Emma Louise

Checking the voltage of a CR2032 battery before you use it is a simple step that can save you from headaches. It matters because a battery that looks fine might not have enough power to run your device properly. A brand-new CR2032 battery should read around 3.0 volts on a multimeter, but I’ve found many … Read more

7 best CR2032 lithium coin battery for apple airtag If you own an Apple AirTag, you already know the pain of that “Low Battery” notification hitting at the worst time. The AirTag uses a CR2032 lithium coin cell, and not every battery on the shelf actually works well with it. I’ve tested a bunch to … Read more

7 best CR2032 lithium coin battery for subaru key fob Nothing ruins a morning faster than your Subaru key fob dying at the worst possible moment. I’ve been there — standing in a parking lot, pressing the button, getting nothing. Finding the right CR2032 lithium coin battery for Subaru key fob is surprisingly tricky because … Read more

7 best CR2032 lithium coin battery for car remote I’ve been through that frustrating moment when your car remote stops working at the worst possible time. Finding the best CR2032 lithium coin battery for car remote use isn’t complicated, but you need one that actually delivers consistent 3V power and holds up over time. After … Read more

You put a fresh CR2032 battery in a device, set it aside for months, and find it dead when you need it. This frustrating problem happens to everyone who uses small electronics. The culprit is often internal self-discharge, a natural chemical process inside every lithium coin cell. Even without a device, these batteries lose 1-2% … Read more

7 best CR2032 lithium coin battery for led tea lights Nothing kills a cozy tea light display faster than batteries dying after a few hours. If you’re stocking up on the best CR2032 lithium coin battery for LED tea lights, you need cells that deliver steady 3V power and actually last. I tested dozens of … Read more

I’ve noticed my AirTags seem to chew through CR2032 batteries way faster than expected. If you’re seeing that low battery warning pop up every few months, you’re not alone. Apple says the battery should last about a year, but real-world use often tells a different story. Cold weather and frequent precision finding requests can drain … Read more

We all want to save money on batteries, but nobody wants their remote to die mid-movie. That is the real question when you see cheap CR2032 cells next to the premium Energizer brand. I have tested many no-name lithium coin cells and found they often leak voltage faster than a name brand. The Energizer uses … Read more

I often get asked if a CR2032 lithium coin battery is the same size as a plain 2032. This matters because using the wrong battery can damage your device or cause it to not work at all. The short answer is yes, they are physically identical in size. The “CR” simply tells you the battery’s … Read more

You are likely holding a strip of CR2032 batteries and wondering how to separate them without causing damage. Getting this right is important because a short circuit or dent can ruin a perfectly good battery. I have found that the plastic housing is designed to be twisted, not cut with scissors. A simple twisting motion … Read more