With this fountain that is pet, no battery to make it operate would be needed by you. The charcoal filters clean the water and makes it free of debris and dust particles making the water fit for drinking and also adding to the flavor of the water.
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Another option to give your pet water is the electric or battery operated water fountain. These fountains have water circulating through a pump so the water is always moving. It encourages pets to drink more often and the circulating water will keep it much fresher. However, they will still be needed to be cleaned about twice a week as pet hair, dust and lint will collect in the system.
"Is this big enough for a normal dog to drink out of
Electric or battery-operated water fountains circulate water through a pump keeping it constantly moving. They encourage pets to drink more regularly, as the circulating water is better oxygenated and fresher. While they don't need to be cleaned daily with soapy water, as is suggested for standard water and food dishes, biweekly maintenance is recommended. A carbon filter will help remove minerals and chemicals from water, but over time it can become clogged with hair and dust, slowing the circulation of water and allowing harmful bacteria and fungi to grow.
The Best Cat Drinking Fountain. It Could Save Your Pet's Life!