Used batteries don’t look dangerous—but tossing them in the trash can cause real problems. From household fires to environmental contamination, improper battery disposal is a bigger issue than most people realize.
The good news? Recycling batteries is easy, inexpensive, and often free. This guide walks you through how to recycle used batteries safely, what types of batteries need special handling, and the tools that make the job safer at home.
Why You Should Never Throw Batteries in the Trash
Most batteries contain materials that are hazardous if punctured, crushed, or exposed to heat. When batteries end up in landfills or trash trucks, they can:
- Start fires in garbage trucks and recycling facilities
- Leak heavy metals like mercury, cadmium, or lead into the ground and atmosphere
- Release corrosive chemicals into soil and groundwater
Lithium-ion batteries, in particular, are one of the leading causes of waste-facility fires in the U.S.
Bottom line: If a battery powered it, it deserves proper disposal.
Types of Batteries and How to Recycle Them
Alkaline Batteries (AA, AAA, C, D, 9V)
Common household batteries used in remotes, flashlights, and toys.
- In many states, alkaline batteries can legally go in the trash
- Best practice: recycle them whenever possible
Tip: Put a piece of tape over the terminals before storing or transporting to prevent any energy still remaining in the battery from causing a short circuit.
Lithium and Lithium-Ion Batteries
Found in:
- Phones
- Laptops
- Power tools
- Rechargeable flashlights
- Button batteries
These must never go in the trash.
- Recycle through certified programs only
- Tape the terminals or place each battery in a separate bag
- Store away from heat or flammable materials
Rechargeable Batteries (NiMH, NiCd)
Used in cordless tools, cameras, and older electronics.
- Often accepted at hardware stores
- Contain metals that should be reclaimed, not dumped
Button and Coin Batteries
Small but dangerous—especially around kids and pets.
- Always recycle
- Store in a sealed container until disposal
- Never mix loose with other batteries. Wrap them in tape if you must throw them in with other batteries.
Where to Recycle Used Batteries
Local Drop-Off Locations
Many retailers accept batteries for recycling, including:
- Home improvement stores
- Electronics retailers
- Municipal recycling centers
Search your town’s waste management site for “battery recycling.”
National Battery Recycling Programs
Two widely used options:
- Call2Recycle – Accepts rechargeable and lithium batteries
- Earth911 – Location finder for battery recycling near you
How to Store Used Batteries Safely at Home
Until you can recycle them, store batteries properly:
- Keep in a cool, dry place
- Tape terminals with electrical tape
- Store damaged or swollen batteries separately
- Never pile loose batteries together
Helpful Tools for Battery Safety
If you regularly deal with batteries—especially lithium or tool batteries—these items are worth having on hand:
- Electrical tape (for covering terminals)
- Fire-resistant battery storage bags
- Small plastic containers for button batteries
- Safety gloves when handling damaged batteries
Battery Recycling and Home Safety
Improperly stored batteries are a quiet fire risk in homes and garages. If a battery:
- Feels hot
- Swells
- Leaks
- Smells metallic or chemical
Place it outdoors, away from flammable materials, and recycle it as soon as possible.
Final Thoughts
Recycling used batteries isn’t just an environmental choice—it’s a safety decision. A few minutes of care can prevent fires, injuries, and long-term environmental damage.
If you use batteries (and we all do), having a simple recycling plan is part of being a responsible DIYer and homeowner.
DIY projects involve risk. Always follow manufacturer instructions and use appropriate safety precautions.
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