We Promax meets the highest manufacturing standards, ensuring superior product performance worldwide. All our batteries undergo rigorous quality control tests that ensure exceptional operation and superior consistency, providing outstanding value for consumers every hour of every day in a myriad of portable power uses all over the world.

To ensure the quality of our products, we have prepared in-process quality control system, labeling and tracing regulations, protection control system, supervising and measuring control regulations, defective products control rules, preventive and correction regulations.