Maxell SR Series Silver Oxide Battery - High Precision Power Source

Description

Precision instrumentation requires a power source that does not falter under load. The Maxell SR Series Silver Oxide Battery utilizes silver oxide as the positive electrode active material and zinc as the negative electrode, suspended in an aqueous alkali electrolyte solution. This specific chemical composition allows the battery to maintain a stable operating voltage throughout its service life, a crucial factor for analog quartz watches requiring high timekeeping accuracy.

Maxell offers a comprehensive lineup that includes both low-drain (sw) and high-drain (w) configurations, allowing engineers to match the specific power consumption profiles of their devices. Beyond performance, Maxell is committed to environmental sustainability. The entire SR lineup is manufactured without the use of mercury or lead, meeting modern environmental standards while reducing ecological impact.

Brand

Maxell

Maxell was formed in 1960, when a dry cell manufacturing plant was created at the company's headquarters in Ibaraki, Osaka. In 1961, Maxell Electric Industrial Company, Limited was created out of the dry battery and magnetic tape divisions of Nitto Electric Industrial Company, Limited (now Nitto Denko Corporation).

On March 18, 2014, the company was listed on the First Section of the Tokyo Stock Exchange. In 2013, Maxell, Ltd. acquired Hitachi Consumer Electronics, Co., Ltd.’s projector design, development and manufacturing assets and resources. On October 1, 2019, Maxell Corporation of America announced it would assume responsibility for all operations related to both Hitachi- brand and Maxell-brand projector products and accessories in the North American market.

Specifications

Model	Nominal Voltage (V)	Nominal Capacity (mAh)*	Nominal Discharge Current (µA)	Diameter (mm)	Height (mm)	Weight (g)	for Use
SR44W	1.55	165	200	11.6	5.4	2.2	High drain type [Use] Digital Watch
SR43W	1.55	125	200	11.6	4.2	1.8
SR1130W	1.55	79	100	11.6	3.05	1.2
SR1120W	1.55	55	100	11.6	2.05	1.0
SR936W	1.55	75	100	9.5	3.6	1.1
SR927W	1.55	60	100	9.5	2.73	0.8
SR927W	1.55	57	100	9.5	2.73	0.8
SR920W	1.55	39	100	9.5	2.05	0.6
SR41W	1.55	39	50	7.9	3.6	0.7
SR726W	1.55	28	50	7.9	2.6	0.5
SR721W	1.55	25	50	7.9	2.15	0.5
SR626W	1.55	28	50	6.8	2.6	0.4
SR621W	1.55	18	50	6.8	2.15	0.3
SR44SW	1.55	165	200	11.6	5.4	2.2	Low drain type Long life[Use] Analog Watch Thermometer
SR43SW	1.55	125	100	11.6	4.2	1.7
SR1136SW	1.55	100	100	11.6	3.6	1.6
SR1130SW	1.55	83	100	11.6	3.05	1.2
SR1120SW	1.55	55	100	11.6	2.05	1.0
SR1116SW	1.55	29	50	11.6	1.65	0.7
SR936SW	1.55	71	100	9.5	3.6	1.1
SR927SW	1.55	55	100	9.5	2.73	0.8
SR927SW	1.55	50	100	9.5	2.73	0.8
SR920SW	1.55	45	50	9.5	2.05	0.7
SR920SW	1.55	35	50	9.5	2.05	0.6
SR916SW	1.55	26.5	50	9.5	1.65	0.5
SR914SW	1.55	22	35	9.5	1.45	0.45
SR41SW	1.55	45	50	7.9	3.6	0.7
SR731SW	1.55	36	50	7.9	3.1	0.7
SR726SW	1.55	33	50	7.9	2.6	0.5
SR721SW	1.55	25	30	7.9	2.1	0.5
SR716SW	1.55	23	30	7.9	1.68	0.3
SR712SW	1.55	10	20	7.9	1.29	0.25
SR626SW	1.55	30	30	6.8	2.6	0.4
SR626SW	1.55	27	30	6.8	2.6	0.4
SR621SW	1.55	23	30	6.8	2.15	0.3
SR621SW	1.55	18	30	6.8	2.15	0.3
SR616SW	1.55	16	20	6.8	1.65	0.3
SR616SW	1.55	15	20	6.8	1.65	0.3
SR527SW	1.55	17	30	5.8	2.7	0.3
SR521SW	1.55	16	20	5.8	2.15	0.2
SR521SW	1.55	13	20	5.8	2.15	0.2
SR516SW	1.55	12.5	20	5.8	1.65	0.2
SR512SW	1.55	5.5	5	5.8	1.25	0.14
SR421SW	1.55	12	20	4.8	2.15	0.17
SR416SW	1.55	8.3	10	4.8	1.65	0.12
SR44	1.55	165	200	11.6	5.4	2.2	General use
SR43	1.55	125	100	11.6	4.2	1.8
SR1130	1.55	79	100	11.6	3.05	1.2
SR1120	1.55	55	100	11.6	2.05	1.0
SR41	1.55	39	50	7.9	3.6	0.7

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

Features

High energy generation per unit volume for compact device architecture
Stable operating voltage characteristics for consistent instrument precision
Environmentally friendly composition containing 0% Mercury and Lead
Available in low-drain (sw) and high-drain (w) variations to suit different load requirements
Manufactured with over 45 years of experience and quality assurance