Working fine as described
Akari 4V 0.5Ah Sealed Lead Acid Rechargeable Battery For Mosquito Bat / Toys
The stick is too small
GP Ultra Alkaline is especially designed for the most popular portable electronic devices. These high performance batteries have a superb operating time in all kinds of battery powered devices.
Superb operating time
* Shelf life up to 10 years
* Full range of sizes