Way to force EV mode in G3 or C?

No.

 

I see you want to destroy your battery.

The primary reason the Prius' NiMH battery pack has a longer lifespan than your home rechargeables is precisely because the car does not allow you to run it all-the-way-down or to charge it all-the-way-up at your whim. It designed to do what it wants... and what it wants is to preserve the lifespan of the battery, which often means little top-ups with the ICE when it determines it needs it.

 

The battery in the PIP, if you could force it to run until it's drained, would get much more than 10 miles. The PIP's ~10 miles is maybe the difference between 50% to 80% of charge (pulled out of an orifice, but I hope you know what I mean in relation to partial drainage and partial charge) that the car allows you to drain before it says "not gonna allow you to drain it anymore, I'm saving the battery".

 

Also, the PiP has a lithium ion battery as opposed to a NiMH battery that the G3 hatchback has. Lithium ion can be discharged more deeply and doesn't have the memory effect that NiMH has.

 

To a s

To a small degree, yes. Every time you deep cycle the battery, you destroy a bit of it's capacity.
The battery makers learned long ago that the most damage to those batteries happens during the last 20% of discharge and the last 20% of a recharge(Both conditions are where a battery generates a lot of damaging internal heat.) The quick easy fix for that is to never discharge the battery below 20%, or recharge it above 80% charge. The prize you get for not having 40% of your battery avalible for use, is that the battery lives a very long time when used that way.

On a non plugin hybrid that gets all its battery charge from the onboard gasoline engine, you lose every time you force a deep discharge of the traction battery. instead of just the normal inefficiencys of converting motion to electrons in MG1 and back to motion in MG2, you add the efficiency loss of discharging then recharging the traction battery, something that is only 90% efficient at best . just one more operation that cost fuel economy and puts unnecessary wear on the traction battery

 

Now I see why the OP's nick rings a bell.

Hybrids don't make financial sense | PriusChat

 

I think few people have bothered to find out. Running the car in EV mode is possible if you keep a really light foot, avoid any sort of inclines, and keep to really slow speeds. In other words, it is completely impractical for actual normal driving. It is, however, pretty useful when you have to move your car around/in-and-out of the garage, to a close-by parking spot, etc. It keeps the engine from having to fire up, which is necessarily inefficient for this kind of usage since it will not have any time to warm up.

It needs to be remembered that there is no point to trying to run a non-plug-in hybrid in EV mode other than the situation I've described above, in which you do not need to use the car enough to actually warm up the engine. This is because the energy you use in EV mode is necessarily inefficient, in that any charge you have in your battery is the result of either being generated by the gas-burning ICE, or recovered through braking. There is an efficiency loss at every conversion step, and it is actually more efficient to just use the ICE directly.

You might begin to see why this is different for plug-ins and even more electric-biased cars (Volt) and pure electric cars. The energy that ends up in the battery in those vehicles are mostly (if not exclusively) generated at much higher efficiencies at a power plant.

So why is there even a battery and motors involved? That's because any energy you can scavenge from the need to brake/slow-down, is much better than dissipating that into heat and worn-down brake pads as it is with conventional, non-hybrid cars. This is why they say hybrids excel in the city and stop-and-go driving, and aren't necessarily superior on the highways. Despite the mooting of the hybrid advantage for highways, the Prius is designed as a remarkably aerodynamic car, and the vast majority of the energy involved in keeping a vehicle moving at highway speeds goes to overcoming air resistance. This is why the Prius is as efficient as it is on the highway as well.*

* - if you can shoehorn an efficient, non-hybrid ICE with an efficient CVT into a Prius body, it would probably do about as well on the highway in terms of efficiency. This is assuming that you don't have to ever slow down.

 

You will get worse MPG. Just don't take off very fast and don't go over 42 and run the ac on high and you will be able to drain the battery.