
If you have a swollen, damaged, or simply end‑of‑life lithium‑polymer (LiPo) battery, this guide shows you exactly how to make it safe, stay within U.S. rules, and get it to a proper recycler—without myths or risky shortcuts.
- Estimated prep time: 15–30 minutes (households); 45–90 minutes for SMB/EHS intake
- Difficulty: Easy to moderate
- You’ll need: non‑conductive tape (e.g., electrical or Kapton), zip‑top bags, scissors, nitrile gloves, safety glasses, a rigid non‑metal container (plastic) with padding (bubble wrap or vermiculite), and access to a drop‑off location
- Why this works: The steps below align with recent U.S. federal guidance from EPA, DOT/PHMSA, and USPS, which emphasize isolating terminals, preventing damage/shorts, and using certified collection or HHW programs rather than trash or curbside recycling (see the EPA’s 2023 lithium battery memo and FAQs).
1) Identify the battery and assess its condition
Do this before any handling so you can choose the safest path.
- Confirm it’s a LiPo/Li‑ion battery: soft pouch or rectangular pack commonly used in RC, drones, e‑bikes, and certain electronics.
- Check for damage red flags: swelling/puffing, unusual odor, hissing, popping, discoloration, heat or hot spots, leakage, scorch marks, or melted wrap. If any of these appear, stop normal handling and treat it as damaged/defective.
- These are the types of warning signs highlighted in the NFPA lithium‑ion battery safety tip sheet (2025).
Safety checkpoint
- If the pack is hot, hissing, smoking, or venting, move people away, call your local fire department, and follow their instructions. Do not attempt to disassemble or cool with a strong water stream.
2) Make it safe now: power down, isolate, and package
Follow these steps whether you are a household or a business.
- Power down the device and disconnect the LiPo if it’s safe to do so. If removal risks damage, leave it installed and proceed to drop‑off guidance.
- Put on gloves and safety glasses.
- Cover exposed terminals with non‑conductive tape. Keep labels/chemistry markings visible.
- EPA’s 2023 guidance to households recommends taping terminals or bagging batteries individually to prevent short circuits and keeping them protected from damage; it also instructs not to place lithium batteries in trash or curbside recycling (EPA memo, May 24, 2023).
- Bag individually. Place each battery in its own clear bag to prevent contact with other items. Stewardship programs echo this requirement for safe collection and transport—see the Call2Recycle terminal protection quick reference (2023) for examples of acceptable tape/bagging.
- Place the bagged battery into a rigid, non‑metal container with padding (bubble wrap or vermiculite). Keep the container upright and away from heat sources.
- Store short‑term only in a cool, dry place until drop‑off.
What NOT to do
- Do not put LiPo batteries in household trash or curbside recycling. EPA warns of fire hazards to waste workers and facilities and instructs households to use collection programs instead, taping or bagging terminals to prevent shorts (EPA memo, 2023; EPA FAQs, accessed 2025).
- Do not puncture, crush, or disassemble the pack.
- Do not “saltwater discharge” or attempt any DIY destructive discharge method. Modern safety guidance favors isolating terminals and using collection/recycling programs rather than home discharge; stewardship groups such as Call2Recycle’s guidance (2023) focus on safe terminal protection and proper drop‑off.
Verification checkpoint
- Terminals taped? Battery individually bagged? Packed securely in a non‑metal rigid container with padding? Container labeled “Li‑ion/LiPo for recycling” for clarity.
3) Choose your path: Household vs. Business/EHS
Different rules apply to households and businesses under RCRA. Here’s how to comply.
For households
- Use a local program: Take taped-and-bagged batteries to a household hazardous waste (HHW) facility or a participating retailer collection site. EPA directs households to use drop‑off programs, not trash or curbside bins (EPA memo, 2023).
- Find a location: Use your city/county HHW page or a national locator such as Call2Recycle’s site locator. Confirm they accept lithium‑ion/LiPo and ask whether damaged/swollen packs are accepted at that site.
- If the pack is damaged/hot/leaking: Many retail bins won’t accept it. Contact your HHW program to arrange safe handling or special events for damaged batteries.
Household handoff checklist
- You have taped terminals and bagged the pack individually.
- The container is rigid, non‑metal, padded, and closed.
- You have confirmed the drop‑off site accepts lithium‑ion/LiPo and whether they accept damaged packs.
For businesses and makerspaces (Universal Waste)
- Manage as universal waste: EPA recommends managing lithium batteries as universal waste under 40 CFR Part 273, and notes most spent lithium‑ion batteries are likely hazardous waste at disposal due to ignitability/reactivity characteristics (EPA memo, 2023).
- Key small quantity handler requirements (check your state for stricter rules):
- Labeling/marking: Mark containers “Universal Waste—Batteries,” “Waste Batteries,” or “Used Batteries” as specified in §273.14 (eCFR 40 CFR Part 273, most recent).
- Accumulation: Up to one year on site; you must be able to demonstrate how long they’ve been accumulated (e.g., date marking or inventory) per §273.15.
- Employee training: Inform handlers of proper procedures and emergency response per §273.16.
- Releases: Contain any spills/releases immediately and manage residues appropriately per §273.17.
- Vendor selection: Engage a certified recycler/hauler who can provide DOT‑compliant packaging/transport and documentation.
Business intake checklist
- Containers labeled per §273.14, accumulation time tracked per §273.15, staff informed per §273.16, and release response plan per §273.17.
- Damaged/defective packs segregated for special handling.
- Written agreement or SOPs from your recycler/hauler.
