LR754, AG5, 393 Battery Guide - Characteristics, Specifications, Equivalents

Button batteries such as SR48, AG5/SG5, LR754, SR754, 13/Orange Tab, and 193/309/393 are extensively utilized in various electronic products including watches, toys, LED flashlights, wearable devices, remote controls, and hearing aids. Considering the diverse chemical compositions of these batteries, their labels vary, often causing users confusion.

Catalog

Characteristics and Specifications of LR754, AG5, and 393 Batteries

SR48, AG5/SG5, LR754, SR754, 13/Orange Tab, and 193/309/393 batteries share specific dimensions with a diameter of 7.9 millimeters and a height of 5.4 millimeters.

They come in three types:

• - Alkaline
• - Silver oxide
• - Zinc air

For instance, the Varta 393 battery, often labeled as "V393," can be interchangeably used with similar specifications.

Chemistry	Alkaline	Silver-Oxide	Zinc Air
Nominal Voltage	1.5V	1.55V	1.4 - 1.45V
Cutoff Voltage	0.9-1.0V	1.2V	1.05-1.1V
Notes	Voltage drops over time	Very constant output voltage	Slightly lower voltage, large capacity; hearing aid batteries
Typical Labels	LR754, LR48, L750, AG5, 193	SR754, SR754W, SR754SW, SR754PW, SR48, 309, 393, SG5	13, Orange Tab, ZA13, PR48, 7000ZD
Typical Capacity	45-55 mAh	70-80 mAh	280-300 mAh

Equivalents for LR754 Battery

Alkaline batteries like LR48, L750, LR754, and AG5 possess a nominal capacity of 50-55mAh. As these batteries are used, their voltage gradually decreases, impacting the capacity depending on the device's cut-off voltage. Devices that need silver oxide batteries, such as digital watches and wearable tech, are not recommended to use LR754 alkaline batteries. Because of the voltage stability provided by silver oxide batteries, this is critical to the precise operation of such devices.

However, for everyday items such as toys and flashlights, alkaline batteries like LR48, L750, LR754, or AG5 are adequate choices.

• - They provide a consistent and cost-effective power source.
• - Suitable for less demanding applications where minimal voltage drop is permissible.
• - Ensure consistent performance over time in various daily applications.

Equivalents and Best Practices for Size 13/Orange Tab/PR48 Batteries

Zinc-air batteries, including 13-gauge, orange label, ZA13, PR48, and 7000ZD, have a significantly higher capacity (typically about 280-300mAh) compared to alkalines and silver-oxide batteries, and a slightly lower nominal voltage won't affect their suitability for use in power-hungry devices.

Activating these batteries is a relatively simple process. By removing the orange tab, air enters the battery to initiate the electrochemical reaction. These batteries are predominantly employed in behind-the-ear (BTE) and in-the-ear (ITE) hearing aids, valued for their reliability and capacity. The internal electrolyte's gradual dehydration, leading to battery failure even if unused, prompts one to activate the battery only when ready for immediate use. The storage recommendation is also quite specific—keep it in a cool, dry place and wait to remove the tab when ready to use. This nuanced approach to battery management, widely advocated, has proven beneficial for extending battery longevity in real-world scenarios.

These observations underscore that while zinc-air batteries like Size 13/Orange Tab/PR48 offer substantial energy reserves, tapping into their potential depends heavily on meticulous handling and activation timing. Integrating these best practices into everyday use not only elevates the user experience but also extends the functional life of the batteries, ensuring a more reliable and efficient power source for essential hearing devices.

Safety Concerns of Small Batteries

Small batteries, such as LR48, SR48, 393, AG5, SG5, 13, and Orange Tab varieties, can present various safety hazards due to their compact size and shiny exterior. These characteristics often catch the attention of children and pets. When ingested, these batteries can induce an electrolyte reaction within the body, posing serious risks. Immediate consultation with a medical professional or veterinarian is crucial for appropriate management, as such incidents require prompt and precise intervention.

Specifications Comparison: LR754, AG5, 393, S48, SR754, Orange Tab Batteries

Battery Datasheet	Capacity	Operating Temperature	Annual Self-Discharge Rate	Discharge Current
Duracell D309/D393	80 mAh, 15kΩ down to 1.2V @20°C	0°C to +60°C	≤10% @20°C	103.3 μA, over 15kΩ @20°C
Duracell Size 13 Orange Tab	300 mAh, 1.5kΩ down to 1.1V @21°C, 50%RH	0°C to +50°C	4 years unactivated @21°C	-
Energizer 193 (Obsolete)	53 mAh, 15kΩ down to 0.9V @21°	-	-	83 μA, over 15kΩ @21°C & 1.25V
Energizer 309 (Obsolete)	70 mAh, 13kΩ down to 1.2V @21°C	-	~2% @20°C	119 μA, over 13kΩ @21°C
Energizer 393 (Obsolete)	75 mAh, 10kΩ down to 1.2V @21°C	-	~2% @20°C	155 μA, over 10kΩ @21°C
Energizer Size 13 Orange Tab	289 mAh, down to 1.05V @21°C, 12/3mA (IEC-STD)	-	4 years unactivated	-
muRata SR48	75 mAh, 10kΩ down to 1.2V @23°C	-10°C to +60°C	-	-
Renata 309 SR754W	80 mAh, 20kΩ down to 1.2V @20°C	-10°C to +60°C	≤5% @20°C	78 μA, over 20kΩ @20°C
Renata 393 SR754W	80 mAh, 15kΩ down to 1.2V @20°C	-10°C to +60°C	≤10% @20°C	103.3 μA, over 15kΩ @20°C
Varta V393 SR48	77 mAh, 13kΩ down to 1.2V @20°C	0°C to +60°C	-	-

Despite similarities, each battery has traits that make it suitable for specific uses. For instance,

• - The LR754 is often favored in digital thermometers due to its reliable power output.
• - AG5 might be chosen for wristwatches owing to its compact size.
• - The 393 and SR754 are commonly employed in medical devices for their high stability.
• - S48 could be an ideal choice for various small electronics.
• - Orange Tab Batteries are noted for their balance of capacity and reliability, often used in hearing aids.

What application-specific features should one consider? Durability under various conditions, such as temperature fluctuations, is one crucial factor.