Runners never have to worry about losing power with the Black Diamond BD 1500 Battery and Charger. Compatible with all Black Diamond Dual Fuel headlamps and lanterns, the BD 1500 Battery and charger helps extend running, hiking, and trekking adventures, giving runners the ability to quickly interchange or charge dying batteries with ease. One thing is for sure, the BD 1500 Battery will keep your path reliably light whenever the trails are calling you.