Top 18 Ag4 Batteries: Extended Life and Reliable Performance

Looking for a durable power source that can handle demanding applications? Our Ag4 battery roundup compares the best options on the market, highlighting their key features and performance.

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Reviews

Pk Cell AG4-10B Batteries

These reliable alkaline button cells power small devices like watches, calculators, and medical equipment. The 10-pack delivers consistent performance for years in common appliances. They’ve earned high praise from users who appreciate their longevity and value.

Cotchear AG4 Coin Cell Batteries

These 10-pack AG4 batteries deliver reliable performance for small electronic devices like watches, calculators, and laser pointers. With their 1.5V voltage and high energy density, these coin cells provide consistent power while boasting excellent temperature resistance and long shelf life. The compact 6.8mm diameter makes them ideal for space-constrained devices while their proven reliability makes them a popular choice across various applications.

Camelion AG4 Button Cell Battery

These button cell batteries pack a powerful punch for their small size, delivering reliable performance across various devices. The long-lasting power source handles temperature changes gracefully, making it a solid choice for backup power needs. With applications ranging from watches and calculators to cameras and laser pointers, these compact batteries prove their versatility time and again.

Tianqiu Lr626h AG4 Alkaline Button Cell Batteries (20 Pack)

High-quality TianQiu alkaline battery, specifically designed for small devices like watches and LED light sticks. Each blister-packed unit delivers 1.5V power and fits AG4, LR626H, and 377A battery slots. The reliable button cell has earned consistent 5-star ratings from satisfied customers who praise its affordability and performance.

Tianqiu AG4 Watch Batteries

These reliable AG4 batteries, each delivering 1.55V, have earned high praise from users who appreciate their long shelf life and affordability. The 10-pack includes alkaline cells with a diameter of 6.8mm and thickness of 2.6mm, featuring a simple design that fits perfectly into watches with small battery compartments. While some users report excellent performance lasting over a year, others note that the batteries maintain their strength well beyond their “best before” date, making them a standout value compared to store-bought alternatives.

Pack of 30 Button Cell Batteries

This convenient skin-card pack includes 30 button cell batteries in six common sizes, with six batteries of each type. The included sizes are AG1/364, AG3/392, AG4/377, AG5/393, AG12/386, and AG13/357.

Suncom AG4 Alkaline Button Cell Batteries

These dependable button cells power watches, calculators, and electronic toys with their stable 1.5V alkaline output. The retail-packaged 10-pack makes an efficient backup for your electronic accessories.

Camelion AG4 Button Cell Batteries

These small silver button cell batteries are perfect for keeping your calculator or watch running smoothly. They’ve got the standard 1.5V power that all these devices expect, and because they’re mercury-free alkaline batteries, you can use them with a clear conscience. The fact that they come in 10-packs means you’ll always have some spare, especially since a single battery can power a small device for quite a while.

Skoanbe 10Pack 377Lr626 Ag4 Watch Battery

These fresh SR626SW batteries offer reliable power with their full 1.5-volt charge and three-year shelf life. The 10-pack includes multiple compatible varieties suitable for watches, toys, and small electronics like calculators. With both AG4 and LR626 compatibility, these versatile batteries are a practical choice for anyone needing reliable watch power.

40-Pack Button Battery Combo

Think of this as your one-stop shop for those tiny-but-vital batteries that keep your devices ticking. With 40 alkaline powerhouses in seven different sizes, you’re covered from the tiniest watch battery to slightly larger ones for remotes and small gadgets. Whether you need them for your fitness tracker, calculator, or hearing aid, these reliable 1.5-volt power cells have got you sorted.

Maxell Ag4 Battery

These button cell batteries deliver reliable power to small electronic devices like watches and calculators. With 10 replaceable cells in each pack, they’re a practical choice for keeping your portable gadgets running smoothly. The high-quality alkaline cells work in place of several common battery types, so you’re covered for multiple device needs.

Tianqiu AG4 Battery

These button cell batteries provide a consistent 1.5V power output and come packaged in sets of 100 with 10 backup cards. The alkaline cells are designed for long-term storage and reliable performance in small electronics.

HyperPS AG4 Button Cell Battery

These versatile button cell batteries offer lasting performance for your electronic devices, from watches to remotes. Each 1.5V alkaline manganese cell provides dependable power for single-use applications. The included watch repair kit makes them a practical choice for both personal use and professional repair work.

Truglo AG4 Battery

When you’re relying on your TruGlo laser for target acquisition, the last thing you want is for it to fail mid-shot. These batteries deliver consistent power without letting you down - they’ve got a solid five-year shelf life too, so you’re not rushing out to replace them every six months.

20pc AG4 Battery

These fresh AG4 batteries, measuring a compact 6.75 x 2.5mm, provide dependable 1.5V power for watches, calculators, and key fobs. Coming in sealed blister packs of 10 cells, they’re a convenient replacement for G4, LR626, and LR66 devices, with reliable performance backed by a clear expiration date.

