Emma Louise We all rely on LR41 batteries for small devices like watches and laser pointers. Knowing if your battery is about to die can save you from sudden failures and frustration. A simple voltage test with a multimeter gives you a quick snapshot of remaining power. However, a battery showing correct voltage can still fail under … Read more
PKCELL CR2032 20-Pack Coin Battery Review I was tired of my car key fob dying at the worst possible moment, so I grabbed a 20-pack of PKCELL CR2032 Batteries 20-Pack High Capacity 2032 Battery CR2032 Lithium 3V Coin Battery, Compatible with Key Fob, Tea to keep spares handy. With a 210 milliamp-hour capacity and a … Read more
Powermax ACDelco CR2032 24-Count Battery Pack Review I always seem to run out of CR2032 batteries right when my key fob dies or my AirTag goes silent. That’s why I grabbed the Powermax ACDelco 24-Count CR2032 Batteries pack, which gives you 24 lithium 3V coin cells with a solid 220 milliamp-hour capacity each. This pack … Read more
Voniko vs PoundMax vs YFCN CR2032: Best Budget Batteries for AirTag? If you’re like me, you hate spending more on a battery than the device it powers. I tested three of the cheapest CR2032 options out there: the Voniko 6-pack, the PoundMax 5-pack, and the YFCN 5-pack to see which one gives you the most … Read more
You check your thermometer and see the dreaded low battery warning. An LR41 button cell should last a long time, so it is frustrating when it fails early. Why this happens saves you time and money. Temperature extremes are a common but overlooked cause of voltage drops in LR41 cells. A thermometer in a cold … Read more
You rely on your car’s key fob every day, so it’s frustrating when it suddenly stops working with no warning. Why your vehicle doesn’t alert you before the LR41 battery dies helps you avoid being locked out. Most cars only check the fob’s battery voltage when you press a button, not continuously. This means the … Read more
Amazon Basics CR2032 3V Lithium Coin Cell Review I’ve been through way too many dead key fobs and blinking AirTags to count, so when I needed replacements, I grabbed the Amazon Basics CR2032 3V Lithium Coin Cell Batteries, Child-Proof Package, Non-Coated, AirTag Compatible, 4-Pack. With a 225 mAh capacity and 3 volts, they promised solid … Read more
Energizer 2032 4 Pack 3V Lithium Coin Review I recently needed a fresh set of batteries for my car’s key fob and a couple of medical devices, so I grabbed the Energizer 2032 Batteries (4 Pack), 3V Lithium Coin Batteries. With a 240 milliamp-hour capacity and the ability to work in temperatures from -22 to … Read more
YFCN vs KITOSUN vs Tenergy CR2032: Best 10 Pack Coin Cell Battery? If you’re grabbing a 10-pack of CR2032 batteries for your AirTag or car key fob, the choice usually comes down to YFCN, KITOSUN, or Tenergy. I’ve tested all three to see which one actually delivers the power it promises and which one is … Read more
KITOSUN CR2032 10-Pack Coin Batteries Review I was tired of my car key fob dying at the worst possible moment, so I grabbed a pack of KITOSUN CR2032 Batteries 3V Lithium Cell – 10Pcs 3 Volt CR 2032 Coin Button Lithium Battery Replacement for Apple Airtag to keep spares on hand. Each cell packs 245mAh … Read more