Identify the reference
Jiayu lists a battery management device under a heading spelled Wi-lQ; the pictured label reads Wi-iQ. EnerSys describes Wi-iQ as a battery monitoring device.
Confirm the version
The Jiayu catalogue does not identify the generation or part number. Confirm the exact device, battery system, sensors and software before ordering. The listing does not establish authorisation.
Prepare a useful purchase request
Provide the complete product or truck identification, quantity, application and delivery destination. Include clear photographs of the existing label and connections where relevant. Ask the supplier to identify the exact item, documentation, condition, included scope, lead time and warranty in its written response.
Compare evidence before deciding
Catalogue descriptions are attributed to the supplier. The code alone does not verify origin, current inventory, certification, performance or compatibility. Compare the dated supplier offer with the actual machine documentation and resolve any discrepancy before ordering.
Source
http://www.hawker.cn/ShowProduct_1084.html