Working fine as described
Akari 4V 0.5Ah Sealed Lead Acid Rechargeable Battery For Mosquito Bat / Toys
The stick is too small
Amptek 6V 7AH Rechargeable VRLA Battery for Toys & Scientific Projects
Product size is 15 cm x 3.5 cm x 9 cm. Packing size is 16 x 4 x 10 cm. Net weight is 1 kg; battery 6v 7ah. Suitable for kids ride on bikes and cars.