The Trail Runner Hybrid Battery Case can carry either a Silva Rechargeable Hybrid Battery (not included) or 3xAAA batteries (batteries included). The body has grip-friendly surfaces and a built-in red rear light that adds visibility.
The battery housing is waterproof and complies with the IPX5 standard; withstands heavy rain and water from all directions. Thanks to the built-in red safety light, you don't have to add extra light to your headband to increase visibility - it's great for both running and everyday running.

Technical features

Features

• The Hybrid Battery Case is really lightweight and only weighs 53g with the Hybrid Battery 1.15Ah and 62g with 3xAAA batteries
• The Trail Runner Hybrid Battery Case is custom made for headlamps with the Trail Runner series and fits Trail Runner 2X, 3-, 4- and Free series