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Car Key FOB Replacement Battery Guide

Posted on February 4, 2021 by tacomacityrunningclub

Most modern cars these days utilize a remote keyless entry or key fob to access the vehicle. Unfortunately over time these key fobs get knocked around from day to day activities and eventually need replaced. Sometimes water damage is enough to short circuit them so they are no longer operable. If you need a replacement battery for your key fob then read on. In our guide we are going to list the most common batteries and also the best value batteries as a replacement. Those name brand battery replacements can get really expensive when a lesser known brand will suffice just fine.

A popular battery for key fobs is the CR1632 battery. Lexus uses CR1632 batteries for most of their vehicles as do many other manufacturers. It is a hard to find battery and as such car dealerships will mark it up 5-10x it’s actual cost. Then charge you to put it in your key fob! The easiest solution is to work out how to replace the battery yourself and source it from another source. An energizer CR1632 will cost $3-4 whereas an offbrand like PKCELL will cost less than $1 and perform equally. I had great success ordering them in bulk from gadgetsandbatteries.com but many other online vendors will have them at reasonable prices.

The most common replacement battery for key fobs is the CR2032 battery. For example it is used for the toyota Corolla 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2021 and 2021. OtherToyotas like the Camry, 4Runner, Matrix, Yaris, Prius, Venza, Avalon, FJ Cruiser, Sienna, RAV4, Highlander, Sequoia, Tacoma and Tundra use the same battery. Many other model of cars key fobs use the same battery. The CR2032 battery is called DL2032 by duracell and may be called many other names by different manufacturers but if the diameter is 20mm and height is 3.2mm then it is likely a CR2032. Energizer offers this battery at around $3 each and often marked up triple or more by car dealerships. Do yourself a favor and purchase a lesser brand like PKCELL. With exactly the same specifications and a matching capacity and a price point of less than $1 each or even less if you buy them in bulk. Bottom line is don’t pay car dealership prices for your CR2032 battery when an off brand will suffice just fine.

In conclusion it is best to source your own car key fob batteries. Don’t line the car dealers pockets and instead replace your own battery. Brands like PKCELL and Eunicell are just as good as the name brands and can be found at a fraction of the price of name brands. Guides to replace your car model key fob battery can be found online and a quick youtube search will turn up a guide for just about any vehicle. Just use the search term “Car model and year” + “key fob battery”. For example “Bmw 528i 2014 key fob battery”. Just replace the model and year with your own.

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