4) Prepare for transport or mailing
Households: Prefer in‑person drop‑off
- In‑person drop‑off is the safest route for consumers. Mailing lithium batteries has strict limits and damaged or defective batteries should not be mailed.
- USPS rules: Publication 52 sets the domestic mailing conditions for lithium batteries (e.g., watt‑hour limits and piece counts). It distinguishes standalone batteries (UN3480) from batteries installed in or packed with equipment (UN3481). Review the live USPS lithium battery sections before attempting to mail, and when in doubt, choose in‑person drop‑off. See USPS Publication 52 lithium battery section (current online) 和 Pub 52 homepage.
Household transport checklist
- Battery is taped, bagged individually, and cushioned in a rigid, non‑metal container.
- The container is secured upright in your vehicle and kept cool.
- You have called ahead to confirm acceptance, especially if the battery is swollen/damaged.
Businesses: DOT/PHMSA rules for shipping
- Disposal/recycling shipments: Lithium batteries shipped for disposal or recycling have special provisions. Under 49 CFR §173.185(g), such batteries are excepted from some requirements when packed to prevent short circuits and the release of dangerous materials under normal conditions of transport. Always follow your recycler’s packaging instructions and use qualified carriers (eCFR 49 CFR §173.185).
- Damaged/defective batteries: These require additional controls. §173.185(f) mandates strong outer packagings and a specific “DAMAGED/DEFECTIVE LITHIUM BATTERIES” marking, among other conditions (eCFR 49 CFR §173.185(f)).
- Reference portal: PHMSA’s lithium battery portal summarizes scenarios, training expectations, and modal limitations for shippers; use it as a current reference point (PHMSA lithium batteries portal).
Business transport verification
- Packaging meets your recycler’s SOPs and 49 CFR §173.185 requirements as applicable.
- Damaged/defective packs are marked and packaged per §173.185(f).
- Carrier and paperwork align with your recycler’s instructions.
5) Handover and documentation
- Households: Request a receipt or confirmation of drop‑off when possible. Keep it with product records (useful for HOA, landlord, or insurance inquiries).
- Businesses: Maintain manifests or certificates of recycling as provided by your vendor. Keep universal waste logs (dates, quantities), training records, and any incident reports accessible for inspections.
Handover checkpoint
- You can demonstrate where the pack went (HHW or certified recycler) and when.
- For businesses, your records show compliance with universal waste management and DOT shipping steps.
6) Troubleshooting and emergencies
If the battery heats up, hisses, smokes, or ignites during handling:
- Stop and evacuate the immediate area. Call your local fire department.
- If you have a Class D extinguisher or lithium battery fire‑rated agent and are trained to use it, deploy per label instructions. Avoid directing a high‑pressure water stream at the pack.
- Once safe, contact your HHW program or recycler for next steps. The NFPA’s 2025 consumer tip sheet outlines common warning signs and basic actions for lithium‑ion incidents.
If you can’t find a local drop‑off that accepts damaged packs
- Call your county HHW program; many have special handling or event days for damaged lithium batteries.
- Ask your recycler for instructions; some offer damage‑tolerant packaging or pickup options tailored to lithium‑ion risk.
Storage taking longer than expected
- Keep the battery taped, bagged, padded, and cool. Inspect the container periodically for heat or swelling. Do not store near flammables.
7) FAQs
Can I throw away a LiPo battery or put it in curbside recycling?
No. EPA instructs households not to place lithium batteries in trash or curbside recycling and to use drop‑off programs instead; protect terminals with tape or individual bags to prevent shorts (EPA memo, 2023; EPA FAQs, 2025).
Can I mail a swollen or damaged LiPo battery?
Do not mail damaged or defective lithium batteries. USPS lithium battery rules are strict, and damaged/defective items are generally prohibited from the mail. Prefer in‑person HHW or certified recycling options; consult the live USPS Pub 52 lithium battery section if you are considering any mailing scenario.
What container is safe for transport?
Use a rigid, non‑metal plastic container with padding (bubble wrap or vermiculite). Keep batteries individually bagged and terminals taped. This aligns with EPA’s short‑circuit prevention advice and collection program practices (EPA memo, 2023; Call2Recycle terminal protection guide, 2023).
How should businesses label and manage spent batteries on site?
Label containers “Universal Waste—Batteries,” track accumulation time (≤1 year), train handlers, and contain releases, per 40 CFR Part 273 small quantity handler provisions (eCFR 40 CFR Part 273, most recent).
Any special steps when shipping for recycling or disposal as a business?
Yes. Follow your recycler’s SOPs and DOT rules. §173.185(g) provides exceptions for batteries shipped for recycling/disposal when packed to prevent short circuits and release of dangerous materials, while §173.185(f) imposes specific conditions for damaged/defective batteries (eCFR 49 CFR §173.185; PHMSA portal).
Is the “saltwater discharge” method recommended before disposal?
No. Contemporary safety guidance does not recommend DIY discharge methods. Instead, protect terminals and use official collection or recycling programs. See EPA’s household handling instructions and stewardship preparation practices like Call2Recycle’s terminal protection guidance (2023).
8) Quick reference: What you’ll do today
- Assess condition; if damaged/hot/smoking, call the fire department.
- Tape terminals, bag individually, and cushion in a rigid non‑metal container.
- Households: Take to HHW or a participating retailer; verify if damaged packs are accepted. Use the Call2Recycle locator to find sites.
- Businesses: Manage as universal waste (label, track time, train), and use a certified recycler/hauler following PHMSA/DOT lithium battery rules 和 49 CFR §173.185.
- Keep simple records of your handoff or shipment.
Staying within these steps protects you, the environment, and the people who handle waste—while meeting current U.S. safety and compliance expectations.