Original owner of my '07 Prius. Never gotten full green bars in the first few years of its life. It is mostly flat where I live. As the traction battery aged, I would occasionally see full green bars from a highway exit with light break pressure to a stop sign. As the battery further aged, many years after, the traction battery would fluctuate from empty to full quite often. This lasted a few years and reduced the MPG. And finally, death of the battery, which triggers the infamous dash lights. I resurrected it a few times by clearing the codes with my ODB2 adapter. Last summer, '24, I replaced the traction battery with an OEM, purchased from the Toyota dealership. With this new battery, I am getting full green bars quite frequently; about once a week. Makes me wonder if the battery is not properly balanced or if Toyota changed the charging logic with the new battery pack. Other than that, the car drives normally with expected MPG as compared to it when it was new. Are there any original owners out there that have replaced their traction battery with an OEM battery pack? I'm wondering if you have the same experience with the new OEM battery pack; how it shows full bars quite frequently. TLDR, OEM traction battery getting full bars more frequently than expected compared to original when new. Anyone with same experience?
This is a sure sign of aging high-voltage battery. This is not resuscitation of high-voltage battery. When you shake a thermometer with a high temperature, the patient does not recover from it. This is not a sure sign of aging high-voltage battery.
Yeah Yes but how much are you driving the car in one drive with a good traction battery even in the summer using the air conditioning properly You should only be seeing blue and green bars on the multifunction display going into the magenta red is only for people who sit around and parking lots running their air conditioning wide open and sitting in the car instead of going in the restaurant and using their air conditioning to me totally foolish but hey do whatever and the folks who want to live in the car camping yeah okay cool If that's what it takes I guess that's what it takes. But all four of mine go from blue to green and then as I'm using the car as in driving it the green will turn to blue and as I keep driving it it will turn to green again usually within a few minutes unless I'm really pounding on the car really hard which is not what a Prius is for I have other power sports and vehicles that can take a pounding.
You have a new warranty with the battery, that's all you have if it somehow fails. It's not likely for a new battery to fail, but anything can fail and that's why you have a warranty.
If this is something you've only recently noticed, it may be due to the rapid temperature swings we've been seeing over the last month or so. If I do a lot of driving on a very cold day, then the next day the temp is a lot warmer, I've noticed the battery showing green as soon as I get in the car. Drive a bunch on a warm(er) day, and if it's colder the next day, the battery shows a bit lower than expected. Relatively steady temps from day to day? Totally normal battery levels.
Dramatic temp changes will affect the charge. I see all bars frequently in all weather based on regen.
Where I live and drive it is slightly hilly. Typically the change in elevation isn't more than 400 feet and that is over 7 miles. Going uphill it only rarely shows all green bars and going downhill it gets there rapidly and tends to stay there. So I see all green bars pretty much every day, but not all day. It doesn't take much of an elevation change to see this effect.
