How far can you go on electric power.

i don't have an EV switch. from Yucca Valley to Joshua Tree i end the trip with a full battery. From Joshua Tree to Yucca Valley, and 8 green bars to start, i get to 2 or sometimes 1 purple bar before getting half-way up the slight grade.

Of course, the ICE is always running because I'm at highway speeds.

 

Depends on the charge, and the speed on ev. Could be as little as a mile, could be 2-3 at the most.

 

on flat ground, with little wind and nice weather, i used to get a mile or so at 10-15 mph.

 

Believe the car needs to totally warmed up (Stage 5) to get much EV. Its maybe 2 miles and 40 MPH max if I recall.

 

Last time I ran out of fuel during a unexpected late night trip when gas stations were closed, I made it 3 miles on electric before it shut down as I coasted into a 24 hour station. It quietly held about 45 mph with only a light throttle input, but I didn't want to go any slower and lose speed. I'm pretty sure I didn't have nearly a full charge when I ran out either.

 

Woah that's far! I'll be lucky to get half a mile on my 05. The battery goes to purple sitting with the A/C on for 2 minutes!

 

Yep I can relate to that Lectro.

My poor old battery now has 282000 km on it (driven a lot in hot weather) and is certainly showing it's age. From a normal (6 bar) state of charge I doubt I'd go more than about 1km (5/8 miles) before the bars start dropping rapidly. She's still plugging along and getting good fuel efficiency though.

 

Yeah, auto AC in the prius can be pretty efficient if you don't have the temperature set too low, and your results of 2.9 km sounds about right for a battery in good condition.

Of course if a lot of downhill is involved it changes everything. Even with my nearly worn out battery I have one stretch near home where I can get 5.5 km all on EV if I'm lucky enough to get all green traffic lights my way. That route includes about 90m of decent however.

Also, even with a battery that's fairly well flogged like mine, from an all green bars maxed out SOC I have still gone up to 3km on the flat in EV, but then the battery suddenly collapses from about 5 blue bars down to purple almost instantly. This is quite bad for the health of the battery, so I normally avoid even trying it. This (the sudden collapsing of SOC when driven in EV from full charge) is a sure sign of a battery in poor condition.