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COAST warranties its COAST knives, tools, COAST LED Flashlights/Headlamps and ZITHION-X AA/AAA Batteries to be free of defects in materials and workmanship for the life of the original purchaser. This warranty does not cover normal wear and tear, nor damage resulting from misuse or neglect. Warranty does not cover batteries and charging accessories (or damage caused by either). Non-ZXAA or ZXAAA Batteries or damage caused by batteries (i.e. leakage) is not included in the guarantee.

To begin the warranty process with your COAST product, please complete the Online Warranty Request Form.

Where to buy

Pack power with purpose. COAST ZITHION-X® rechargeable lithium batteries change the game in responsible, portable power technology. Advanced engineering provides a comprehensive upgrade compared with other sources of battery power—delivering long-lasting run times for a clear performance advantage over standard rechargeable lithium and NiMH batteries.

To mimic the broad compatibility of alkaline batteries, proprietary COAST ZX Optimized Voltage™ allows ZITHION-X® batteries to modulate their power supply up or down based on the need and prevent flickering, overheating, and damage to products. The leak-resistant battery casing prevents corrosion during use—matching performance with protection.

Connect conveniently via USB-C to recharge quickly—in 2.5 hours or less for AA and 1.25 hours or less for AAA—and forget about special charging cables and cradles.

Every ZITHION-X® can be recharged many times, resulting in significant cost-savings compared with single-use disposable batteries while keeping hundreds of batteries out of landfills.

  • Features
    • Battery Charging Level Indicator
      Battery Charging Level Indicator

      Check the status of your batteries charge level with our built-in charge level indicator. (Solid red) when charging, (solid green) when fully charged.

    • Built-In USB-C Port
      Built-In USB-C Port

      With a built-in USB-C port, your battery can be charged using a USB-C cord. Some COAST models can be charged both inside or outside the light.

    • Overcharge/Discharge Protection Circuits
      Overcharge/Discharge Protection Circuits

      Overcharging and improperly discharging lithium batteries can cause a safety concern and hazardous risk to the user and its surroundings. COAST batteries are built with overcharge/discharge protection, ensuring you and your battery are protected.

  • Specifications
    • BATTERY COMPOSITION Lithium Ion
    • CAPACITY (MAH) 750mAh
    • CAPACITY (WH) 0.94Wh
    • CELL SIZE AAA
    • CHARGING TIME 1.3 Hours
    • COMPATIBILITY Everyday AAA Alkaline Powered Devices
    • INCLUDED Battery Storage Case | USB-C 4 Split Charging Cable with USB-C/USB-A Power Out
    • POWER INPUT (CHARGE CABLE) USB-C
    • RECOMMENDED STORAGE TEMP <25ºC
    • VOLTAGE 1.5V
    Tested and rated to the ANSI/PLATO FL 1 Standard
  • Battery Charging Level Indicator
    Battery Charging Level Indicator

    Check the status of your batteries charge level with our built-in charge level indicator. (Solid red) when charging, (solid green) when fully charged.

  • Built-In USB-C Port
    Built-In USB-C Port

    With a built-in USB-C port, your battery can be charged using a USB-C cord. Some COAST models can be charged both inside or outside the light.

  • Overcharge/Discharge Protection Circuits
    Overcharge/Discharge Protection Circuits

    Overcharging and improperly discharging lithium batteries can cause a safety concern and hazardous risk to the user and its surroundings. COAST batteries are built with overcharge/discharge protection, ensuring you and your battery are protected.

  • BATTERY COMPOSITION Lithium Ion
  • CAPACITY (MAH) 750mAh
  • CAPACITY (WH) 0.94Wh
  • CELL SIZE AAA
  • CHARGING TIME 1.3 Hours
  • COMPATIBILITY Everyday AAA Alkaline Powered Devices
  • INCLUDED Battery Storage Case | USB-C 4 Split Charging Cable with USB-C/USB-A Power Out
  • POWER INPUT (CHARGE CABLE) USB-C
  • RECOMMENDED STORAGE TEMP <25ºC
  • VOLTAGE 1.5V
Tested and rated to the ANSI/PLATO FL 1 Standard