Moving on to the disposable batteries, let us consider the available options on the basis of performance, durability, as well as performance.
Duracell CopperTop Alkaline Disposable Batteries
Most of the alkaline batteries aren’t counted amongst the best batteries for digital cameras, but the Duracell CopperTop batteries are amongst the rare exceptions in this category.

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These are extremely economic amongst the disposable batteries, and they're good for usage in digital camera, provided you don’t click 100 times in a day.
However, if you consider their real usage, these are ideal for usage in low-drain electronics circuitries such as smoke detectors. But, for the extensive camera users, these might not turn out to be a viable option, due to inferior storage capacity, and poor cost-efficiency in the longer run.
When compared with the pre-charged Sanyo eneloop, they don’t stand a chance; on the other hand, they don’t last as long as the lithium disposable batteries. More so, they pose the risk of running out of power just when you need to capture an unforgettable moment in your camera.
But, on the brighter side, these are one of the easiest batteries that you can find, be it in a small store or a big supermarket, and the initial cost of purchasing is also very low. And, they’re available in AA, C, 9-volt, AAA, and D sizes; so you don’t have to worry if you’re in need of a size other than the standard AA or AAA size.
The Duracell CopperTop batteries cost about $1.41 per battery at Amazon, and turn out to be the best batteries for digital camera during longer adventurous trips wherein you can’t recharge the battery. Furthermore, they’re considered to be one of the most economic yet durable disposable alkaline batteries available in the market; so if you need a cheap battery for your digital camera, Duracell is the way to go!