Battery life on '03 Prius?

gene4655 · 10-19-2007, 12:02 PM

My wife drives an '03 Prius. It is nearly five years old now, with only 37,000 miles on it. My question is: how long does the battery usually last (the regular battery, not the big power one up front)? Should I go ahead and replace it now, or wait til it plays out?

brentmeister · 10-19-2007, 06:21 PM

<div class='quotetop'>QUOTE(gene4655 @ Oct 19 2007, 11:02 AM) [snapback]527764[/snapback]</div>

Quote:

My wife drives an '03 Prius. It is nearly five years old now, with only 37,000 miles on it. My question is: how long does the battery usually last (the regular battery, not the big power one up front)? Should I go ahead and replace it now, or wait til it plays out?
[/b]

You are way past due- I would head down to your local discount club and have it replaced before you guys get stranded someplace. That's my .02...

Brent

kenmce · 10-19-2007, 07:36 PM

I think of five years as being a reasonable life expectancy for a 12 volt lead-acid car battery. It will be going dowhill from here.

prim2 · 10-22-2007, 04:31 PM

It seems to me that five years is about normal in a conventional car, but the 12v battery in a Prius doesn't do any of the engine cranking that it would in a conventional car. Running relays and computers shouldn't be nearly as taxing. I'd have it checked. You may get significantly more life out of it.

Cheers,

Geoff

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10-19-2007, 12:02 PM	#1
gene4655 Member Join Date: Oct 2006 Posts: 46 My Car: Model: Package: Thanks: 1 Thanked 1 Time in 1 Post Friends: 0	My wife drives an '03 Prius. It is nearly five years old now, with only 37,000 miles on it. My question is: how long does the battery usually last (the regular battery, not the big power one up front)? Should I go ahead and replace it now, or wait til it plays out?

10-19-2007, 07:36 PM	#3
kenmce High Voltage Member Join Date: May 2004 Location: terra Posts: 671 My Car: 2004 Prius Model: Package: #8 Thanks: 13 Thanked 33 Times in 29 Posts Friends: 0	I think of five years as being a reasonable life expectancy for a 12 volt lead-acid car battery. It will be going dowhill from here.

10-22-2007, 04:31 PM	#4
prim2 Member Join Date: Oct 2007 Location: Toronto Posts: 64 My Car: 2008 Prius Model: Package: B Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	It seems to me that five years is about normal in a conventional car, but the 12v battery in a Prius doesn't do any of the engine cranking that it would in a conventional car. Running relays and computers shouldn't be nearly as taxing. I'd have it checked. You may get significantly more life out of it. Cheers, Geoff