Restore your robot vacuum's marathon cleaning power with our premium BRR-2P4S-5200S replacement battery. Engineered as a direct, high-capacity upgrade, this 14.4V, 5600mAh Li-ion pack delivers extended runtime for compatible Roborock, Xiaomi, and Xiaowa models. Featuring a precise 4-prong connector and a built-in smart protection chip, it ensures a safe, secure fit and guards against overcharge, overheat, and short circuits. Perfect for reviving models like the Roborock S8, S7 MaxV, S6, S5 Max, Q7, and Xiaomi Mijia E4/E5. Key Benefits: WIDE COMPATIBILITY: Designed for dozens of popular Roborock S/Q/T series, Xiaomi Mijia E series, and Xiaowa C/E series robot vacuums. EXTENDED RUNTIME: The 14.4V voltage combined with a 5600mAh high capacity provides stable power output for significantly longer cleaning sessions. PLUG-AND-PLAY INSTALL: Standard 4-pin plug matches the original battery's size and interface exactly. Easy installation with no modifications needed. MULTIPLE SAFETY PROTECTIONS