Nitecore | NL1840HP | Battery 18650 | 4.0 Ah

The Nitecore NL1840HP is a powerful, high-quality 18650 Li-Ion battery with a capacity of 4000 mAh and a maximum discharge current of 10 ADesigned for devices with high power demands—such as powerful flashlights and headlamps—this battery delivers stable performance and long-lasting power, even with heavy use.

The built-in PCB/IC security Protects against overcharging, deep discharging, short circuits, and overheating. Thanks to its robust construction, waterproof housing (IPX6) and up to 500 charging cycles This is a reliable choice for daily and professional use.

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⭐ Key Benefits

• ⚡ High capacity of 4000 mAh – longer life for powerful lamps
• 🔋 Up to 10 A discharge current – ideal for high-performance lighting
• 🛡️ PCB/IC security – prevents overcharging, discharging and short circuits
• 💦 Waterproof according to IPX6 – resistant to heavy rain and outdoor conditions
• 🔁 Up to 500 charge cycles – durable and reliable
• 🌱 Environmentally friendly – free of mercury, lead and cadmium

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📊 Specifications

• Type: Li-Ion 18650 rechargeable
• Capacity: 4000 mAh/3.6 V/14.4 Wh
• Maximum discharge current: 10 A
• Rechargeable via: Nitecore UMS series or Ci series charger
• Protection: PCB/IC against overcharge, discharge and short circuit
• Number of charge cycles: up to 500
• Waterproof: IPX6
• Total length: 69.8 mm
• Weight: 50 g
• Color: Yellow
• Warranty: 1 year

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🎯 Perfect for

Powerful Nitecore headlamps, flashlights and outdoor equipment that deliver high current — ideal for professional use, trail running, camping and expedition applications where reliability is essential.