Free Headlamp Power Battery

Adapt your Free with the right battery for every session

<p><strong>Free Headlamp Power Battery is available in four sizes for different activities and burn times. All batteries are compatible with the Free series headlamps and feature a built-in power bank function, allowing you to charge your phone, watch or bike computer via USB-C. The batteries are water-resistant according to the IPX5 standard and feature a 5-level battery indicator.</strong></p>

<p><strong>Choose the right battery for your activity</strong><br />
<strong>XS: 14.8 Wh</strong><br />
A lightweight 116-gram Li-ion battery that is easy to carry in your pocket, running vest or attach to the back of the headband for everyday training and fast-paced sessions.</p>

<p><strong>S: 24.1 Wh</strong><br />
A compact and lightweight 150-gram Li-ion battery that offers a great balance between low weight and longer burn time. The battery can easily be carried in your pocket, running vest or attached to the back of the headband.</p>

<p><strong>M: 36 Wh</strong><br />
A powerful 202-gram Li-ion battery developed for long training sessions and extended adventures. Can be attached to a helmet, bike frame or handlebar using separate mounts.</p>

<p><strong>L: 72 Wh</strong><br />
Silva’s most powerful 367-gram Li-ion battery, developed for long sessions where maximum burn time is essential.</p>