The Canon CBK4-300 AA battery and charger kit is designed to work with any Canon digital camera that's powered by AA batteries. This charger kit comes with four AA rechargeable batteries powered by Nickel Metal-Hydride technology that's free of the frustrating "memory" effect. Although designed by Canon for use in Canon cameras, these batteries will work in any electronic device powered by AA batteries.
What's in the box
Canon CBK4-300 AA battery charger, flip-down plug adaptor and four AA rechargeable batteries.

Items Shipped and Sold by Amazon.com are a Genuine Canon Accessories
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Why Buy Genuine Canon Accessories?
To help ensure the safe, reliable operation of your valuable Canon equipment, you should avoid using counterfeit "Canon" accessories. Engineered and manufactured to meet government and industry standards for safety and reliability, genuine Canon accessories including batteries, chargers, and battery grips, help ensure the optimal performance of your valuable Canon gear. Genuine Canon batteries, chargers, and battery grips are designed to hold a charge, properly fit into Canon equipment, and prevent overcharging, short-circuiting and/or overheating that may cause damage to your Canon equipment.