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Push Button Start-Key Fob #4757650
05/15/18 07:35 AM
05/15/18 07:35 AM
Joined: May 2005
Posts: 10,778
ROCHESTER, NY
Char Baby Offline OP
Char Baby  Offline OP
Joined: May 2005
Posts: 10,778
ROCHESTER, NY
Just an FYI!

So, I have been replacing my key fob(s) batteries about every 1.5 yrs or SOONER!
This seems to be common(from my online searching) with vehicles that have push button start(PBS) and maybe remote engine start(RES) as well(any make/model).

My car has both PBS & RES. However there are other vehicle(any make/model) that replace their batteries much less often. This leads me to believe that there IS NO PROBLEM with my key fob(s) but, that there are some better key fob units than others in this situation.

These PBS/Key Fob units are like a cell phone as they're always searching for a signal. I have tested the NEW 3.0v battery and they measure ~ 3.1v-3.3v. And when the batteries seem to get < 2.9v, they vehicle doesn't recognise the key fob(NO KEY DETECTED) and the vehicle won't start.

My Point?
Yes, there is a procedure for starting the engine should this happen but, what I have resorted to doing is, keeping an extra battery in the cup holder as the batteries are 2pk for $1 at most Dollar Store/Dollar General...way le$$ money than other stores. And these dollar stores carry most battery #'s as well as many watch batteries and C & D cell, AA/AAA batteries...as most of you already know.

Just my tip for the day,

CB

Last edited by Char Baby; 05/15/18 07:36 AM.

"Retired"
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic LX
Re: Push Button Start-Key Fob [Re: Char Baby] #4757657
05/15/18 07:40 AM
05/15/18 07:40 AM
Joined: Jun 2002
Posts: 12,731
The Motor City
Kestas Offline
Kestas  Offline
Joined: Jun 2002
Posts: 12,731
The Motor City
Could the quality of the new battery factor into its life?

Re: Push Button Start-Key Fob [Re: Char Baby] #4757661
05/15/18 07:46 AM
05/15/18 07:46 AM
Joined: Oct 2010
Posts: 1,836
.
Danh Offline
Danh  Offline
Joined: Oct 2010
Posts: 1,836
.
Keyless does do have a shorter battery life for sure, but 1.5 years does seem on the low side. Where do you store you fobs when not in use? If they are close to any electric device (television, computer, radio, etc.) they can stay on in anticipation of something exciting happening. Moved the key rack in our house for this reason.

Re: Push Button Start-Key Fob [Re: Kestas] #4757667
05/15/18 07:50 AM
05/15/18 07:50 AM
Joined: Nov 2004
Posts: 7,833
Texas
GMBoy Offline
GMBoy  Offline
Joined: Nov 2004
Posts: 7,833
Texas
Originally Posted By: Kestas
Could the quality of the new battery factor into its life?


My thoughts as well. If he is using dollar store batteries I would surely try a quality Energizer or equivalent and see if they last longer. I average 2 years on my keyless fobs.

Re: Push Button Start-Key Fob [Re: Danh] #4757697
05/15/18 08:08 AM
05/15/18 08:08 AM
Joined: May 2005
Posts: 10,778
ROCHESTER, NY
Char Baby Offline OP
Char Baby  Offline OP
Joined: May 2005
Posts: 10,778
ROCHESTER, NY
Originally Posted By: Kestas
Could the quality of the new battery factor into its life?


Even the OE and a second FREE replacement(Panasonic) from the dealer lasted the same in both fobs.

Originally Posted By: Danh
Keyless does do have a shorter battery life for sure, but 1.5 years does seem on the low side. Where do you store you fobs when not in use? If they are close to any electric device (television, computer, radio, etc.) they can stay on in anticipation of something exciting happening. Moved the key rack in our house for this reason.


My wife keeps her fob in her purse and I keep mine in the kitchen cupboard. Yes, they could be next to our cell phones while we're out. And yes, we do use our labtop at the kitchen table when not eating. Also, like most homes, we have Wi-Fi, which could cause the battery to run down. IDK!

