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Buying Guide
Lithium AA vs Alkaline AA Batteries: What's the Real Difference?
You're standing in the battery aisle staring at two packs of AA batteries. One costs 3,theothercosts3, the other costs 3,the other costs15. Both claim to power your devices, but why is one five tim...

What Happens If You Have a Lithium Battery in Checked Luggage?
You're at the airport, watching your suitcase disappear down the conveyor belt, when suddenly you remember – there's a lithium battery pack in there. Your heart skips a beat. Will they confiscate y...

Battery Application
CR2032 Coin Cell Battery: Everything You Need to Know About It
That little silver disc keeping your car key fob, computer motherboard, or fitness tracker running? It's probably a CR2032 coin cell battery, and it's way more important than its tiny size suggests...