Made by GS Yuasa
GS Yuasa cars
For JapaneseBatteries
compatible withidling-stop
EFB-battery(EPIY)
vehiclesExplanatory materials
Explanatory materials

Three features of EPIY Series◆ 1 - Evolved Next-Generation Battery
・ Compatible with the latest vehicles
・ Adopts the latest technology◆ 2- Wide range of compatibility
・ Able to be mounted both on STOP & START and regularvehicles・ Excellent quick charge performance◆ 3 - Made by GS Yuasa, a reliable Japanese brand・ No. 1 of battery share in Japan©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】

21. Evolved Next-Generation Battery
Correspond with the latest automaker’s specification requirements

Adopted into new cars by all Japanese automakers ※Responds to evolving state-of-the-art STOP & STARTvehicles.
Allows start – stop and other emission reduction systems tooperate to their full potential.
※ Including 1 OEM and co-developed vehicles

With the latest technology

Excellent STOP & START life and quick charge
performance. Suitable for use in various environments.

©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】

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2. Suitable for many vehicles
Wide range of compatibility

Able to be mounted both on STOP & START and regularvehicles
Sales Benefits★ Reduction of inventory burden, reduction of missed sales opportunities★ Preventing troubles by installing normal products on STOP & START vehicles

Adapt to the evolution of STOP & START generations★ Supports vehicle control by the latest Japanese automakers

Excellent quick charge performance

Even in short-distance operation the battery is quickly
charge extending service life
©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】

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3. Trusted Brand GS Yuasa
No. 1 of battery share in Japan
No.1 Domestic aftermarket share ※1
No.1 Share of new cars in Japan ※2
No.1 Share of new battery for START & STOP vehicles ※3

Battery: Made in Japan by GS Yuasa

It has a 100-year history.
It also produces batteries for the International
Space Station, submarines and emergency power supplies.
※1 In the 2018 Domestic Automobile Repair Battery Share Survey by Domestic Research Companies※2 In a 2018 investigation of battery share for new vehicles by domestic research companies※3 In 2018, a survey by domestic research companies on battery shares for new vehicles for STOP &START vehicles in Japan©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】5

Details of EPIY Series Technologies
ULL structure
ULL (Ultra Long Life) structure is adopted for internalelements.
Allows start – stop and other emission reduction systems
to operate to their full potential.

Electrolyte lithium
formulation

Optimization ofcarbon volume
Lead powder

Optimization of carbon quantity andlithium formulation within electrolyte
liquid greatly improve charge acceptance.

Carbon©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】6

Details of EPIY Series Technologies
New separator
By forming a new rib on the negative pole side of the separator as well, thereaction of the pole plate as a whole is improved. This reduces electrolyte tostratification prolong battery life.

Trademark application pending for "dual rib separator"©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】

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Details of EPIY Series Technologies
Positive active additive
Adopted additives to strengthen the network of active material particles reduces
the softening of the positive electrode plate and improves durability.

Lattice section

When magnified by anelectromicroscope, theactive matter is a porous
Active material cross section body in which particles
gatherFunction of additives
Additives improve the durabilityof the positive plate

Withoutadditives

Additives
available©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】

8STOP & START life over 200%
New separator

Increase in thenumber of plates
ULL structure

Comparison ofSTOP & START life

STOP & START
life over

EPIY series
Voltage

STOP & START life has
been improved bysuppressing the drop involtage caused bydegradation.
Reduces environmental
impact by reducing fuelconsumption and CO2emissions of STOP &START vehicles.

