2023 Peugeot E-2008 54kWh GT self-discharge rate

facade

ididgetwhereiamtoday said:

facade said:

born_again said:

facade said:

Be careful with Stellantis cars, if you don't start the motor they don't charge the 12V battery, so sitting with the ignition on will drain the 12V battery fairly quickly. (They will switch off after 30 minutes or so to try not to flatten it completely).

That is the same with any EV.
Never sit in car in ACC mode. Playing with stuff

Either have the car fully turned on, or in utility/camping mode, where the main drive battery powers the 12V side.

I thought it was a Stellantis thing, and more sensible manufacturers would connect the high voltage battery to the DC/DC converter whenever the ignition was on, rather than only when the ignition is on and you start it.

What do you mean?
 If the ignition is on, it is on. You get in the car and you press Start, this turns the car/ignition on. You cannot run the heater or air con etc without it being on… can you? These high powered utilities would not run on the 12 v battery?
j have a Kia and you can’t in that. 

You get in with the key on you.

1) Press the start button, but don't stamp the brake pedal into the bulkhead (not kidding here, just pressing it a bit doesn't work). The car powers up, the headlights come on to irritate other traffic if it is dark, the dash display comes on showng 0mph (but there is a tiny "ready" not there) the map displays  and the wireless starts blaring. The HUD doesn't wind up, and you can't put it in "gear".  The 12V battery discharges (at 15A lights off, I didn't bother to try in the dark as I can't read the meter!) It will shut down when it thinks the 12V battery is about to expire. IIRC, there is a tiny red battery symbol to show it isn't charging.

or

2) Stamp on the brake pedal as hard as you can keep the pressure on, and hold the start button in until it goes "ping!".

Everything happens as above, except the HUD comes up, the dash says "Ready" in tiny letters by the speed, the tiny red battery symbol isn't there and you can select F or R and the car will move. (I measured an initial 15A charge into the 12V). The heatpump runs and the aircon/heater works.

or

3)  Just press the volume control, the radio comes on, but not the dash or any lights.

In an ICE car, if you turn the ignition key one click, it is on ACC, and the radio works (but nothing much else), two clicks is ignition ON and everything works, but if you don't start the engine the battery goes flat (hence the angry red glow of that battery light), so you flick the key to the right, some of the warning lights go out and it makes a nice deep rumbling sound,  shakes very slightly and the Rev counter moves up a bit, and it charges the 12V. (Some vehicles make a tinny sound, and the car shakes a lot as there are up to 5 cylinders missing!)

I guess Stellantis are trying to reproduce the entire ICE experience including flattening the battery if you turn the ignition on and don't start the engine!

Seriously, it is somewhat of a liability, as one of the joys of an EV is being able to sit parked in the blazing sun waiting for someone with the aircon on, without illegally belching out fumes & making noise.

The only way to do it is to sit with the seatbelt fastened, and the motor activated, but leave the selector in Park.

(If you don't fasten the seatbelt it shuts down in a couple of minutes)

Catches owners out, as you think mode (1) is the same as mode (2) except safer for listening to the radio as the car can't accidentally start moving- it most definitely isn't as the 12V battery will go flat. It would be better if mode (1) didn't exist, as you can turn the radio on for a while by pressing the volume control.

ididgetwhereiamtoday

facade said:

ididgetwhereiamtoday said:

facade said:

born_again said:

facade said:

Be careful with Stellantis cars, if you don't start the motor they don't charge the 12V battery, so sitting with the ignition on will drain the 12V battery fairly quickly. (They will switch off after 30 minutes or so to try not to flatten it completely).

That is the same with any EV.
Never sit in car in ACC mode. Playing with stuff

Either have the car fully turned on, or in utility/camping mode, where the main drive battery powers the 12V side.

I thought it was a Stellantis thing, and more sensible manufacturers would connect the high voltage battery to the DC/DC converter whenever the ignition was on, rather than only when the ignition is on and you start it.

What do you mean?
 If the ignition is on, it is on. You get in the car and you press Start, this turns the car/ignition on. You cannot run the heater or air con etc without it being on… can you? These high powered utilities would not run on the 12 v battery?
j have a Kia and you can’t in that. 

You get in with the key on you.

1) Press the start button, but don't stamp the brake pedal into the bulkhead (not kidding here, just pressing it a bit doesn't work). The car powers up, the headlights come on to irritate other traffic if it is dark, the dash display comes on showng 0mph (but there is a tiny "ready" not there) the map displays  and the wireless starts blaring. The HUD doesn't wind up, and you can't put it in "gear".  The 12V battery discharges (at 15A lights off, I didn't bother to try in the dark as I can't read the meter!) It will shut down when it thinks the 12V battery is about to expire. IIRC, there is a tiny red battery symbol to show it isn't charging.

or

2) Stamp on the brake pedal as hard as you can keep the pressure on, and hold the start button in until it goes "ping!".

Everything happens as above, except the HUD comes up, the dash says "Ready" in tiny letters by the speed, the tiny red battery symbol isn't there and you can select F or R and the car will move. (I measured an initial 15A charge into the 12V). The heatpump runs and the aircon/heater works.

or

3)  Just press the volume control, the radio comes on, but not the dash or any lights.

In an ICE car, if you turn the ignition key one click, it is on ACC, and the radio works (but nothing much else), two clicks is ignition ON and everything works, but if you don't start the engine the battery goes flat (hence the angry red glow of that battery light), so you flick the key to the right, some of the warning lights go out and it makes a nice deep rumbling sound,  shakes very slightly and the Rev counter moves up a bit, and it charges the 12V. (Some vehicles make a tinny sound, and the car shakes a lot as there are up to 5 cylinders missing!)

I guess Stellantis are trying to reproduce the entire ICE experience including flattening the battery if you turn the ignition on and don't start the engine!

Seriously, it is somewhat of a liability, as one of the joys of an EV is being able to sit parked in the blazing sun waiting for someone with the aircon on, without illegally belching out fumes & making noise.

The only way to do it is to sit with the seatbelt fastened, and the motor activated, but leave the selector in Park.

(If you don't fasten the seatbelt it shuts down in a couple of minutes)

Catches owners out, as you think mode (1) is the same as mode (2) except safer for listening to the radio as the car can't accidentally start moving- it most definitely isn't as the 12V battery will go flat. It would be better if mode (1) didn't exist, as you can turn the radio on for a while by pressing the volume control.

It’s ridiculous to put all that pressure on the 12 v battery when there’s 50/60 KWs available!
silly engineering. 

born_again

ididgetwhereiamtoday said:

It’s ridiculous to put all that pressure on the 12 v battery when there’s 50/60 KWs available!
silly engineering. 

No it's not. You do not want 400V drive battery being live when car is not fully turned on. 

Someone starts working on the car, I'll let you guess the result.
Anyone working on a EV is supposed to wear protective gloves, even when the safety fuse is pulled, so the drive battery is totally isolated.

https://www.safetecdirect.co.uk/work-gloves/general-work-gloves/electrical-gloves