Old Lithium Batteries: Great at Powering Gadgets, But A Lurking Danger In a Junk Drawer

Battery fire from a cellphone’s old Lithium battery. Via YouTuibe

If you have a drawer full of random chargers, mystery cables, and a couple of old lithium-ion batteries you keep meaning to deal with, you’re not alone. Floridians are great at sunshine, seafood, and driving too slow in the left lane, but we’re not so great at battery disposal. Some people have paid dearly for not getting rid of their old batteries: a massive fire and a lost home. That’s not exaggerating, it happens, and more often than you might think.

Here’s the part worth paying attention to: lithium batteries really can’t go in the trash. They don’t behave like old AA alkalines. When tossed into garbage trucks or squeezed at recycling plants, they can spark, and that spark can turn into a fire before anyone realizes what happened. Waste facilities in several counties have had surprise flames from batteries that looked harmless until the moment they weren’t. Unlike a grease fire on the stove, a lithium fire is very difficult to put out.

“The source of the gasses that are creating the flames is confined within a cell battery that will not allow water in,” said Ofodike Ezekoye, a fire scientist and professor of mechanical engineering at the University of Texas at Austin told NBC News in 2023 “When firefighters are responding to these types of incidents, it takes a lot longer to be able to control the fire because it requires so much more water.”

Leaving them around the house isn’t much safer. A damaged lithium battery can overheat suddenly under the right conditions. A junk drawer, a warm garage shelf, even the cup holder of a car can become the starting point of a very avoidable emergency. Fire departments across the state have a simple request: get those old batteries out of the house and into a proper drop-off.

And if you don’t think you have any lithium batteries in your home, think again. Have a laptop? Probably has a lithium battery. An electric bike? Lithium batteries. Cell phones, tablets, wireless earbuds, smartwatches, power tools (drills), cordless vacuums, digital cameras, e-cigarettes, they all have lithium batteries. They are everywhere.

Watch this video to see just how dangerous these batteries can be:

Household Hazardous Waste Sites: The Official Route

Every county has at least one drop-off center that handles things you shouldn’t put in regular trash, and lithium batteries are almost always on the accepted list.

  • South Florida: Miami-Dade’s West Dade and South Dade centers take everything from phone batteries to those chunky packs from power tools. Broward has sites in Pompano Beach and Davie.
  • Central Florida: Orange, Osceola, and Seminole counties all accept loose rechargeable batteries and devices that still have batteries inside.
  • Tampa Bay area: Hillsborough, Pinellas, Pasco, and Polk counties make it easy with multiple hazardous waste locations and occasional neighborhood drop-off days.

Most places will ask you to put tape over the battery terminals. A little bit of clear tape or masking tape is all it takes.

Big Retail Stores: The Easiest Option

If you’d rather not drive to a county facility, plenty of stores participate in Call2Recycle, a national program that collects rechargeable batteries.

You can usually find drop boxes at:

  • Home Depot
  • Lowe’s
  • Best Buy
  • Staples

They’re often near the front entrance. If you don’t spot one, an employee can point you in the right direction.

Some cities hold special collection days, especially during the cooler months when people are cleaning out garages. These are perfect if you don’t live near a permanent site or if you want to get rid of a whole batch of old electronics at once. Check your city’s public works or sanitation page for upcoming dates.

What Not to Do (Even If It’s Tempting)

  • Don’t toss lithium batteries in the trash or your curbside recycling bin.
  • Don’t keep damaged or swollen batteries indoors. If you have one, set it in a fire-safe container like a metal pot and bring it to a disposal site soon.
  • Don’t store a pile of loose batteries where the ends can touch. That’s how short circuits happen.

Why All This Matters

Lithium batteries are amazing when they work. They’re light, powerful, and everywhere. But when they fail, they fail fast. A battery crushed in a garbage truck can ignite the load. A forgotten laptop battery sitting in a hot garage can overheat. These fires spread quickly, which is why waste facilities and firefighters talk about this more than you might expect.

If you have old lithium batteries sitting around, now’s a good time to part ways. Florida gives you plenty of safe drop-off spots, and getting rid of them takes less effort than scrolling through your photos to find that one screenshot you saved months ago.

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