How to Choose a Solar Inverter and Battery OEM/ODM Manufacturer in China: A Sourcing Guide for Distributors
This article is aimed at overseas distributors, providing guidance on how to select OEM/ODM factories for photovoltaic inverters and energy storage batteries in China. Firstly, distinguish between OEM (customized according to customer design) and ODM (OEM using existing platforms), and then screen according to eight items: certification traceable to the target market (CE/UKCA/IEC, etc.), real firmware development capability (BMS communication protocol), manufacturing and QC depth, product coverage, warranty and after-sales, business terms (MOQ/lead time/payment), standardized import process, and regional reference customers. At the same time, it is reminded to be alert to red flag signals such as certificates without numbers, specifications, refusal of third-party inspection, and significantly low quotations. The DEMUDA five step import process (demand → solution → technical confirmation → production delivery → after-sales) is used as a mature case.
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