Toyota Forum banner

Battery Registration After Replacement?

1 reading
12K views 17 replies 8 participants last post by  Deezell  
#1 ·
On the 8th generation Camry has anyone bothered to do a "registration" of a new battery -either an EFB or AGM- after a new battery replacement? Has anyone reset the Battery Monitor Sensor after a new battery replacement? The Car Car Nut in a video said "registration" is required after replacing a Toyota battery but there is a lot of controversy about this. There are lots of YouTube videos showing both 8th gen Camry and 5th gen RAV battery replacements with no mention of "registration." Lots of new Fords and VW, Audi, BMW do need a reprogram or reset of the Battery Monitor or a registration. Has anyone here replaced their own battery in a newer Toyota without registration? How did it work out--any problems?
 
This post has been deleted
This post has been deleted
#10 ·
I'm sure Techstream can do almost anything on an 8th gen Camry. Most of the more expensive scan tools also do BMS resets/registrations.

See the DIY link posted on this website.
No link?

In which video did CCN say this?
At about 12 minutes on this video Car Care Nut says to do registration on a battery replacement on Toyotas.
 
#13 · (Edited)
#15 ·
#17 ·
Thanks for that great link. Here is the official Toyota Technical Information System (TIS) battery replacement instructions for the 5th generation 2020 RAV4 (basically the same as 4 cylinder 8th gen Camry with regards to the charging system). Though it mentions "registration" there is actually NO BATTERY REGISTRATION REQUIRED in those instructions for battery replacement. It says the auto stop/start system needs to be "INITIALIZED" by just driving the car for several minutes until it starts to work. Also there is NO mention of any of that "non-dedicated battery" setting using Techstream like in the Highlander link. It just says you can use any battery of the correct dimensions and specified amp hours (Ah). There is no prohibition or discussion about whether you can interchange an EFB or AGM.
 

Attachments

#18 ·
I've had similar levels of confusion with the need for registration, and actually identifying the correct replacement battery on a 2018 Lexus LS H, with the 3.5 petrol hybrid engine. Virtually every battery chooser site says AGM, probably because the car has stop start, but this is a hybrid motor controlled stop start, the 12v battery is not involved in cranking.
The original battery from 2017 manufacture proved very difficult to identify, it was a Yuasa wet battery with some Toyota lsbels, not an AGM I was certain. It had a dead cell, and I've replaced it temporarily with a January 2015 AGM that came from an A6 Quattro. This elderly battery is working away without throwing fault codes, which the dead cell battery exhibited occasionally.
The 12v battery is only used to initialise the Hybrid system, which generates a 14.1v supply to the ecu and maintenance voltage to the 12v battery. This voltage will happily maintain an AGM, it might be a tad high for a standard wet battery.
I suspected the original might be an EFB or Calcium, and a few days ago Yuasa UK confirmed it as a Calcium plate lead acid. I'm happy that this battery type will not require any special charge management, the maintenance voltage measured is in the range for calcium types, similar to AGM. There is nothing to register once you replace with the same original physical type and size.
With AGM SST cars it is important, as the charging characteristics are adjusted with battery age, and the BMS needs to know when the battery is new,even if size and type are identical, to avoid overcharge and shortened new battery lifespan.