4 x Duracell 9V PP3 Block 170 mAh Rechargeable Batteries HR22 6LR61 HR9V DC1604 5000394056008 | eBay
Amazon.com: Duracell - CopperTop 9V Alkaline Batteries - long lasting, all-purpose 9 Volt battery for household and business - 2 count : Health & Household
Duracell® Procell PC1604BKD Non-Rechargeable Dry Cell Alkaline Battery, 9V Size, Manganese Dioxide, 9 V, 600 mAh - Premier Safety