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$24.99
Extend your runtime without plugging in. The ZX20B booster battery enables you to recharge the built-in ZITHION™ battery in your RL20RB or RL20R—without going back to the wall. The booster battery simply slides and snaps into place over the top of the...
Extend your runtime without plugging in. The ZX20B booster battery enables you to recharge the built-in ZITHION™ battery in your RL20RB or RL20R—without going back to the wall. The booster battery simply slides and snaps into place over the top of the built-in battery and begins charging it, increasing the headlamp’s total runtime. The booster also features a rear-facing, independently controlled red safety signal that shines in two modes—solid and flashing—to ensure you are visible from behind. When turned off, the safety signal doubles as a reflector. For added versatility, the ZX20B is outfitted with a chip on board (C.O.B.) mini flashlight that shines 200 lumens with a 10 hour run time plus an integrated pocket clip—so that whether you need more power or a second light, you are good to go. Recharge the booster battery via USB-C and monitor progress of the fast charge system using the charge level indicator. Once powered up, the USB-C port on the ZX20B can also be used as a power bank for other devices. 
  • Features
    • Battery Life Indicator

      Know when to power back up—with a battery-life indicator, you can always know when your battery needs to be recharged.

    • 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.

    • C.O.B. Optic

      Get brilliant light tailored for specialized formats and use cases. COAST lights featuring Chip on Board (C.O.B.) technology cast a wide beam handy for up-close work—from a strip of LEDs built right onto the chassis, without a standard optic. 

    • 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
    • Battery Type Zithion-X™ Ported Battery
    • Beam Distance (High) 55 ft / 17 m
    • Beam Distance (Low) 32 ft / 10 m
    • Light Output (High) 200 Lumens
    • Light Output (Low) 78 Lumens
    • Power Input (Charge Cable) USB-C (CABLE NOT INCLUDED)
    • Runtime (High) 3 h 30 min
    • Runtime (Low) 10 h
  • Battery Life Indicator

    Know when to power back up—with a battery-life indicator, you can always know when your battery needs to be recharged.

  • 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.

  • C.O.B. Optic

    Get brilliant light tailored for specialized formats and use cases. COAST lights featuring Chip on Board (C.O.B.) technology cast a wide beam handy for up-close work—from a strip of LEDs built right onto the chassis, without a standard optic. 

  • 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
  • Battery Type Zithion-X™ Ported Battery
  • Beam Distance (High) 55 ft / 17 m
  • Beam Distance (Low) 32 ft / 10 m
  • Light Output (High) 200 Lumens
  • Light Output (Low) 78 Lumens
  • Power Input (Charge Cable) USB-C (CABLE NOT INCLUDED)
  • Runtime (High) 3 h 30 min
  • Runtime (Low) 10 h