Black Diamond BD 1500 Battery & Charger Brand_Katadyn but your helmet is not

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Black Diamond BD 1500 Battery & Charger Brand_Katadyn but your helmet is notThe 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. * Weight : 70 g 2. 47 oz Features: * Charger and cable included * 1500 mAh Li ion rechargeable battery cell * Compatible with Black Diamond Dual