Battery Vehicle Society

If you have a copy of Bob Brants book it explains exactly how to work out what size motor you need for whatever size weight and performance of car. All the formulae are there if you can understand them. If not, then somebody has done it before and all you need do is use the same size motor for the s...

I love my lead batteries. They cost me £220 for a 120 volt, 200 amp/hr pack five years ago and are still going strong. They give me a range of 30 miles and I use them every day. If you do not require a long range or you also run an internal combustion car, then financially it probably is not wort...

I built my variac/ bridge rectifier charger based on the discription and diagram in Bob Brants book. I have an iscolation switch and a fuse on the output and an ammeter and voltmeter to monitor charging and I operate it using a timer.
Peter

And I will stick with my variac and bridge rectifier as I have for the last 6 years without toasting any batteries.
Peter

Smiths have been making electric vehicles since about 1935.
Peter

Last September I went on a tour round the Tanfield factory in Washington Tyne and Wear where they make them. There was one there in TNT livery.
Peter

The more weight you can shed off an ev, the better, both for speed and range. I managed to shed about 100 kgs of excess weight off mine. You will notice the benefit most when going up hill. Unless the controller is already running at maximum capacity such as the one in Nigels car probably is, then i...

I would get a Suzuki jeep or Jimney and drive one axle with each motor. The suspension would also be better able to cope with the weight of batteries.
Peter

An electric cooker socket with a 32 or 40 amp circuit breaker works great.
Peter

I am not a great believer in low rolling resistance tyres or the use of high pressure tyres on ev's. Unless you are running on perfectly smooth flat roads of which we have few, any advantage is cancelled out by the bumps and friction caused by the roads. It is also more harmful to the suspension and...