My Nissan owner's manual states that overhead electrical wires on the highway(or otherwise) could also cause interference or signal search, lowering the life of the battery. The OM states the battery life in this NISSAN could be ~ 2+ years, maybe longer depending on usage & location.

I did try an Eveready & Duracell previously. Currently using the dollar stores Sunbeam 3.0v.

Though I am not looking for a solution to this issue, I do like the tips of keeping the fob away from other electronic devices. Also, I just wanted to state an FYI for anyone who has the same issue, to keep an extra battery handy in the vehicle...glove box, console, cup holder etc. smile

CB

Last edited by Char Baby; 05/15/18 08:17 AM.

"Retired"
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic LX
Re: Push Button Start-Key Fob [Re: Char Baby] #4757710
05/15/18 08:17 AM
05/15/18 08:17 AM
Joined: Aug 2003
Posts: 13,237
NE,Ohio
Rand Offline
Rand  Offline
Joined: Aug 2003
Posts: 13,237
NE,Ohio
what battery does this take cr2025?


2019 Jeep Cherokee Trailhawk 2.0T
Re: Push Button Start-Key Fob [Re: Char Baby] #4757712
05/15/18 08:18 AM
05/15/18 08:18 AM
Joined: May 2005
Posts: 10,778
ROCHESTER, NY
Char Baby Offline OP
Char Baby  Offline OP
Joined: May 2005
Posts: 10,778
ROCHESTER, NY
CR#2032

Last edited by Char Baby; 05/15/18 08:21 AM.

"Retired"
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic LX
Re: Push Button Start-Key Fob [Re: Char Baby] #4757755
05/15/18 08:46 AM
05/15/18 08:46 AM
Joined: Sep 2011
Posts: 3,418
Somewhere
itguy08 Offline
itguy08  Offline
Joined: Sep 2011
Posts: 3,418
Somewhere
Wow - we must be lucky as you know what.

The Taurus, bought new in 2009 and has been my DD, has pushbutton start and I think I've changed the battery in it twice. It does have the standard entry, not the touch the handle and it opens kind.

The wife's Escape, bought in 2015 and is her DD, has pushbutton start and the handle entry thing and we've not replaced the batteries yet.

Wonder if it has to do with our usage patterns - drive to work and home 5x a day and then some on the weekends. I do replace with Energizer or Duracell though.

On another note, check your owner's manual - most (if not all) cars with PBS have a spot to hold the dead key to at least start the vehicle. It may be hidden though - the Taurus has it buried in the center console.

Last edited by itguy08; 05/15/18 08:48 AM.
Re: Push Button Start-Key Fob [Re: Kestas] #4757761
05/15/18 08:51 AM
05/15/18 08:51 AM
Joined: Dec 2016
Posts: 2,259
MURICA
maverickfhs Offline
maverickfhs  Offline
Joined: Dec 2016
Posts: 2,259
MURICA
Originally Posted By: Kestas
Could the quality of the new battery factor into its life?


Same thoughts from me, I bought some off of fleabay and after a few months now they are almost dead. In my case, no push start either.

I am also in the market to buy some quality replacement batteries....


2006 Civic EX 205K/AT
2006 Acura TSX 187K/AT
Re: Push Button Start-Key Fob [Re: Char Baby] #4757765
05/15/18 08:59 AM
05/15/18 08:59 AM
Joined: Apr 2017
Posts: 1,495
Ontario, Canada
mightymousetech Offline
mightymousetech  Offline
Joined: Apr 2017
Posts: 1,495
Ontario, Canada
Buy better batteries. Mine last at least 4 years before I get a warning the battery is low.


