please sir, i want more. ,,, how to add BIGGER BATTERIES more power

Check out the PHEV conversion section in the Gen2 forum. It won't be exactly the same, but it'll give you a good idea of what's possible. Prius PHEV Plug-In Modifications | PriusChat

To be honest, you're best off getting a PiP or Volt if you want more battery. Adding batteries isn't as glorious or easy as it may seem. Solar on the roof of a car won't get you much more range, there isn't much surface area and the angles are almost always less than optimum. There's a reason why the solar roof on some Prii is only used to ventilate the car.

 

"How hard can it be"? Let's just say no other company has succeeded. If you do better than Honda, Ford, Nissan, or GM let us know how.

 

Easy to add extra batteries. It has been done lots of times before when the Prius first came out. And the conclusion was it makes no difference. Solar will also make no difference. You can fit what, like 300W of panels on the roof? You probably won't get more than 100W out of it with the sun unless you drive at high noon. The Prius can dump 120A at 230V. That's like 0.3%

 

Unless you have expertise, best to live with what you have. If you could double the range of the PIP, you still wouldn't have much. There are other vehicles out there with much greater range. Things are changing for the best and only getting better, but not without a greater cost..

 

You're still limited by the motor and inverter, which are sized and programmed for the stock battery. If you hacked the programming you might be able to squeeze a little more torque out, but who knows how much you would be reducing the life of the motor and inverter. Have you test driven full EVs? They're pretty torquey and being on Hawaii you likely wouldn't have to worry about range too much.

 

The route to more power is turbchaging or supercharging the engine. That of course involves changing the fuel injectors and supercharging is prefered. But then a great many other things get involved.
Just out of curiosity where were you going to put the extra batteries? And would the added weight defeat any battery output gains?

 

Do they even make a supercharger or turbo for this engine?

 

As a kit? Not that I know of. Some people do not let that stop them.

AutoSpeed - Technokill: Building a Blown Hybrid, Part 1

AutoSpeed - The Story of Turbo'ing a Hybrid Prius, Part 1

If you wanted about 25 more HP you could swap in the Otto Cycle engine for the Atkinson Cycle version.

Got Hybrid? - Sport - Car and Driver

 

A good exercise before embarking on any modification: what would a potential buyer's reaction be when learning of it?

 

Good news! Auto manufacturers have just what you want and need in several plug-in hybrid flavors: 10 mile, 20, & 40 mile versions (ranges are approx.) with 8yr/100k mile warranties. Once you go plug-in, you won't want another kind of vehicle.

Solar? Put it on your house. Especially in Hawaii, it will more than off-set what your vehicles uses.

 

there's a piss kit for that.

 

Anyone know if the next gen c (2016 ?) will make the switch to a lighter lithium-ion battery like the liftback ?

 

apparently not.

 

yes, I read some news about the next gen Prius. there will be TWO versions for the Pirus. one is upgrade version lithium-ion battery. that is more like a optional trim level. the second one will be same as type battery for current gen. the MPG improvement for the regular one should be the same as the Prius C now. the lithium-ion battery version will be 1 or 2 MPG higher.

 

for the power upgrade question. I was planing to add two extra motor on the back wheel to make it 4WD. after checking the rear end, it is not possible unless you modify the read end. that is not what I want unless you are not planing to sell the vehicle and drive it until the wheel fall off.

so I am planing to add a 5th wheel on the rear end. it is more like a add on motor kit . will use the rear tow hook and tow hitch(add on. about $135) as support for the 5th wheel suspension. how many kW motor depends on how fast and the main purpose of the 5th wheel.

if you go for high MPG, less KW motor will be fine and it will have longer range. mainly use for cruising 15 - 50 miles.

if you go for torque or faster acceleration, high KW motor is better. you can use the prius to charge the battery for the 5th wheel motor.

for better fraction, I am planing to use a wide tire and small rim. still looking for some good combination.

http://99mpg.com/Projectcars/ewheelforanyvehicl/

 

this sounds intriguing! btw, i think i read 3 versions of gen IV including plug in and all wheel drive.