GS Yuasa’s Lithium-ion Battery Chosen for Kinki Sharyo’s “Smart BEST” Battery-powered Railway Vehicle


GS Yuasa Corporation (Tokyo Stock Exchange: 6674) announced today that its storage battery railway vehicle drive system using industrial lithium-ion battery module LIM30H-8A has been chosen by The Kinki Sharyo Co., Ltd. (Tokyo Stock Exchange: 7122) to power its “Smart BEST” self-charging battery-powered trains.

GS Yuasa and Kinki Sharyo collaborated on the development of the lithium-ion battery drive system for the “Smart BEST” series of railway vehicles. The system combines GS Yuasa’s lithium-ion batteries, whose high charge-discharge current makes them ideal for railway applications, with Kinki Sharyo’s sophisticated railway vehicle technologies to create the energy-efficient, highly advanced “Smart BEST” series of self-charging battery-powered trains.

“Smart BEST” comprises a small diesel engine generator used as a power source and high-capacity lithium-ion batteries. The system boasts highly-efficient recharging, as the high-capacity batteries are utilized for drive power and the diesel engine generator is used only to replenish discharged electricity. As a result, the per-vehicle engine output can be reduced by between a quarter to a third compared with the output of conventional railway vehicle diesel engines. The self-charging, battery-powered “Smart BEST” railway vehicles developed by Kinki Sharyo are now being tested by West Japan Railway Company on its Sanin Line.

Currently, a number of leading railway operators are conducting field tests on environmentally friendly railway vehicles equipped with storage batteries. In the future, the technology is expected to be adopted for mass-produced railway vehicles. GS Yuasa will continue to contribute to lowering the environmental burden by promoting the expanded adoption of industrial-use lithium-ion batteries for railway vehicles and stationary power storage systems for railway operations.

Features of the LIM30H-8A Lithium-ion Battery Module
1. High current charge/discharge performance
The maximum current capacity is 600A and the continuous current capacity is 100A, which ensures stable charge and discharge performance.

2. High input-output performance and longer operating life through reduced internal resistance

3. Lightweight, compact design
The use of plastic resins in the outer module casing enables a lightweight, compact design. The plastic resins have superior insulation properties, enabling them to be used even under high voltage conditions.

4. Standard battery-monitoring system to continuously monitor battery status
A proven battery-monitoring device for industrial-use lithium-ion batteries is a standard feature. The device continuously monitors the voltage of all cells as well as the module temperature. The device has a function to send battery data to the charging device and the system.
By adding a GS Yuasa battery management unit (BMU), battery data can also be output to external devices.


LIM30H-8A Lithium-ion Battery Module Specifications

Dimensions (mm)

W:231 x D:389 x H:147

Mass (kg)

approx. 20

Nominal voltage (V)


Nominal voltage

per cell (V)


Capacity (Ah)


Operating voltage range (V)

23.2 ~ 33.2

Maximum current (A)


Direct current (A)



range (C)

0 ~ 45

Monitoring device

All-cell monitoring;

Module temperature monitoring



1. LIM30H-8A Lithium-ion Battery Module






2.Kinki Sharyo’s “Smart BEST” Self-charging, Battery-powered Train






About GS Yuasa Corporation
GS Yuasa Corporation was established in 2004 by the merger of Japan Storage Battery Co., Ltd and YUASA Battery. GS Yuasa develops and manufactures batteries and power supply systems for a wide range of special applications. The company’s high-performance, high-quality batteries are installed in sea, land, and aerospace environments, from depths of 6,500 meters below the ocean surface to 36,000 kilometers in space. (Japanese) (English)

About GS Yuasa Technology, LTD (GYT)
GS Yuasa Technology is a subsidiary of GS Yuasa Corporation located in Kyoto, Japan. GYT designs and manufacturers large format lithium ion cells for aerospace and specialty applications.
1-37 Osadano-cho Fukuchiyama-shi
Kyoto pref. 620-0853, Japan
Phone: 81-773-20-2630

About GS Yuasa Lithium Power (GYLP)
GS Yuasa Lithium Power, Inc. is the United States subsidiary of GS Yuasa focused on large format lithium ion battery system manufacturing for US customers. Primary products are lithium-ion battery systems for aerospace, undersea, and defense applications.

For additional information, please contact:

GS Yuasa Lithium Power, Inc

1150 Northmeadow PKWY Suite 118 Roswell, GA 30076 USA 888.GSYUASA (888.479.8272) 678.892.7501 (fax)