OEM service is one of Sunwith’s business lines. We accept custom make order for up to 1,000 quantities and OEM order for more than 200. Wide range & up-to-date external battery designs make our OEM serivce attractive. Just send us your drawings or specific requirements and we will make the perfect molds for you. We make business simple, enjoy our OEM service!.


Sunwith is one of biggest power bank manufacturer & wholesaler in China. Buy direct form Sunwith factory and save up to 50% than market price. Bulk buyers get big discount. We provide you cost-effective products with superb quality. Want to buy in a low price? Make a good bargain from Sunwith power bank bulk buy and get your budget saved now!


Sunwith lays stress on small wholesalers and retailers in the global market. High quality products: CE/Rohs/FCC GET! Unparalleled customer service: 24 hours online service. Fast shipment:DHL/FEDEX 5-7days at most. Wholesale price: for those up to 200 quantities per order. No business is too small. Start a smart business and brilliant future with Sunwith today.

Best-Selling External Battery

  • SW526 External Battery
  • 123test_SW826 External Battery
  • test asdfasd
  • SW584 External Battery
  • SW560 External Battery

What clients are saying:

  • I am very pleased with the quality. The Iphone external batteries come with various designs and my customers can always choose one they love. They also get good feedbacks. –Travis from America
  • I would recommend your power bank to my customers for they are incredibly reliable and practical. Sunwith is one of my trusted power bank suppliers in China. –Ashley from Australia

Contact us: