This applies to the majority of coin and button cell batteries but note there are some exceptions, like the CR2 or CR123A batteries which are considered lithium cylindrical batteries. So by following this, you can easily see that a CR2032 battery is a (C) lithium chemistry battery with a (R) round shape that has a diameter of (20) 20 millimeters and a height of (32) 3.2 millimeters. The first two numbers let you know the diameter of the battery and the last two numbers tell you the height. The R lets you know that the battery is round in shape. The C in CR lets you know the battery uses a lithium chemistry. *MicroBattery Pro-Tip (Understanding Lithium Coin Batteries): Lithium coin cell batteries are usually designated with a CR followed by a set of numbers. There are many different types of batteries, make sure that you get the correct letters (Normally CR) and the correct numbers. An example of this would be: CR2016 or CR1616. This number, which is usually three to four digits long, will identify the type of battery you’re looking for. One thing about button cell batteries is that they have an identification number printed right on the top. HOW DO I KNOW WHAT BATTERY MY KEY FOB TAKES ? Third Sign: Key Fob not working could be caused by the battery being dead.Ĭlick Here to View How To Replace Install Battery Car Key Fob Remote Easy Simple Second Sign: Over-Clicking, a key fob should only take one click to unlock doors. SIGNS YOU NEED TO REPLACE YOUR KEY FOB BATTERIESįirst Sign: Worsening signal, you used to be able to open your car from the inside of your house and now you have to be up close to your car for the door to be able to open. To purchase key fob batteries please click here To view this article in Spanish please click here IT IS VERY IMPORTANT TO MAKE SURE THAT YOUR KEY FOB BATTERIES WORK, YOU DON’T WANT TO GET STUCK OUT IN THE RAIN NOT BEING ABLE TO OPEN YOUR CAR. When is it time to change your key fob battery?
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