Starter Battery

Just HAVE to stir the pot, don't you.

It doesn't have to be an exact replacement.
It just has to have a similar capacity and be able to fit in the allotted space.

 

Any specific model you have tried or known to work? When I look for replacement parts including a battery, I usually rely on the information given by the vendor. If it is not an exact fit, the parts will be listed as "this parts will not fit your vehicle". That makes most people looking for a replacement part to look away. Knowing information on the size and spec of the AGM battery used by someone successfully replacing the OEM 140R flooded battery would be very helpful.

 

Without endorsing the idea that an AGM battery is more suitable than the flooded (wet-cell) type installed by Toyota, I’ll note that ACDelco offers an AGM battery, mentioned previously, in the same LN1 (also called H4 or 140R) case size as the original.

 

Thanks for the info. That's a very reasonable price. I will try to remember when and if I need to replace the OEM battery... Oh wait, I don't own PP anymore. LOL

Just for information for others. Here was your quote:

 

I need to replace the 12v in my 2017 Prime Advanced. Aside from getting the proper 140r battery stated in this thread , are there any self Installation procedures i need to be aware of. Local kansas city toyota dealer quoted me $390 installed!

Posted via the PriusChat mobile app.

 

There are a few initializations you must perform after removing the 12v battery, but otherwise, it should be straightforward as just removing the old one and replacing it with a new one. At the $390 quoted price, the dealer is making over $300 pure profit for less than 10min of work.

 

Thanks, how about my beloved Radio/Satellite presents, will changing the battery affect the presets? Will I need to register/mess with the Satellite account? Will the Navigation settings and saved locations remain?

$390 to install the battery is a bit much.

As an aside, my previous ride was a 2007 Prius, the Headlight went out after about 70,000 miles, and the local Toyota dealer wanted $550 to replace the headlights. Years ago someone on this forum heard this and said they would put the bulbs in if I bought the bulbs, his skinny nimble fingers did the work in about 5 minutes. Toyota wanted to take half of the front end apart to get to the headlights, probably in the service bay they would use the skinny hand technique as well.

Appreciate the response!

 

I have not done a 12v battery swap on my PP, so I am not 100% sure, but I have read somewhere that said about Radio/Satellite presets being reset. The account setting should not be affected I believe. Navigation setting also should be OK, I think it is written on non-volatile memory. But I am not sure. One way to avoid loss of memory during the 12v battery disconnect is to use a memory savor like the one discussed in this thread. Saving memory settings when replacing the 12 volt battery? | PriusChat It is connected vis OBDII and to an external 12v power source providing continuous power to the car's ECU after the 12v is removed. Sure less expensive than the $390 quoted by the dealer.

BTW, the headlight on the PP is much more expensive than the $550 you had to pay for your 2007 Prius. It has no replacable bulb. You must replace an entire LED headlight assembly, a $1640 MSRP parts. So, try not to break it.

 

There are memory savers that use a 9volt battery. Should work as the memory should not be a big draw. Use one that connects to the battery cables. Since the 12v outlet is shut off with the car, those type likely won't work.

 

Is there something like this I can buy, and from where? My 12v is 3.5 yrs old and is beginning to give hints that it is about to go.

Or is this simply something I can make by using an alkaline 9v, wired snap cap and long R and B wires that clamp to the + red and the - black 12v battery cables while I pull out and replace the car's 12v?

 

@Salamander_King link lists some, and one is a 9volt model. I've stumbled across them on Amazon.

 

Yeah you can do an end-run ‘round memory loss, with a saver. That said, it’s been surprisingly trivial, at least on our 3rd gen, to bounce back after a disconnect, which I do as a precaution before brake work.

When I do use memory saver, it’s one of these:


And:

 

I got mine at the local auto parts store. So far, I haven't needed to use it. But with a 4-year old battery in the FL heat, there's a fair chance I'll get to use it in a year or two.

 

What did you get? All I can find is the cig. lighter type. But both F and R cig. lighters are switched off when the car is turned off, which would be the case when swapping 12v batteries.

 

It's a Schumacher SEC-12V-OBD. It has an OBD connector on one and and a 12V "lighter" plug on the other that you plug into the socket of a 12V power supply. If you don't have a socket-equipped PS, it's simple to clip alligator leads to it.

 

I recently replaced my battery and talked to a Toyota tech about using a battery saver. He strongly advised against it saying the Prime's and other hybrid's electronics after different than traditional cars.

He mentioned there was a risk of damaging an ECU. I didn't really understand the reason why, but didn't use the battery saver to be safe. Wasn't worth the risk for me.

 

Note the indicator light. This will light to confirm you’ve got solid and on 12 volt connection after plugging into OBD. Some have the light at both ends, so you can confirm OBD and jump pack ends are good, have 12 volt. But one ends enough really; the main thing is to confirm OBD end has 12 volt.

 

Humm, this is the first time I have heard/read such a claim. I have not had to do any battery replacement on my PP, so have not had a chance to use the memory saver and external 12v power source on PP or on Gen3 but I am interested in hearing/reading what others have experienced.

 

Hmmm. The last I knew, they all run on 12 volts.

In fact, that light is actually in the instructions that came with the gadget.

I share your interest since I haven't needed mine yet either.