The new BD 1500 Rechargeable Battery is compatible with all BD Dual Fuel headlamps and lanterns. The BD 1500 battery comes with a USB charger and is a 1500 mAh Li-ion rechargeable cell, giving you the freedom of reliable light you can use again and again while running, climbing and trekking in the mountains. BD 1500 Battery & Charger Features Charger and cable included 1500 mAh Li-ion rechargeable battery cell Compatible with Black Diamond Dual Fuel headlamps and lanterns