Working fine as described
Akari 4V 0.5Ah Sealed Lead Acid Rechargeable Battery For Mosquito Bat / Toys
The stick is too small
The HBL OPTIMUZ 18AH 12V SMF VRLA Battery, also known as OPTI 18, is a sealed maintenance-free (SMF) valve-regulated lead-acid (VRLA) battery with a nominal voltage of 12 volts (V) and a capacity of 18 ampere-hours (Ah).
This type of battery is commonly used in a wide range of applications, including uninterruptible power supplies (UPS), emergency lighting, security systems, medical equipment, and other backup power applications. It is designed to provide reliable and long-lasting power in demanding environments and applications.
The OPTI 18 battery features a sealed construction that eliminates the need for regular maintenance and prevents the leakage of electrolyte. It also has a low self-discharge rate, which means that it can hold its charge for extended periods without requiring recharging.
Overall, the HBL OPTIMUZ 18AH 12V SMF VRLA Battery is a high-quality and reliable battery that can provide dependable backup power in a variety of applications.