Mattel Global
Consumer Support
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Frequently Asked Questions

https://qservice.corp.mattel.com/us/Docs/>A.    We recommend using alkaline batteries with our products, as they are great for long-term use and help optimize performance. We don't recommend using Carbon-Zinc batteries. While Carbon-Zinc batteries may work well with low-power devices, they can drain after a short period of time and cause certain products to not function properly.