Prius (2010-12) :: Hybrid Battery Slowly Drains While Engine Running
Feb 17, 2015
So this has happened to me a few times now in the cold temps. For my job I'm left to sit and idle every now and then after over an hour of driving.
I'll park my car, ICE will turn off, ICE temp at 195. Sit with heat on at 65 degrees. After about 10 minutes the engine temp will drop to about 110, which the ICE will start and warm up to about 135 and turn off. Hybrid battery stays above 55% and normally hits about 65% on every ICE start. (I have extra instrumentation installed to monitor)
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So I got a 2008 model, only owner. It has 107K miles. I've noticed something the last couple months now. When I park the car in the garage after coming home from work it has a full charge, about 3 bars below top, it's at the max of the blue color.
When I start the car in the morning it still displays the same level. But after driving down the road about 3 blocks it seems to update slowly and drops the level, sometimes down to the brown, about 3 bars high. The car will run rough for a while almost every morning now since it's not using the hybrid battery to smooth things out.
Ever since owning the car I've noticed it can run rough sometimes normally, like when you're at a train crossing and the battery drops to 2 or 3 and the engine powers on to charge it up a bit. When I drive away you hear the engine a lot louder than usual as it seems to be running on engine only until the hybrid battery gets sufficiently charged and you feel a lack of power as you accelerate.
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In comparing the battery drains on a Camry hybrid versus a Prius Gen II hybrid I discovered both have three stages of battery drains after a door open incident. On a Gen II Right after the door is open the drain was 1.37 amps.
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Code says P1121 Accelerator Pedal Position Sensor Range/Performance Problem. I heard that was wrong and its really coolant control valve? The battery drains fast and the can runs like crap. Would this code be doing that to the car?
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Recently I started to hear engine pinging/knocking-like noise when the hybrid battery level becomes low like two bars and the car starts a charge cycle. I also hear it occasionally when I accelerate on uphill. Is this normal or should I take it to a mechanic?
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up. Coolant temperature was high (160 F). Car was in low speed (5-10 mph because of traffic). Battery level was high (67.8% 7 pips).
But gas engine was still running non-stop.
Checked battery temperature. It was 28 F.
Switched from recirculating to fresh air mode. The battery temp raised from 28 F to around above 32 F rather quickly. Then the gas engine stopped and car started to run on full EV mode.
Did not know the fresh air mode will have such a prominent effect on battery temp...
Will use more fresh air mode in summer when the AC is blasting.
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Some years back my "farm" '05 prius when a host of bells and whistles went off, cooling fan ran more than normal, and I lost power a couple of times. Turned out this farm prius had an accumulation of dirt, dog hair, hay and other debris that needed to be cleaned out. You got me through the whole process, and the car's run fine until.... . Fast forward a couple of years to 200,003 miles. Now the cooling fan is running pretty constantly, the red triangle stays lit, the check engine light comes on, the (!) is on, and the VSC light is on. Haven't hooked it up to check codes, but did check cooling fan and it's clean. Would it possibly possibly better to change the 12 volt battery?
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Every once and awhile when I take off in the c the car drains the battery like it gets stuck in ev mode. The ev light will be off and the ice will be running but from a dead stop take off, the instant Mpg will read between 50 and 75 Mpg till it drains the battery gauge .
After the drain it works normal charges the drained battery and might not happen again for a couple of hours or a month there is no time period it happens.
Does this sound like a normal hybrid behavior? That's what I thought at first but because of the inconsistency of the behavior.
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I'm new to this technology. I bought 2008 t spirit prius . The battery drains in couple of miles. I don't know what to check .
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It seems like the fan that cools the hybrid battery pack turns on quite often, almost everyday after two or three hours of driving. I heard it once or twice on my '05, but on this one I hear it pretty much everyday.
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Purchased a 2006 prius not too long ago with just over 100k miles.
I like the car, I average about 42-44 mpg. It is really for my commuting. The question I have is it seems like my brake pump runs all the time. When I take my foot off the brakes, it runs, when im in a drive-thru, my battery drains super quickly, however if i put in park instead of leaving it in drive while in the drive-thru, it does not.
My only thought is there is something wrong with my brake pump and the way it drains batteries.
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My wife left her newer 2013 Prius "on" at work....by this I take to mean she did not hit the on/off button when leaving the car. to turn off the car I asked if it started ok, and she reported yes; however on return from the gym about 3 miles away, she says she noticed the Hybrid Battery bars going down very quickly now and the gas-engine on almost the whole time.
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I've noticed that after sitting over night my battery for the hybrid system is not charged enough to operate the car in EV or for the first mile or two it does not seem to use as much electric power to supplement the car. After a couple miles it is charged or near charged and I see more use.
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Today I went in may garage and heard a humming from the rear of my 2014 prius. I assume it is the hybrid battery. This was several hours after the car had been driven. I turned the car on and then off and the humming stopped. Is this normal? I know it is common for it to hum immediately after you turn the car off for a bit, but several hrs later?
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How I can charge my hybrid battery while driving on city streets with an average speed of 35-45MPH. Once I get off the highway, the hybrid battery is almost full, only missing two "bricks" or "Bars." I will then accelerate very slowly only using the electric motor to drive the vehicle for the next couple of miles.
Once the battery has depleted to where it only has two bars, I will then accelerate a little faster to run the engine so it can charge the battery. But, I bring up the energy monitor and then watch the arrows.. making sure that arrows are coming out of then engine to drive the vehicle AND making sure that the electric motor is not supporting the engine.
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Warning light came on and I went straight to dealer. My hybrid battery is bad after 150,000 miles. Can I drive the car with on just the gas engine? No one at the dealership seems to know.
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I have a 2011 prius. Lately after work when i get back in the prius the battery will be half what it was when i parked it in the morning. Is my battery dying already. im at 36,000 miles
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Do you think it would shorten the life of the hybrid battery if I make a habit of really trying to EV in the last mile of arriving home?
Tonight, I accelerated quite slow after the last stop to stay on battery, but I noticed the battery bars got down to 2.
Got to wondering, if I do this a lot, might it shorten the traction battery life such that it fails at 11 yrs, for example, instead of 14 years?
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I just switched out my hybrid battery and put in a brand new one. Now, the car isn't doing anything and all that's on is the check engine light. What now? I was told I had to tow it to Toyota and have them reset the computer. Sound right?
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My girlfriend has a 2010 prius with the navigation package. We go to the drive in movies quite frequently because it's cheaper and close to us. Every 30-45 minutes the prius will automatically shut off the battery. The interior lights turn on and the sound goes off.
We are kind of getting tired of getting dirty looks when this happens. So we're wondering if there is a way to take this setting off.
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Long time since I have posted anything here, but I noticed the fan running far more than normal here. Now the outside temp was fairly warm, but the most recent day I noticed it, the temps were only around 80-85 degrees out.
I usually don't run the AC in my car unless it is terribly hot out - so when I hear a fan running it stands out to me. It is very obvious that it is coming from the rear seat vent area.
The temps here have taken a dip (highs tomorrow are only about 70-75F), so I will keep an ear out for it to continue. Is this something to be concerned about? It is a 2010 Prius IV with about 32k miles...
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