Ultraspire | 18650 Battery | Battery 3.4 Ah

Ultraspire | 18650 Battery | Battery 3.4 Ah

🔋 Reliable battery for your Lumen lamps

The Ultraspire 18650 Battery is specially programmed for a low amperage output, so you Lumen headlamp performs optimally – whether you're hitting the trails at night or training in the dark on the road. With a 3400 mAh capacity and up to 500 charge cycles This is the ideal replacement or extra battery to always be fully charged when you hit the road.

✅ Key Benefits

• 🔋 3400 mAh capacity – long lifespan for your Lumen
• ⚡ Optimized output – specially designed for Lumen lamps
• 🔄 Rechargeable & sustainable – up to 500 charge cycles
• 🌡️ Wide temperature range – reliable from -20°C to +60°C
• ⏱️ Fast charging – 2–3 hours with charger or 4–6 hours in lamp

📋 Specifications

• Type: 18650 Li-ion rechargeable battery
• Capacity: 3400 mAh (3.4 Ah)
• Nominal voltage: 3.7 V
• Charging voltage: 4.2–4.3 V
• Dimensions: Ø 18.1–18.55 mm x H 65.3 mm
• Loading time: 2–3 hours (on charger) | 4–6 hours (in lamp)
• Protection: Overcharge, overdischarge & short circuit
• Cycles: approx. 500 charging cycles
• Temperature: Charging 0–45°C | Discharging -20–60°C | Storage -5–35°C

🎯 Perfect for

Trail runners and ultra runners who with Ultraspire Lumen Lamps walk and a reliable spare battery want to take with you for long night runs or races.

We ship every business day with DHL. They pick up around 2:00 PM. Delivery in the Netherlands is usually the next day.

In the Netherlands, shipping is free for orders over 50 euros. In Belgium, shipping is free for orders over 100 euros.

We have a 365-day returns policy. Please use our returns form: https://trail.nl/retour

UltrAspire: Thoughtful Hydration for Trail Runners and Ultra Runners

UltrAspire is a brand dedicated to developing innovative hydration systems for trail runners, ultrarunners, and adventurers who push themselves to the limit. Each product is designed with athlete input and attention to detail, comfort, and performance.

Features of UltrAspire products:

• Ergonomic design: UltrAspire vests and belts are designed with the body in mind. They fit snugly, prevent chafing, and remain stable during technical descents or long climbs.
• Smart storage options: The compartment layout is well thought out – soft flasks, nutrition, phone and raincoat all have their place and remain easily accessible while walking.
• Lightweight and breathable: Made from breathable, quick-drying materials that keep you cool and comfortable, even on hot days or during intense exercise.
• Trail oriented: From minimalist race vests to large ultra-trail vests – UltrAspire offers solutions for every type of trail runner.

Why choose UltrAspire?

UltrAspire stands for performance without compromise. Combining ultrarunning experience with smart innovations, the brand delivers hydration vests and belts that truly make a difference on the trails. Ideal for those who want to run efficiently and need quick access to everything they need while on the go.

Do you have questions about this product or are you unsure about several models? Feel free to contact us or visit our shop.

• The fastest way is the chat button at the bottom right.
• You can also email us at winkel@trail.nl.
• You can also call us at 020 308 6088.