Description
Fenix ARB‑L18‑4000U – USB‑C battery with 4000 mAh – Power for on the go
Imagine this: you are planning a multi-day trekking tour or need a reliable light source for your headlamp or flashlight. Then the Fenix ARB‑L18‑4000U is your ideal companion: a powerful 18650 Li-ion battery with 4000 mAh, built-in USB‑C charging port and robust protection – an all-round carefree package for outdoor, professional and leisure use.
All the advantages of the Fenix ARB-L18-4000U at a glance
- 🔋 Huge 4000 mAh capacity – for significantly longer runtimes than standard batteries
- 🔌 USB-C charging port, up to 1.5 A charging power – convenient instant charging on the go, no external charger required
- ⚡ Stable 7 A discharge – also suitable for powerful flashlights
- 🛡 Comprehensive safety protection – against overcharging, deep discharge, short circuit, and overheating; with pressure valve and PTC protection
- 🔄 Three flexible charging options – directly via USB-C cable, in an external charger or – for compatible models – directly in the lamp itself.
- 💪 Steel housing & pressure valve – robust against impacts, protects against explosion due to gas pressure
- 🔄 Long-lasting: up to 500 charging cycles at 70% residual capacity – economical and reliable in the long term
- 🌍 Compatible with many Fenix models – TK, PD, HM, CL, E, and LD series (pay attention to battery length vs. device compartment)
Technical data at a glance
- Brand: Fenix
- Model: ARB-L18-4000U
- Type: Li-ion battery
- Battery size: 18650
- Capacity: 4000 mAh
- Voltage: 3.6 V
- Discharge current: 7 A
- Energy: 14.4 Wh
- Chargingport: USB-C (integrated)
- Charging current: 1.5 A (external chargers up to 4 A)
- Charging time: approx. 3.5 hours
- Charge cycles: approx. 700 (70% capacity)
- Dimensions: 72 mm × 18.75 mm
- Weight: 55 g
- Protective mechanisms: overcharging, deep discharge, short circuit, overheating
Why this battery will enhance your equipment
- ⚙ Convenient USB-C charging: Ideal in the field, car, or office—any USB-C cable will do.
- 🏕 Outdoor-ready with protective features: Risk of overcharging? Not with the protective circuits; pressure relief valve & steel tube ensure safety in harsh conditions.
- 💡 Power for more performance: Even high-performance lights run longer – ideal for realistic applications, rescue operations or long-distance tours.
- 🔧 Robust and durable: With 500 charging cycles, it is more than just an extra battery – it is long-term equipment reliability.
- ♻️ No harmful metals: Free of lead and mercury – environmentally friendly disposal
ARB‑L18‑4000U: Power, safety, and convenience
Whether for outdoor enthusiasts, professional users, or tech fans, this battery combines maximum capacity, intuitive charging options, and professional-quality protective features. Extend the runtime of your equipment sustainably and worry-free with the Fenix ARB‑L18‑4000U at Swiss‑Sale.ch.
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