Key Fob Battery

[RIderInTX]

Another deal I came across. You can get the Renata 1225 (this is the one recommended by smart) battery for $1.79 if you buy 10 of them at a time. My total cost was $17.91 plus $1.99 shipping for a grand total of $19.90. They are fresh too (expire 10/2013).

I have four keys so this is a good deal for me because I can use them up. If want less than 10 they are $1.99 each plus a single shipping fee of $1.99. Contact them at swatchbattery.com

Again, no interest in company, just sharing my bargain hunting experience with all the rest of the smart people out there!

Bill
Corpus Christi, TX

[John_H]

There are CR1225 batteries. There are CR2016 batteries. My smart manual suggests a CR2016 is the correct replacement battery and doesn't specify a brand.

Do you drive 450s?

Ah! In another thread you just spoke of G&K cars. You do drive 450s!

The battery requirements for the 451s (the new smarts from SmartUSA) are different.

[Kermit]

I've only had to replace 2 batteries out of 6 fobs. (4 for my cars and 2 for my parents car). Seems they die a whole lot quicker when you don't use the key.....or at least bring it near the car. My wife always has both her keys while my mother doesn't keep hers. I had to replace hers as it never goes in the car. My fob I just replaced the battery because I could.

I used a 2016 for it. Like the manual said. I hope you got the right battery. Sounds like it....450.

[Fernblatt]

The CR1225 and CR2016 are two different in both size and spec. The 1225 is 12mm diameter, while the 2016 is 20mm.

My 450 -- 2006 CDI Cabrio -- uses the CR1225 in it's key fob.

[JohnnyM]

Can someone explain why the fob battery needs to be replaced so often? The keyfobs from all my GM cars have lasted sometimes more than 10 years.
I guess I don't understand exactly what the fob does

[John_H]

They don't need to be replaced so often. They just get replaced so often. (Unless you've actually experienced the battery running down.) I was surprised the replacement was part of the 20k service.

The smart's light flashing upon lock will go to 9 flashes according to the manual when the key fob battery is low, giving another hundred or so uses before it's dead.

[chieftmc]

Originally Posted by John_H

They don't need to be replaced so often. They just get replaced so often. (Unless you've actually experienced the battery running down.) I was surprised the replacement was part of the 20k service.

The smart's light flashing upon lock will go to 9 flashes according to the manual when the key fob battery is low, giving another hundred or so uses before it's dead.

Will the alarm then give 9 beeps also ???

[John_H]

The manual said nothing about the beeps from the alarm, only that the 9 flashes would occur. I had an eye toward this as well, but saw no mention.

[chieftmc]

Originally Posted by John_H

...I had an eye toward this as well, but saw no mention.

I too saw no mention............... thought you might have some "first hand" experience

[cfreidma]

That explains why the smart batteries I bought are too big. Say, I have 2 20mm 451 batteries if anyone wants them.