All of our Sphero products utilize rechargeable Lithium Ion batteries as a power source. In designing our products, we made it a point to use the highest-quality, stable Lithium Ion batteries possible, optimized for a balance of safety and performance.
For more details, please see our best practices and safety conformity documents, here:
- Best practices user manuals - https://support.sphero.com/solution/articles/9000092213-product-user-manuals
- Safety conformity documents - https://support.sphero.com/solution/articles/9000091303-declarations-of-conformity
If you have any questions or concerns, please let us know at email@example.com, we're always happy to assist.