Ok help me out how do you build 120 volt 100 amp battery

[Groundloop]

@cletushowell,

Do you have a military surplus reseller nearby? If you have, see if you can
find the OLD no-break power supply system. The no-break system is a huge
fly wheel connected to a generator/motor. The motor spins the flywheel and
store energy. If the power grid goes down then the generator will provide
110 Volt AC (or 230 Volt AC) for a while until the stored energy in the fly wheel
is used up. You will need a fork lift to move it. It can be said that this type of
no-break is indeed a AC storage battery. The modern way of doing it is to
use regular DC batteries to store energy and then use an DC to AC converter
to get you 110 VAC (or 230VAC) out of the system.

Groundloop.

[WilbyInebriated]

come on you guys...

you may as well have just told cletus to go get an AC capacitor and then tell him that is an AC battery...
a flywheel connected to a generator is no more a battery than an AC capacitor is a battery.

[the_big_m_in_ok]

@cletushowell,
... The no-break system is a huge fly wheel connected to a generator/motor. ...

An uninterruptible power supply will do the same thing without a flywheel.  The battery, however, supplies the power and originates with DC from its plates and electrolyte.  AC from the incoming power mains charges the battery; this battery takes over when the AC fails.

http://en.wikipedia.org/wiki/Uninterruptible_power_supply

--Lee

[cletushowell]

http://www.youtube.com/watch?v=7ffkxqjTlq8&feature=youtube_gdata_player
http://www.youtube.com/watch?v=7ffkxqjTlq8&feature=youtube_gdata_player
Check out this video on YouTube:

http://www.youtube.com/watch?v=M2DrR3AYY8Q&feature=youtube_gdata_player

want to know the secrete
come buy me a beer

[JasonD]

AC can not be stored... AC is a description of a wave...

You can't store a "shout" in a glass jar (sound wave are the AC equivelant of air pressure), you can only store the solid pressurized air "DC" which is the result from shouting. That would imply that the power is constantly vibrating in the battery, and that it would vibrate when it exits... at what frequency? (Electrons are already vibrating, but not in frequency pulses like the ones you forced them to be at when they are stored. EG, No battery will vibrate at 50hz when you pull power out. Being "AC safe" is not an "AC battery". It throws out the unused half of the wave, or has a built-in rectifier, which makes it safe for use in an AC flow of power input. Same as an AC or unpolarized capacitor, except an unpolarized capacitor can charge + or - in any direction.)

What you want is to rectify the AC into DC and store it in an ultra-capacitor. From there, you can safely move most of that into a standard 12v battery. You need a single 12v 1000AH battery. Slowly charge the battery by draining the ultra-capacitor with a joule-thief, to get the most out of the cap.

Ultra-capacitors can hold a charge for days, unlike a normal capacitor. You actually need a 200A @ 200V @ 300Farad ultra-capacitor bank. (Sounds large, but 5.5v 10F ultra-caps are about the size of a small MP3 player.)

I have 6x 5.5v 2F maxwell ultra-caps, but they are expensive.

Your only other alternatives are a "layden jar", "power-grid capacitor", or a lithium rechargeable bank.

It is cheaper to do a fork-lift or golf-cart battery. With the exception of the laden jar, which has high losses, but you can boost the voltage up to 12,000v at 1A (Same thing as 120v at 100A). I think that was the power level you said you needed to store.