Recycling and How It Works
How to Dispose of a Car Battery in Washington
The old battery is sitting on the garage floor, and you are not sure whether it can go in the trash. It cannot. The good news is that the legal route is usually the same place you buy a new one.
Here is where it can go, how to get your core charge back and how to handle it without getting hurt.
Short answer
A vehicle battery cannot simply go in the trash in Washington. It may go to a seller of lead acid batteries, an authorized entity or a secondary smelter. Retailers must accept your used battery when you buy a replacement. If you paid a core charge, you can reclaim it by returning a used battery to the place you bought it within thirty days with a receipt.
Where it can legally go
RCW 70A.205.505 says a vehicle battery may not be knowingly disposed of except to one of these:
- A seller of lead acid batteries.
- An authorized entity.
- A secondary smelter.
The fine is up to $1,000 per battery. That means no trash, no ditch and no leaving one on a curb for someone to take.
These rules concern lead acid vehicle batteries. A large hybrid or EV pack is a different thing, and we cover it in dead hybrid or EV options.
How the core charge works
| Situation | What the law says |
|---|---|
| You buy a new battery and bring the old one | Retailers must accept used batteries at the time a replacement is bought (RCW 70A.205.515) |
| You buy a new battery and did not bring the old one | A core charge of at least $5 applies (RCW 70A.205.520). You can reclaim it by returning a used battery to the place you bought it within thirty days with a receipt (RCW 70A.205.515) |
| You just have an old battery and are not buying | Call a battery seller and ask whether they will take it. An auto parts store or a transfer station is a reasonable first call |
Keep the receipt from your new battery in the car until you return the old one. Thirty days can go by fast.
How to handle and carry it
A lead acid battery holds acid and can produce flammable gas. Treat it with respect. This is common-sense advice, so if you have any doubts, ask a parts store or a mechanic to take it out for you.
- Wear gloves and eye protection. Keep it away from sparks and flames.
- Disconnect it only if you know how. If not, have a shop do it.
- Keep it upright, and carry it by the strap or with both hands.
- Set it in a sturdy plastic tub in your vehicle, secured so it cannot tip.
- Cover the terminals or keep metal tools away from them.
- If it is cracked or leaking, keep it in the tub, do not touch the fluid, and call ahead to say so.
- If acid gets on your skin or in your eyes, rinse with plenty of water and get medical help.
If you have several in the garage
Old batteries pile up. Take them in as soon as you can, a few at a time. Do not stack them or leave them outside in the rain. If they are unmarked, ask the place you are calling whether they will take them. Ask about limits per visit.
Small lithium-ion batteries from tools or scooters go a different route. EPA says they should go to separate recycling or household hazardous waste points, with terminals taped or batteries bagged to prevent fires. Do not mix them in with your car battery.
The battery in a car you are junking
If it is still in the car, the simplest answer is to leave it. Tires and batteries are removed at the auto steel recycler before the car is crushed. You do not need to pull it first, and you do not need to deliver it anywhere.
If you took it out already, for instance for use in another car, tell us when you call. Missing parts can change an offer, and condition is one of the five things that shape it, along with year and model, demand for parts, weight and size, and towing distance. Read selling a car with missing parts and how we work out an offer.
A dead battery does not stop a pickup, since we use flatbeds and the car does not need to run. See non-running car removal, and what happens after the tow.
Common questions
Official sources
- RCW 70A.205.505: Vehicle battery disposal
- RCW 70A.205.515: Retailers accepting used batteries
- RCW 70A.205.520: Battery core charge
- US EPA: Used lithium-ion batteries
This post summarizes official Washington guidance as of November 2, 2026. It is general information, not legal or tax advice. Rules and fees can change, so check the sources above for your situation.
Keep reading
- Washington Junk Car Seller’s GuideEvery guide, sorted by where you are in the decision
- Washington Junk Car Paperwork GuideThe documents you need before pickup
- Car Refrigerant and Junking: What the Rules Say
- Dead Hybrid or EV: What Are Your Options in Washington?
- Junk Car Terms Explained: A Plain-English Glossary
- Washington Title Words Explained: Legal Owner, Brand, Release
- How Long Does It Take to Junk a Car?
- What Happens to Your Car After It Is Towed Away
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