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WARNING: 18650 Battery Safety

⚠ Important Safety Warnings from 18650 Battery Partners

Improper use or mishandling of lithium-ion batteries can result in FIRE, EXPLOSION, or THERMAL RUNAWAY, leading to serious injury, property damage, or death. All users must read and follow our complete safety guidelines before purchase or use.


🔴 Critical Warning

Never carry loose batteries in your pocket, purse, or bag. Contact with metal objects like keys or coins can cause a short circuit, potentially resulting in severe burns, fire, or explosion.
✅ Always store or transport batteries in a protective case or box.


🔧 Intended Use

Our lithium-ion cells are intended for integration into protected battery packs that include a Battery Management System (BMS) or Protection Circuit Board (PCB).
❌ They are not intended for standalone use or use in consumer devices such as e-cigarettes or vaporizers.


🔥 What is Thermal Runaway?

Thermal runaway is a dangerous chain reaction in which a battery overheats uncontrollably, potentially leading to fire or explosion.

  • Common Causes:
    Overcharging, short circuits, physical damage, or exposure to high heat

  • How to Prevent It:

    • Use a smart charger

    • Avoid impact or puncture

    • Store batteries in a cool, dry place


📦 Storage & Transport

  • Always use protective cases or boxes for storage and transport.

  • Never store loose batteries in pockets, bags, or near metal objects.


🕵 Inspection Guidelines

Do not use any battery that shows signs of damage, including:

  • Torn or missing PVC wrapper

  • Damaged or missing terminal insulator

  • Dents, leaks, bulging, or corrosion

These are signs of internal instability and may lead to failure or fire.


⚡ Charging Safety

  • Use only smart chargers rated for lithium-ion cells

  • Match the charger voltage with battery specs

  • Never overcharge, over-discharge, or leave batteries unattended during charging


⛔ Prohibited Actions

Do not:

  • Short circuit

  • Modify or puncture

  • Crush or expose to liquid

  • Solder directly to the cell (spot welding only is allowed)


🚨 Emergency Response

If signs of thermal runaway occur (smoke, swelling, or excessive heat):

  1. Stop use immediately

  2. Move the battery to a non-flammable surface (e.g., concrete or sand)

  3. For fires, use a Class D fire extinguisher or sand — never use water


📜 Legal Disclaimer

18650 Battery Partners is not liable for any damage, injury, or loss resulting from improper use, handling, or failure to follow safety guidelines. Lithium-ion batteries must be handled with strict adherence to all recommended safety practices.


🔄 Reseller Responsibilities

Resellers must:

  • Clearly communicate all safety warnings to customers

  • Provide individual protective packaging for each battery

  • Never distribute loose or unprotected cells

Some batteries are shipped in bulk packaging; appropriate storage cases must be provided at the point of sale.


🧩 Product Compatibility & Assembly

  • Compatibility is the customer’s responsibility.

  • 18650 Battery Partners does not guarantee fit or function in any specific device or application.

  • We do not take responsibility for battery pack design, assembly, or safety.

Proper cell matching, protection circuitry, and safe construction practices are essential. Customers and resellers assume full responsibility for the safe handling and distribution of all products.


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