Fisher-Price TUMMY TIME M3185 - Manual (Page 7)

In exceptional circumstances, batteries may leak fluids that can cause a
chemical burn injury or ruin your product. To avoid battery leakage:
• Do not mix old and new batteries or batteries of different types: alkaline,
standard (carbon-zinc) or rechargeable (nickel-cadmium).
• Insert batteries as indicated inside the battery compartment.
• Remove batteries during long periods of non-use. Always remove
exhausted batteries from the product. Dispose of batteries safely. Do not
dispose of the product in a fire. The batteries inside may explode or leak.
• Never short-circuit the battery terminals.
• Use only batteries of the same or equivalent type, as recommended.
• Do not charge non-rechargeable batteries.
• Remove rechargeable batteries from the product before charging.
• If removable, rechargeable batteries are used, they are only to be charged
under adult supervision.
Battery Safety Information