AAA carbon batteries from the "SUPER ENERGY" brand, manufactured by Haodesheng [1, 5]. Type: Carbon (zinc-carbon) batteries [1, 5]. Size: AAA (SUM4 R03P). Voltage: 1.5 V. Use: Suitable for low-power devices such as remote controls, flashlights, and watches [8, 17]. Advantages: An economical and reliable choice for devices that do not require high power consumption [9, 17].