APP (Advanced Professional Power) Battery operates as a manufacturer and supplier of batteries. The company manufactures Lithium-ion Phosphate (LiFePO4)  batteries for RV, power storage, automotive, marine, mobility, custom solutions and more. App Battery Company operates as a subsidiary of E&J Technology Group Co., Ltd.

We have a very strong focus on quality, all battery products are manufactured in ISO certified environments. Our Cylindrical /Prismatic Lithium-Ion Cells and stored energy solution surpass industry standards around the world. Reliable cells & Advanced BMS System are built Cylindrical or Prismatic Lithium Ion Cells.

APP Battery offers an extensive product portfolio. More and more businesses are seeking this expertise and now our customers can benefit from the exceptional quality from E&J technical services. We offer added value benefit from our high-quality product which is receiving excellent feedback from customers and press.