E-Circuit AG4/LR66 Alkaline Button Cell Batteries

These button cell batteries deliver dependable power to small electronics like watches and calculators. The four-pack format makes it easy to keep extras on hand for backup or replacement. With an 18-month shelf life, these alkaline cells provide reliable performance until their expiration date in 2024.

10 Pcs Ag13 LR44 Button Battery

These LR44 button batteries measure a mere 11.6mm in diameter and pack a hefty 180mAh capacity, making them ideal for small electronics like watches, calculators, and toys. The ten-pack comes in handy for stocking up on these essential little cells, though the packaging could be clearer about what you’re actually getting. Overall, they’re reliable power sources that last a long time in your devices.

Exell EB-L1154 Alkaline Battery

The Exell EB-L1154 battery proves its worth in various electronics, from watches to calculators, delivering dependable performance that users highly value. At 1.5V, these alkaline cells provide consistent power with impressive low-temperature durability. With 10 batteries per pack, you get reliable backups for your essential devices without the hassle of hunting down replacements.

Buyer’s Guide

Ag4 batteries, also known as silver oxide batteries, combine high energy density with reliable performance in small form factors. Understanding their key characteristics and applications is essential for selecting the right battery for your project.

Technical Specifications

Ag4 batteries typically offer voltage between 1.35V and 1.45V, depending on the manufacturer and specific design. Capacity ranges from 120mAh to 200mAh per cell, with higher capacities available through series or parallel connections. Look for batteries with a memory-free design and a consistent voltage discharge profile for optimal performance.

Performance Factors

The battery’s internal resistance affects both its efficiency and operating voltage under load. Lower resistance results in reduced voltage droop during high-current draw, making it suitable for devices with varying power requirements. Temperature tolerance is crucial, with most Ag4 batteries maintaining performance between -20°C and +60°C. Consider the self-discharge rate, typically around 1% per month, which impacts long-term storage requirements.

Application Considerations

Ag4 batteries excel in applications requiring high energy density and long-term reliability, such as medical devices, hearing aids, and watches. Their size makes them ideal for space-constrained electronics, while their performance under extreme temperatures extends their usefulness in demanding environments. Evaluate the specific operating conditions of your application to ensure compatibility.

Environmental Impact

Ag4 batteries contain silver, which affects their environmental classification. While they are not classified as hazardous waste, proper disposal is important due to the precious metal content. Consider the battery’s lifecycle impact, including material sourcing and end-of-life recycling options, when selecting a supplier.

FAQ

What is an Ag4 battery?

Ag4 batteries, also known as silver-zinc batteries, combine the properties of both primary and rechargeable batteries. They offer excellent voltage stability and long cycle life but require careful handling due to their sensitivity to temperature and humidity.

These batteries use a silver anode and a metallic zinc cathode in an alkaline electrolyte solution, typically potassium hydroxide. This chemistry provides a nominal voltage of 1.65V, making them suitable for precision instruments and medical devices.

What are the key benefits of Ag4 batteries?

Ag4 batteries deliver consistent performance across a wide temperature range, from -40° to 85°C. Their high energy density allows for compact design while providing reliable power, making them ideal for portable medical equipment and professional photography.

The batteries can undergo hundreds of charge-discharge cycles while maintaining their capacity, though they must be stored fully charged and in a dry environment to prevent permanent damage.

What types of devices can use Ag4 batteries?

Ag4 batteries are commonly used in medical equipment such as pacemakers, defibrillators, and blood glucose monitors. They are also found in industrial applications requiring precise timing and stable voltage, such as chronometers and data loggers.

Professional photographers sometimes use these batteries in high-end cameras due to their superior performance compared to alkaline batteries, though they are generally more expensive and less practical for consumer electronics.

How should Ag4 batteries be handled?

Ag4 batteries should be kept dry and stored in their fully charged state to prevent dendrite growth, which can compromise cell integrity. They should be protected from short circuits and stored at room temperature (15°-25°C) to maintain optimal performance.

Handling should be done with care to avoid physical damage. Never replace batteries with different chemistries, as this can cause thermal runaway and damage equipment.

What is the typical service life of an Ag4 battery?

With proper care, an Ag4 battery maintains 80% of its initial capacity after 500 charge-discharge cycles. The usable capacity decreases over time, and the battery should be discarded when its performance drops below 50%.

These batteries have a shelf life of 3-5 years when stored properly. The exact lifespan depends on storage conditions, usage frequency, and whether the battery is kept fully charged.

Are Ag4 batteries environmentally friendly?

Ag4 batteries contain toxic metals and require specialized recycling. The manufacturing process uses precious metals that are not easily recoverable, making them less environmentally friendly than alternative battery chemistries.

For single-use applications in equipment like pacemakers, the benefits of increased reliability and reduced replacement frequency outweigh environmental concerns. However, they should be recycled through proper channels to minimize environmental impact.

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