Need New 12V Battery And One Other Unique Question

Sorry, I had the local dealer replace the 12v when it went on my Gen II last year. Darn costly, but nothing much I could do.

 

12 years out of a battery!! Unbelievable it is.

 

welcome to priuschat! there are a number of batteries available for the gen II. try searching the gen I forum for suggestions. all the best!

 

How much did that set you back!

 

they can be $3-400. installed, but you can buy them as cheap as $150. and install in half an hour.

 

ah shucks - i was gonna say 200 clams
looks like that was LOW

 

I went to Wal*Mart a little over a year ago and bought an EverStart 26R-3. It's a good fit and needed no modifications. Cost was a little over $70.

 

Nice ...
part #, price and a pic

 

This is a copy/paste from my reply in another thread....​

When I replaced my 12v battery in my 2001 a while back, I just went into Autozone with my stock battery's measurements and ended up finding a Duralast 8AMU1R. Their web site says it doesn't fit the Prius, but with minor tweaks, it works fine. I believe it is actually for a Miata. They list it at about $125. It is a vented AGM battery with about the same length and width as the stock battery, but slightly shorter. Its fits easily in the space, but I needed to use a wood spacer so the hold-down clamp would cinch up tight and hold it in place. Also, it uses standard size terminals (but in the correct locations). This is a pretty easy fix also because the entire negative cable can easily be replaced, and the stock positive clamp bolts onto the end of the factory cable, so you can just replace the clamp. Here are the battery's specs from Autozone's web site:

Product Details

Part Number: 8AMU1R
Weight: 24.0 lbs
Warranty: 5 YR
Notes: Warranty consists of 3 years free replacement plus 2 years prorated. *** 370 Cold cranking Amps (460 cranking Amps) ***. 45 reserve minutes. Check the customer's vehicle, battery installation could take up to 30 minutes. Battery located in trunk. Special 12-volt: 9 3/4" x 5" x 7 1/2". Battery is vented to outside of vehicle (AGM)
Application: Automobile
BCI Cold Cranking Amps (CCA): 370
BCI Cold Cranking Amps Value: Tested to BCI Standard
BCI Designation: U1
Battery Height: 186 mm - 7 5/16 in
Battery Length: 197 mm - 7 3/4 in
Battery Width: 132 mm - 5 3/16 in
Core Charge Applicable: Yes
EN / DIN Designation: Not Applicable
JIS Designation: Not Applicable
Positive Terminal Side: Right
Post Location: Top Post
Reserve Capacity (min): 45
Voltage: 12
MSDS Information: Click to View​

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$270.

 

Just replaced 12V battery in my 01 Prius with 230K miles. Went to Battery Warehouse and they had FVP51-4A battery. Bought and replaced mine. This battery is larger than the original one. Had to remove left and right side brackets and used new positive terminal and negative cable since posts are regular battery size. Vent tube hole in new battery was smaller than original battery. Was able to use existing tube with little mod. The battery was $76 with 1 yr replacement and 5 yr prorated warranty.

 

I just put a garden tractor battery in about 4 years ago and I haven't worried about it yet.
I had an unrelated problem this week and swapped in an Odyssey battery and it was no different.
The drawback is the lack of a vent tube, but I figure that after 12 years a little corrosion in the trunk will not be a show stopper. So far no corrosion and no problems.

 

I don't think the Odyssey AGM battery does much venting, unless you are deep-cycling it.

 

An AGM should not vent under normal use. It will only vent by being abused with incorrect charging.