Petzl ACCU Core Headlamp Battery Brand_Bollé Great durability and reliability:

Great durability and reliability:

but no installation tool

Side stash pockets allow easy access to your gear

suited for both short outings as well as full-day tours

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Petzl ACCU Core Headlamp Battery Brand_Bollé Great durability and reliability:This rechargeable battery quickly pays for itself. It costs about the same price as 6 sets of alkaline batteries, but provides the equivalent lifespan of more than 900 batteries. Lithium ion batteries perform well at low temperatures and are lighter than alkaline. Rechargeable up to 300 times (beyond that, capacity is approximately 30% reduced). Indicator lights for both remaining power and charge status. Easily charges via the included micro USB