Gen 2: List of recommended related parts to replace when (using OEM) replacing HV battery

fwiw:
replacing-the-hybrid-battery-with-a-new-toyota-battery.183889

 

If you're doing the OEM battery replacement, one of your concerns will be the battery ecu. Your new OEM battery will have a new "wire frame #2", but frequently the ecu has significant corrosion on the socket pins where the WF#2 is inserted.

Also give the cooling fan a good cleaning while you're in there.

You'll also see a set of wires near the cooling fan bracket with a plug and socket. That plug and socket often develops corrosion on two of the pins and is typically very obvious. Now would be a good time to just cut the wires on each side of the plugs and splice them together. I've done it on all my Gen 2s and many customers.

 

I am getting a new battery!

 

Can someone confirm that new oem batteries come without the two rubber vent tubes?

 

Yes confirmed, they do not come with new vent tubes. You reuse the old ones.

If they are smelly, you can fashion replacements from some silicon tubing. I think some people might even leave them off entirely if they were smelly, gooey or otherwise objectionable.

 

Thanks. I notice you are in New Zealand... assuming this will be the case in the US too. I'm very familiar with the smelly vent tubing issue - I replaced mine with silicone tubing shortly after I bought my car.

 

As far as I am aware the back end is identical.

Nice.