HYNN, as a professional after-sales team, ensures industry information and are dedicated to provide you with excellent information products and services.

As a green energy industry, the battery testing equipment manufactured by our company is developed step by step. We have accumulated rich and outstanding experience in many years of manufacturing and production practices, since reviewing the course and examining the results are not what can be accumulated and achieved in a few days. We have a group of excellent technology experts and a sound after-sales team, to provide customers with high-quality technology products with professional after-sales guarantee. Our marketing philosophy is meticulous service, and the quality of excellence.



Spare parts

Major spare parts centers (north China, east China and south China)

Complete-set spare parts reserve

Logistics process, nationwide 24-hour spare parts delivery



Full-time after-sales team

Senior engineer team, more than 5 years of maintenance work experience


Three-dimensional support

After-sales emergency support line

Remote support: desktop, Telnet, and conference call

On-site service: 7*24 hours; nationwide coverage; 24-hour after-sales service



Response within 2 hours

Arriving at the site within 48 hours for emergency fault


After-sales hotline: +86-755-33030163

Technical support: support@hynn.com.cn