volt question / lightning gt

[Blizzard]

Ok I just want to say forget what you know about batteries because it is all going to change soon, and I mean change.

How do you ask? Well easy really, its called ultracapacitors. GE has already made some and plans to put in to mass production in a few years. These ultracapacitors will have a charge time of just seconds and have a longer life time with no limit to the amount of charge and discharge cycles. Oh and they are more efficient for their size.

[DGthe3]

Originally Posted by Blizzard

Ok I just want to say forget what you know about batteries because it is all going to change soon, and I mean change.

How do you ask? Well easy really, its called ultracapacitors. GE has already made some and plans to put in to mass production in a few years. These ultracapacitors will have a charge time of just seconds and have a longer life time with no limit to the amount of charge and discharge cycles. Oh and they are more efficient for their size.

the problem with using capacitors is that although you can get a lot of juice out of them quickly, but they don't last very long. There is a cordless drill out there that recharges in a minute or so, using ultra capacitors, and it dies after driving about 5 screws. The best application for ultracapacitors in a car would be either a drag racer, or storing the energy from regen braking.

[Blizzard]

Originally Posted by DGthe3

the problem with using capacitors is that although you can get a lot of juice out of them quickly, but they don't last very long. There is a cordless drill out there that recharges in a minute or so, using ultra capacitors, and it dies after driving about 5 screws. The best application for ultracapacitors in a car would be either a drag racer, or storing the energy from regen braking.

This has been a problem but the new ones being developed should last much longer. I know this because at the place I work we a developing some for a plane we are building to fly completely autonomous for many hours.

[boxmonkeyracing]

Originally Posted by Blizzard

This has been a problem but the new ones being developed should last much longer. I know this because at the place I work we a developing some for a plane we are building to fly completely autonomous for many hours.

hope you didn't just give out any trade secrets for your company. . .especially if it's for the military. . .which sounds like it.

[CatiaJockey]

Originally Posted by chadrcr

What were you looking at when SEEing the amps go down/ volts go up?
The power company is throwing the volts, we are using the kwatts .... 120 vac should be the constant in this equation, the KWs used per hour change with the 'hair dryers' all plugged in and turned on...... check the meter outside your house/ apt, those are not volts going through it making it spin faster and charge you more....kws per hour.

I was talking TO this post :
"250kw is 250,000 watts, or 2,083 amps at 120v. If it's 240 dual-phase, you're still talking about 500 amps. New houses in the US have 200 amp service if the contractor isn't cheap. Old houses have 100 or even 50 amp service."
120Volts is NOT a constant, your house is fed with 2 phase 240VAC, most of your house is wired for 120VAC (thats 1 leg of the 2 phase 240 measured to neutral) If you do the math when a higher voltage is applied the amperage goes down but the KW stays the same and thats what your power bill is based on. A 250KW load is simply not possible on residential power period.