Description

Maxell LR Series Button Battery

Maxell LR Series Button Battery silver oxide batteries are characterized by high energy per unit volume and stable operating voltage. As a result, they are used as a power source for applications such as quartz watches.

Maxell is the first company in Japan to successfully market button-type silver oxide batteries and has many years of experience and know-how. Also, in consideration of the environment, all products are designed to use zero mercury. For more information, please contact Maxell.

The button-type silver oxide battery uses silver oxide (Ag2O) as its positive active material and zinc (Zn) as its negative active material. Potassium hydroxide (KOH) (W-type) or sodium hydroxide (NaOH) (SW-type) is used as an electrolyte.

**Battery reactions (LR Button Battery)**
Total reaction :	2MnO2+Zn+H2O ? 2MnOOH+ZnO

Features

Stable discharge characteristics
A discharge curve during discharge supplies a stable voltage until the end of the discharge life.
High-energy density
A silver oxide battery’s high-energy density per unit volume provides approx. twice the amount of energy capacity as button-type alkaline batteries.
Excellent discharge load characteristics
Alkaline electrolyte is used to provide excellent discharge load characteristics. Depending on the composition of the electrolyte, two models are available; a low-drain type (SW type) for analog watches and a high-drain type (W type) for multi-function watches (which incorporate an alarm and a light), medical equipment, etc.
Superior leakage^* resistance
Featuring Maxell’s original leak-resistant processing, the SR battery has excellent leakage resistance, which suppresses the electrolyte from rising up and seeping out — a basic phenomenon of alkaline electrolytes.
(* Leakage is defined as an unintended escape of liquid from a battery.)
Taking environment in consideration
As one of its measures to reduce the environmental impact, Maxell draws upon its original technology to realize longer-lasting, superior leakage-resistant characteristics without using mercury and lead.

Applications

Toys
LED lights
Crime prevention buzzers
Medical thermometers

Specifications

Model	Nominal Voltage (V)	Nominal Capacity (mAh)*	Nominal Discharge Current (µA)	Diameter (mm)	Height (mm)	Weight (g)	for Use
LR44	1.5	110	100	11.6	5.4	1.8	LR Button Battery
LR43		75			4.2	1.5
LR1130		45			3.05	1.2
LR1120		55			2.05	0.9
LR41		25	70	7.9	3.6	0.6

* Nominal capacity indicates the duration until the voltage drops to 1.2V when discharged at a nominal discharge current at 20 deg. C.

Description

Maxell LR Series Button Battery

Battery reactions (LR Button Battery)

Total reaction :

2MnO2+Zn+H2O ? 2MnOOH+ZnO

Features

Stable discharge characteristics
A discharge curve during discharge supplies a stable voltage until the end of the discharge life.

High-energy density
A silver oxide battery’s high-energy density per unit volume provides approx. twice the amount of energy capacity as button-type alkaline batteries.

Excellent discharge load characteristics
Alkaline electrolyte is used to provide excellent discharge load characteristics. Depending on the composition of the electrolyte, two models are available; a low-drain type (SW type) for analog watches and a high-drain type (W type) for multi-function watches (which incorporate an alarm and a light), medical equipment, etc.

Superior leakage^* resistance
Featuring Maxell’s original leak-resistant processing, the SR battery has excellent leakage resistance, which suppresses the electrolyte from rising up and seeping out — a basic phenomenon of alkaline electrolytes.
(* Leakage is defined as an unintended escape of liquid from a battery.)

Taking environment in consideration
As one of its measures to reduce the environmental impact, Maxell draws upon its original technology to realize longer-lasting, superior leakage-resistant characteristics without using mercury and lead.

Specifications

Model

Nominal
Voltage
(V)

Nominal
Capacity
(mAh)*

Nominal
Discharge
Current
(µA)

Diameter
(mm)

Height
(mm)

Weight
(g)

for Use

LR44

1.5

110

100

11.6

5.4

1.8

LR Button Battery

LR43

4.2

1.5

LR1130

3.05

1.2

LR1120

2.05

0.9

LR41

7.9

3.6

0.6

* Nominal capacity indicates the duration until the voltage drops to 1.2V when discharged at a nominal discharge current at 20 deg. C.

Maxell LR Series Button Battery

Product Note:

Description