COROS Battery Co., Ltd. which is located in Korea has launched “COROS” Brand 3.6V Li-SOCl2 Batteries (Lithium Thonyl Chloride Batteries) and 3.0V Li-MnO2 Batteries (Lithium Manganese Batteries) in 2019.


The meaning of “COROS” is originated from Spanish “COROS” (Chorus in English).  We wish that COROS Batteries are the best chorus and matching partner to electronics devices.


COROS Battery key members have outstanding experience in the design, development, production, quality control and engineering sales of Lithium primary batteries for last 25 years. Thus, we have made some technical and supply collaboration with Korean contractors and Chinese partners to supply customers with the best quality lithium primary batteries.  It is known that lithium batteries take a long time to get product assurance.  However, COROS Battery have long term experience in primary lithium batteries and can reduce the product reliability period with well known technology and accelerated test period.


COROS 3.6V Lithium Thionyl Chloride Batteries are Korean made goods with Bobbin structure of 1/2AA, 2/3AA, AA, A, C, D, and D3.9V sizes for low and medium current applications and with Spirally Wound structure of C and D sizes for high current applications.  Also, we are under product expansion of high temperature lithium batteries with bobbin and spirally would type covering +100℃ +130℃, +150℃ or +165℃.


COROS 3.0V Lithium Manganese Batteries are Chinese made goods but with highly qualified partners under good production & control system and good reputations.  We have CR123A, CR-2, CR17450, CR17505, CR14250(Bobbin only).


COROS Hybrid Batteries are based on Li-SOCl2 Bobbin cells + HPC (Hybrid Pulse Capacitor), LIC (Lithium Ion Capacitor) or EDLC (Electronic Double Layer Capacitor).  Li-SOCl2 Bobbin Batteries have good advantage of high voltage, low self-discharge, long lifetime, high safety whereas have voltage drop issue against high pulses for data communication. Thus, upon customer usage to keep stable working voltage against high pulse currents regardless temperature range, COROS provides Li-SOCl2 Bobbin cells + HPC, LIC or EDLC solution.

Lithium primary battery manufacturer korea

COROS Battery also operates own pack assembly line.  It gives customers more convenience and best service with final inspection for industrial applications with the usage of terminals, wire&connectors and custom type battery pack.


With pack assembly experience, COROS Battery can provide customers Li-Ion or Li-Polymer battery cell and pack solutions in various applications like electronic devices, small e-cars and etc.


COROS Battery is produced in fully automated production under IATF16939, ISO9001 and ISO14001 certified quality management system.