$69.99

COAST warranties its electronics accessories (products with digital screens) to be free of defects in materials and workmanship for ONE year. Warranty does not cover batteries and charging accessories (or damage caused by either). Batteries or damage caused by batteries (i.e. leakage) not included in guarantee.

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


Power hands-free lighting. Compatible with the COAST HL8R headlamp, the ZX900 ZITHION-X™ rechargeable lithium ion battery sets you up to charge your battery either inside or outside of your headlamp—with a max run time of 62 hours. The battery features a built-in Micro...

Power hands-free lighting. Compatible with the COAST HL8R headlamp, the ZX900 ZITHION-X™ rechargeable lithium ion battery sets you up to charge your battery either inside or outside of your headlamp—with a max run time of 62 hours. The battery features a built-in Micro USB port, a battery charge indicator—which flashes red during charge-up and shines solid green when fully charged—and overcharge/discharge protection circuits to make powering up as simple and safe as possible. The battery is backed by COAST’s one-year warranty against defects in materials and workmanship. 

All COAST ZITHION-X™ batteries are protected with premium overcharge/discharge protection and are backed by COAST’s one-year warranty.

  • Features
    • Overcharge/Discharge Protection Circuits

      Over charging and improperly discharging lithium batteries can cause a safety concern and hazerdous risk to the user and it's surroundings. COAST batteries are built with overcharge/discharge protection, ensuring you and your battery are protected. 

    • Rechargeable Battery

      Power up on your terms with a recharging system that connects to standard outlets and ports.

  • Specifications
    • Battery Chemistry Li-Ion
    • Capacity (mAh) 4400 mAh
    • Capacity (Wh) 16.28 Wh
    • Cell Size HYDL18650 x 2
    • Power Input (Charging Cable) Micro USB
    • Product Compatible HL8R
    • Storage Temp Range 20-35ºC
    • Voltage 3.7V
  • Overcharge/Discharge Protection Circuits

    Over charging and improperly discharging lithium batteries can cause a safety concern and hazerdous risk to the user and it's surroundings. COAST batteries are built with overcharge/discharge protection, ensuring you and your battery are protected. 

  • Rechargeable Battery

    Power up on your terms with a recharging system that connects to standard outlets and ports.

  • Battery Chemistry Li-Ion
  • Capacity (mAh) 4400 mAh
  • Capacity (Wh) 16.28 Wh
  • Cell Size HYDL18650 x 2
  • Power Input (Charging Cable) Micro USB
  • Product Compatible HL8R
  • Storage Temp Range 20-35ºC
  • Voltage 3.7V