The Cuddeback Dual Power Bank is simple solution to extra battery life for your Cuddeback J, G, and Dual Cell cameras. The Dual Cell Power bank adds a separate power source that will extend the run time to 6 months plus! The Dual Power Bank can run via two banks of alkaline D-cell batteries or one bank of alkaline D-cells and one bank of D-cell rechargeable batteries. The Dual Power Bank can be used in tandem with the Cuddeback Solar Panel to keep rechargeable batteries fresh. The Dual Power Bank has a battery capacity of 12 D-Cell batteries. The rechargeable bank holds up to 6 rechargeable batteries that can be connected to an external solar panel and while the second bank can hold up 6 standard alkaline D-Cell batteries.