Dear Mr. Malkhaz Achelashvili Thank you for your attention and feedback on APC UPS products. Regarding your concern about the built-in battery being of the LEOCH brand, we would like to explain as follows: LEOCH International is one of the world’s leading manufacturers of lead-acid batteries and has maintained a long-term and formal supply chain partnership with APC. Its battery products have undergone strict performance testing, compatibility verification, and safety certifications (such as UL, IEC and other international authoritative certifications) by APC, and are fully compatible with APC UPS’s intelligent battery management system. In terms of endurance, cycle life, and operational stability, they meet the same quality standards as APC original batteries (such as the RBC series). APC selects qualified high-quality battery suppliers (such as Yuasa, LEOCH, etc.) in different batches or regions based on global supply chain optimization and regional configuration needs. However, all