2 Battery Questions

What ?? Where did you pull that statement out of ??

I believe the "book" specifically says that it is perfectly OK to leave it plugged in after it's fully charged..........every night.

Yes.
We want you to back up the statement that you made.......or admit that you made a mistake.
Giving erroneous advice seems to happen much too often with you.

 

point is, you shouldn't charge it when you get home, and leave it charged all night. doesn't matter if you leave it plugged in after it's finished charging. not a mistake, you simply misinterpret me.

 

You are just digging the hole deeper.
That is bunk too.
The system will only charge it to a point that the designers have determined is OK........and then it stops.
Your statement is absolutely WRONG.
I misinterpret nothing.

 

again, it's not about over charging, it's about leaving it all night with a full charge. that's why they installed a timer. i'm running out of ways to explain it.

 

They installed a timer so you could charge it when the electric rates are the lowest.
You said nothing about using the timer in your other posts.

You still haven't sited the page in the owners manual that explains why the timer is there.
Please do.

 

how do you know that?

 

From the manual.

Use the charging timer function as much as possible in order to fully charge the hybrid battery (traction battery) immediately before starting off.

 

No, but a citation to support an assertion is always appreciated.

 

see post #27.

 

Those statements are not the same.
It is YOU who has read something into the manual that is NOT there.

 

okay, okay, i stand corrected by the chap driving a prius c.

 

Leaving a PiP fully charged for a few hours or even days is not a big deal, especially if isn't left out in the Sun on hot days.

However, it is often ideal to use a timer so they charge finishes shortly before the car is driven:

1. having the battery spend less time fully charged is better since that can cause it to degrade faster especially in combination with higher temperatures.

2. Using a timer often results in charging overnight when there is less demand rather than right after getting home when demand is still high in the early evening. This help to "flatten" the daily power demand curve which tends to make generation more efficient. It may also have carbon advantages in some regions.

3. Charging in overnight cool temperatures just before driving helps warm the battery pack which allows it to discharge more total energy.

This is true for any Lithium-ion plugin battery pack.

 

I would add to Jeff N nice summary:
Delayed charging gives the battery the chance to rest and cool down from the intensive activity during driving, especially in the hotter seasons.

 

I think the point Bisco is trying to make is that it is better for the battery to sit for a while at 30 or 50% then it is at 85% (fully charged). How much better? No one can answer that definitively, but it is better. This is battery 101.

 

correct, thanks.

 

Indeed. And this is a far cry from "you're not supposed to leave your PiP plugged in all night," which was the challenged statement.

 

except that statement is not in the manual either. in fact, it goes against the advice of the manufacturer.

 

+1
It's "battery 101".