CTA Digital DB-FT1 NP-FT1 Rechargeable Lithium-Ion Battery (800mAh, 3.6V) Replacement for Sony NP-FT1 Battery Replaces The Sony Np-Ft1 Battery 800mAh, 3.6V Retains full capacity, free from memory effect Lithium-ion for maximum battery life power 3 Year Warranty