Energizer silver oxide batteries are specially designed to meet the varying power requirements of a wide variety of applications such as analog and digital watches, medial instruments, calculators, toys, and other portable electronics.  However, they are primarily used for watch and calculater applications. They are ideal replacement batteries for Sony, Energizer, Maxell, Seiko, Renata, Varta, Rayovac, Eveready, Duracell and other battery brands.

Sodium hydroxide (NaOH) electrolyte (low drain) cells are primarily designed for low drain continuous use over long periods of time, typically up to five years.  This is commonly found in analog watch applications.  Potassium hydroxide (KOH) electrolyte (high drain) cells are designed for continuous low drains with periodic high drain pulse demands.  This is typical of applications such as LCD watches with backlight, analog watches with alarms, and calculators.  Life expectancy in these applications is typically between one to three years. 

Advantages of Energizer Silver Oxide Batteries:

• Higher Voltage than comparable mercury batteries
• Flatter discharge curve than alkaline manganese dioxide batteries
• Good low temperature characteristics
• Good resistance to shock, vibration, and acceleration
• Low and essentially constant internal resistance
• Excellent service maintenance; in excess of 90% after storage at 70°F for 5 years
• Available in voltages ranging from 1.55 to 6.2 volts and a variety of sizes

Battery Construction:

Silver Oxide batteries are currently produced with flat circular cathodes and homogeneous gelled anodes.

Cathodes are a mixture of AG₂O and conductor.
Anodes are a gelled mixture of amalgamated zinc powder and electrolyte.
Separators of specialty materials prevent the migration of tiny solid particles in the battery.
Gaskets are insulators and sealants molded of nylon.
Can is the exterior battery surfaces made of nickel to resist corrosion and insure electrical contact.

Electro-Chemistry:

Silver oxide batteries contain a cathode of silver oxide with a low percentage of manganese dioxide and graphite, an anode of high surface area zinc, and a highly alkaline electrolyte consisting of either sodium hydroxide or potassium hydroxide.  The open circuit voltage of silver oxide batteries is 1.6 volts.  The operating voltage at typical current drains is 1.55 volts or more.  Silver oxide batteries offer a higher flat operating voltage characteristic than mercuric oxide batteries.  The type of electrolyte used with silver oxide batteries determines their rate or current carrying capability.  Under heavy drains, potassium hydroxide (KOH) electrolyte offers less resistance to the current flow and allows the battery to operate at higher efficiency than a sodium hydroxide (NaOH) electrolyte.  At low drains both electrolytes operate with equal efficiency.  Silver oxide batteries containing a KOH electrolyte are more difficult to seal than those containing at NaOH electrolyte.  As a result, NaOH batteries are typically more salt resistant than similar sized KOH batteries.   Both batteries however, exhibit excellent long term salt resistance.

Cross Reference	Model (pricing)	Rated Capacity (mAh)	Nominal Voltage	I.E.C.	Weight (gram)	Diameter (mm)	Height (mm)
SR43SW	301	110	1.55	SR1142SW (SR43)	1.7	11.6	4.2
SR44SW	303	175	1.55	SR1154SW (SR44)	2.55	11.6	5.6
SR754SW	309	70	1.55	SR48	1.13	7.9	5.4
SR716SW	315	21	1.55	SR67	0.33	7.9	1.65
SR516SW	317	11.5	1.55	SR62	0.19	5.8	1.65
SR527SW	319	18	1.55	SR64	0.31	5.8	2.7
SR616SW	321	14	1.55	SR65	0.28	6.8	1.65
SR731SW	329	36	1.55	SR731SW	0.57	7.9	3.1
SR512SW	335	5	1.55	SR512SW	0.14	5.8	1.25
SR416SW	337	7.5	1.55	SR416SW	0.12	4.8	1.65
SR614SW	339	13.5	1.55	SR614SW	0.22	6.8	1.45
SR714SW	341	13.5	1.55	SR714SW	0.3	7.9	1.45
SR1136SW	344	105	1.55	SR42	1.6	11.6	3.6
SR712SW	346	9	1.55	SR712SW	0.23	7.9	1.3
SR1136W	350	105	1.55	SR42	1.6	11.6	3.6
SR44W	357	175	1.55	SR1154W (SR44)	2.3	11.6	5.4
SR721W	361	23	1.55	SR58	0.42	7.9	2.1
SR721SW	362	23	1.55	SR58	0.42	7.9	2.1
SR621SW	364	20	1.55	SR60	0.31	6.8	2.15
SR1116W	365	32	1.55	SR1116W	0.7	11.6	1.65
SR1116SW	366	33	1.55	SR1116SW	0.7	11.6	1.65
SR920W	370	34	1.55	SR69	0.66	9.5	2.1
SR920SW	371	34	1.55	SR69	0.66	9.5	2.1
SR916SW	373	26	1.55	SR68	0.53	9.5	1.65
SR626W	376	26	1.55	SR66	0.42	6.8	2.6
SR626SW	377	26	1.55	SR66	0.42	6.8	2.6
SR521SW	379	14	1.55	SR63	0.25	5.8	2.15
SR1120SW	381	49	1.55	SR55	0.93	11.6	2.1
SR41SW	384	41	1.55	SR41	0.57	7.9	3.6
SR43W	386	120	1.55	SR43	1.7	11.6	4.2
387	387S	60	1.55	SR42	1.0	11.6	3.6
SR1130W	389	85	1.55	SR54	1.35	11.6	3.0
SR1130SW	390	85	1.55	SR54	1.35	11.6	3.0
SR1120W	391	49	1.55	SR55	0.93	11.6	2.1
SR41W	392	41	1.55	SR41	0.57	7.9	3.6
SR48W SR754W	393	70	1.55	SR48	1.13	7.9	5.4
SR936SW	394	60	1.55	SR936SW	1.11	9.5	3.6
SR920SW	395	52	1.55	SR57	0.79	9.5	2.7
SR726W	396	32	1.55	SR59	0.51	7.9	2.6
SR726SW	397	32	1.55	SR59	0.51	7.9	2.6
SR920W	399	52	1.55	SR57	0.79	9.5	2.7
SR44W	EPX76	200	1.55	SR44	2.27	11.6	5.4
Cross Reference	Model	Rated Capacity	Nominal Voltage	I.E.C.	Weight	Diameter	Height

 
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