Additional Details ------------------------------ Bullet point: ?Please ensure both model and battery part number are matched with your device before purchasing( you can find related information in product description). If you are still not sure whether the model matches, please contact customer service. Product description: ?CS Cameron Sino? CS Cameron Sino is a brand focusing on sell battery, we aim at supplying high-quality professional battery products. ?Fit for Brand:Falk ?Fit Model: FA Z10, NEO 620, NEO 620 LMU, NEO 640, NEO 640 LMU ?Compatible Models: SR454362 ?Notice Before Purchase - Be carefully check the model number of your device and the part number of your original Battery to see if this Battery is compatible with your device. - A new battery will achieve its best performance after 2 or 126 complete cycles of charge discharge. - When you install it, be sure the connector has been properly connected to your device. - Do not use low quality third-party adapter charger to charge your device, that will shorten the battery's life. ?Contact us If you have any questions or any issues when using our product, please send us a message, we will reply you as soon as possible.