Positive active additive

Conventional products(battery for STOP & START car)

STOP & START system

operating voltage

Zone where the STOP & START system doesn't work
Period of Use©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】

9Quick Charge Performance over 150%
Electrolyte lithium
formulation

Optimization ofcarbon volume

Increase in thenumber of platesBatteries in STOP & START
vehicles are regularly
discharged and need to be
charged in shorter periods.
Quick charge
Lithium is mixed in theQuick charge performance performance overelectrolyte to improve quickcomparison
charge performance.
It is also beneficial for vehicles
Our standard model
traveling short distances.
Conventional products(Batteries withSTOP & START vehicles)

EPIY series©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】

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Life when installed in regular vehicles over 250%
ULL structure

Increase in thenumber of plates

When EPIY series is mounted on a normal vehicle (non STOP & START), it
achieves an overwhelmingly long life.
As a dual-use model it can also be mounted on standard ignition cars, which arestill prevalent in the market
We can make suggestions based on the keyword “long life”.
●Comparison of life when installed
in non- START & STOP Vehicles

Life when installed innormal vehicles is overOur standard

EPIY series©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】

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High performance rank
Increase in thenumber of plates
Increasing the number of plates increases the reactive surface area and improves
performance.
The load on the active material is dispersed by the increase of the reaction surface
Conventional productIncrease in the numberarea. This improves durability.
of pole platesInternal structure image

Increase in the numberof plates
Active substance additive(Positive plate)
Hard paste
Dual rib separator©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】12

Features of GS Yuasa EFB-battery (EPIY)★ Improve STOP & START life expectancy by over 200%
Contributing to reduced fuel efficiency and environmental impact by maintaining
performance for a long time

★ Quick charge performance improvement of over 150%
Reducing battery deterioration due to increased electric discharge
Reliable even in cars with frequent short-haul trips★ Life expectancy increased in regular cars by over 250%
The longest battery life in GS Yuasa’s history for passenger cars

★ Suitable for a wide range of models with highperformance requirements
Can be installed in many Japanese automobile manufacturers’s vehicles★ Reliable Japanese-madeHigh quality Japanese-made EFB batteries delivered by GS Yuasa©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】

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Reference: Maintenance of EFB batteries★ Self-discharging and supplementary charging of the battery
The battery discharges naturally (self-discharges) during storage
If you don‘t charge it, you won’t be able to demonstrate 100% of it’s ability.

★ Differences in self-discharge amount between normal JIS batteries
and EFB batteries
Generally, EFB batteries for STOP & START vehicles tend to self-discharge fasterthan ordinary JIS-batteries.

★ Inventory maintenance
STOP & START systems monitor the battery charge status. Therefore, even if a newbattery with low-charge is installed, there is a possibility that STOP & START will
not work. As a guideline, measure the open-circuit voltage once a month andrecharge the battery if it falls below 12.4V.

©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】

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EFB Battery Line Up
EFB Model

JIS Model

20HR

CCARC

M-42R

55B20R

38 Ah

415

56

M-42

55B20L

38 Ah

385

56

N-65

75B24L

50 Ah

500

73

Q-85R

95D23R

66 Ah

590

107

Q-85

95D23L

66 Ah

590

107

S-95R

110D26R

74 Ah

655

124

S-95

110D26L

74 Ah

655

124

T-115R

130D31R

87 Ah

740

145

T-115

130D31L

87 Ah

740

145

©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】

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Reference: Performance rank display
JIS standard (for normal vehicles)

SBA standard (for STOP & START cars)

５５Ｂ２０Ｒ / Ｍ-４２Ｒ
Performance
rank

Size

Terminal
polarity

Size

PerformancerankTerminal
polarity ※※ R type only listed★ What are JIS and SBA standards?
JIS standards: standards established by Japanese Industrial
Standards (normal car battery)
SBA standards: standards established by the Battery Manufacturers
Association (EFB batteries for STOP & START vehicles)

Size

JIS

SBA

★ Performance Ranks for EPIY Series
Differences in Performance Ranks between
Normal and STOP & START Vehicles
Normal cars ••• "Performance rank calculation method after JIS 2006 (New JIS)"For STOP & START Vehicles •••"*New car part numbers"※ The model numbers for new models are shown so that compatibility with new models iseasy to understand.
©2020 GS Yuasa Ltd. All Rights Reserved 【無断複製･転載禁止】

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GS Yuasa
Batteries compatible with idling-stopvehicles
END
Explanatory materials