Can I use “XXX” Brand battery?
We can’t possibly test all of the different batteries available on the market. Therefore we do not make any recommendations, according to our product design, just make sure that the battery voltage is full 3V can work correctly.
Counterfeits
Counterfeit batteries are a growing problem, the methods and markets for fake batteries have matured. These batteries are often sold on eBay and even Amazon. Many used batteries are re-wrapped and sold as new but in fact are used cells. Always make sure you buy batteries from a reputable source.