On Wed, 23 Nov 2005, Mike Hunter
I think Mr. Ohms did not give you a complete reply when you asked him.
Hybrid Lovers Read This and LamentHi! cross-posting removed Bill Putney A combustion engine would be a poor choice for a starter, on account of being unable to deliver torque from standstill. Where electric motors tend...
Hybrid Lovers Read This and Lament 3197understood to have stated the following: wisdom, love, and respect (spelling and grammatical errors left intact) Even a safety nut like me doesn't carry things that far. My tars have been...
Different battery technologies have different voltages per CELL. A normal flashlight battery is a single cell that produces 1.5v. NiCd battery cells produce a little under 1.5v. Lead acid battery cells produce 2v per cell -- a normal 12v battery has 6 cells in series.
There are 2 other factors that are key to battery usage: 1. Internal resistance. This really determines how large a current the battery can deliver. 2. Capacity: how long can the battery deliver the necessary current?
Now, to replace a battery with one of a different type, one would have to match the voltage and the internal resistance (otherwise it would not produce the necessary power) of the original. To build a small 48v LA battery is not hard -- it just requires 24 cells, each of which could be quite small. The overall size need not be bigger than a standard 12v battery.
The next question becomes the capacity -- or really, the energy storage density. How much energy can you store in a given weight or size?
Finally, as was mentioned earlier, charging would likely be a problem when replacing one type of battery with another: a charging profile that works well for one battery technology may kill another quite quickly.
So, it's not just about what Mr. Ohm says, but also what Mr. Capacity says and Mr. charging profile.
So, the question should be: Will they also design a trailer to carry all the LA batteries need to store enough energy?