Mighty Mouse Tech
BMW Tech, Former Acura Tech
2010 Civic Si Castrol 0W40, Redline MTL
2013 BMW 135i M Sport Edition Castrol 0W40, Redline MTL
Re: Push Button Start-Key Fob [Re: Char Baby] #4757770
05/15/18 09:01 AM
05/15/18 09:01 AM
Joined: Jun 2005
Posts: 3,469
Massachusetts
deven Offline
deven  Offline
Joined: Jun 2005
Posts: 3,469
Massachusetts
The worst was my 2010 MB E350 whose battery would die every 6 months. The best was my dad's Lexus. That battery would last over 2 year. I just buy the batteries on Amazon where you can get a 20 pack for less than $5. Make sure to read reviews because some people on Amazon do sell knock offs there.


Proud user of ROYAL PURPLE products!

2016 Acura RLX Sports Hybrid(Royal Purple HPS 5w30 + M1-110 oil filter)

KEEP IT SIMPLE STUPID. IT'S ONLY OIL
Re: Push Button Start-Key Fob [Re: Char Baby] #4757814
05/15/18 09:54 AM
05/15/18 09:54 AM
Joined: Jan 2018
Posts: 75
Missouri
David2431 Offline
David2431  Offline
Joined: Jan 2018
Posts: 75
Missouri
We're new to Fobs, having just acquired a 2014 RAV4 with one. The Toyota parts guy gave some advice:

1) Keep the FOB away from the vehicle when it is parked. IE: don't store the FOB in close proximity to the car like stored in a garage cabinet, as the car and FOB will constantly try to "connect" and the FOB battery will drain.

2) If the FOB battery is low you can still start the vehicle if you hold the FOB close to the "Start" button on the dash. Our FOBs have small door keys to physically open the door in case of battery failure.

3) I wouldn't have purchased a "FOBed" vehicle, but it was our daughter's and they needed to drive a larger vehicle and I knew its history.

Re: Push Button Start-Key Fob [Re: deven] #4757815
05/15/18 09:55 AM
05/15/18 09:55 AM
Joined: May 2005
Posts: 10,778
ROCHESTER, NY
Char Baby Offline OP
Char Baby  Offline OP
Joined: May 2005
Posts: 10,778
ROCHESTER, NY
Originally Posted By: deven
The worst was my 2010 MB E350 whose battery would die every 6 months. The best was my dad's Lexus. That battery would last over 2 year. I just buy the batteries on Amazon where you can get a 20 pack for less than $5. Make sure to read reviews because some people on Amazon do sell knock offs there.


Thank you but, I think I'll just get'em at the dollar store for .50c/pc(2/$1) and just get'em when I need'em.

Until now, I have never, ever had to replaced a key fob battery even if I kept the vehicle for 15-16 years but, these other vehicles didn't have push button start. My '15 Altima also has factory remote engine start(RES) which may contribute to the cause...always searching for a signal!

Last edited by Char Baby; 05/15/18 09:56 AM.

"Retired"
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic LX
Re: Push Button Start-Key Fob [Re: Char Baby] #4757819
05/15/18 10:00 AM
05/15/18 10:00 AM
Joined: Mar 2017
Posts: 7,033
...
PimTac Offline
PimTac  Offline
Joined: Mar 2017
Posts: 7,033
...
The newer proximity fobs go through batteries. A year and a half is generally good life.

Amazon sells a lot of repack batteries. While the picture may show a factory sealed package, many buyers report getting batteries in individual zip lock baggies.


Cannot see signatures any longer so it doesn’t matter.
Re: Push Button Start-Key Fob [Re: Char Baby] #4757829
05/15/18 10:10 AM
05/15/18 10:10 AM
Joined: Dec 2003
Posts: 9,980
Florida, Cape Coral
Eddie Offline
Eddie  Offline
Joined: Dec 2003
Posts: 9,980
Florida, Cape Coral
Lasts two+ years with my Mazda CX5 using a fresh Name brand battery. If the battery is so low it will not start the vehicle, I can just touch the fob to the start button and go. Ed


CX5 Touring 2.5L :-)
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