Petzl Borea Helmet Survey What makes this 21700 battery

What makes this 21700 battery even better is the USB Type-C charging port that is embedded in the cell

The sheave with sealed ball bearings provides excellent efficiency

Battery Level Indicator

short legs

suitable for routes with rock and ice

Petzl Borea Helmet Survey What makes this 21700 batteryPetzl Borea Helmet Durable and versatile womens helmet for climbing and mountaineering With a headband adapted to be worn with a ponytail, the BOREA is perfect for all your adventures! Its durable design is great for climbing, via ferrata, canyoning, and caving. The thick shell provides optimal resistance against impacts and scuffs. The design provides greater coverage for enhanced head protection, and is compact and ventilated for maximum comfort.