ltem description from the seller
1.The supply terminals are not to be short-circuited.
2.Do not mix old and new batteries.
3.Do not mix alkaline, standard (carbon zinc) or rechargeable (nickel cadmium) batteries.
4.Please take out batteries when not in use.
5.Non-rechargeable battery is not to be recharged.
6.Only batteries of the same or equivalent type as recommended are to be used.
7.Batteries are to be inserted with the correct polarity.
8.Exhausted batteries are to be removed from the toy