I need help on some issues I am having with my 40 LZ sedan in regards to battery charging. The problem is that I cannot keep the battery charged. Ever since I have had the car, the battery has run down as I drive it until it gets to the point where I cannot start it again. This makes driving the car anywhere very difficult because it is so unreliable and you never know if you will get it started again if you shut it off. I've had the car three years and in that time I have had two batteries, rewired the entire car (except for the spark plug harness)had the coil checked by Jake Fleming, and had the generator checked. Everything in the car works (lights, horn, guages,etc) so I believe I have wired it correctly. I would like to know if anyone can offer some advice. How long does it take to charge these batteries when driving? I can't imagine that when the car was new, it would have rundown the battery just idling but maybe you have to drive so long at a certain speed to keep the charge up. Also, what is the best six volt battery for these cars?