned in the manual. This feature was denied by the half wit in the local electrical store ...

I have been very impressed with the osram range of LED lamps for architectural lighting (http://www.cld-dist.co.uk/shop/led_dragoneye/all/LEDDE1W3854.html) . I have used these for several projects and they are reliable and easy to use. You must use the special driver unit, bu that is as easy to use ...

The lower voltage option with a Curtis controller is also on the list, and I have got a good few prices on suitable motors there too. I am just looking at the various possibilities at the moment and I agree about the HV safety issues. The MES DEA package looks good for a road vehicle as it would see...

I suspect that the plug in meter may not be accurate on the waveform from your generator. If your rev counter shows the speed of the machine to be accurate then I would try and borrow an oscilloscope to check the waveform and frequency. If you then find the frequency is wrong some serious head scrat...

I am planning the conversion of a Mazda MX-5 to electric drive over the next year or two. My reasons for the choice are the simplicity of transmission (rear wheel drive + propshaft) and the relatively light weight as well as quite a lot of bonnet space. I am aiming for a fairly high voltage drive (3...