The key to our success is "Good Product or service High quality, Reasonable Rate and Efficient Service" for 51.2V300Ah, Lifepo4 Battery 12v 400ah , 48v Lifepo4 Battery Pack , 48v Lifepo4 Battery ,Solar Usb Battery Pack . Our service concept is honesty, aggressive, realistic and innovation. With your support, we will grow much better. The product will supply to all over the world, such as Europe, America, Australia,Georgia, Kuala Lumpur,Mexico, Ecuador.We are always creating new technology to streamline the production, and provide goods with competitive prices and high quality! Customer satisfaction is our priority! You can let us know your idea to develop unique design for your own model to prevent too much similar parts in the market! We will offer our best service to satisfy all your needs! Please contact us right away!