The SheerVision FireFly Infinity Ultra™ Lithium-Polymer Battery

This innovative lithium-polymer system has replaced the NiMH-based system that was previously manufactured by SheerVision.   This new Ultra battery is compatible with all of our Original FireFly LED™ and FireFly Infinity™ headlights.

The battery system is one of the most important components of any portable headlight.   The lithium-polymer technology has allowed us to offer a streamlined & lightweight battery that provides the power needed for intense all-day use.

Benefits include:
• All day use (6+ hours) from a single battery
• Attractive lightweight design (under 6 ounces / 160 grams)
• Integrated intelligent microprocessor
• Battery “fuel gauge” indicator lights
• Tactile buttons allow for a range of light intensity levels
• Lithium-Polymer battery technology more robust against potential physical damage than lithium ion batteries, and the SheerVision Ultra battery • includes enhanced safety features
• Provides a 20% longer charges than comparably sized lithium-ion batteries

New lithium-polymer battery charger (one included with first Ultra battery purchase)
• Supports fast charging, and long battery life
• Compact and lightweight