แบตเตอรี่ลิเธียมไอออนแท้ 14.4v 12.8Ah 18650 4s2p สำหรับ Pro M9 Pro M8 Pro M7 R1 เครื่องดูดฝุ่นหุ่นยนต์แบบชาร์จได้

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