Galilio OPPO F7 & A3 (BLP661) Li-Polymer Replacement Battery The Galilio BLP661 replacement battery uses high-quality lithium-polymer cells to bring your OPPO F7 & A3 back to reliable, all-day power. With up to 3400mAh typical capacity (3300mAh rated), it supports smooth performance for calls, social media, streaming, and everyday apps. The stable 3.85V output with a 4.35V charging limit ensures safe, efficient charging and long-term battery protection. Designed for precise fit and dependable performance, it’s the perfect solution for replacing worn or failing original batteries. Specifications Brand: Galilio Model: BLP661 Compatible Device: OPPO F7, OPPO A3 Battery Type: Lithium-ion Polymer (Li-Polymer) Rated Capacity: 3300mAh (12.70Wh) Typical Capacity: 3400mAh (13.09Wh) Nominal Voltage: 3.85V Charging Limit Voltage: 4.35V