Based in Taiwan and founded in 2002, Annren Technologies develops and produces components for electric vehicles.  

Annren specializes in battery-compatible DC/DC electrical power converters, on-board charges, integrated all-in-one high-voltage control units, power and battery distribution units, and fan cooling and liquid cooling systems.

Annren designs and manufactures custom system solutions to EV OEM customers globally, according to SAE / IEC standards. We provide our trusted customers around the world with safety, reliability, trust, and service.  

Please feel free to contact us for product inquiries or customized projects.  

Product Categories


On(off) Board Chargers

LV(HV) DC/DC Converters



HV Connector

YEONHO Connector

Battery / BTMS

Energy Storage System (ESS)

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