Understanding the Common Types of Button Battery

2024/12/25 17:58:39

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Button battery is a widely used small battery for electronic devices, favored for its small size and efficient energy output. Common applications include watches, remote controls, medical devices, electronic toys, and more. Although they look similar, different types of button batteries have distinct chemical properties, technical characteristics, performance, and application scenarios. In this article, we will introduce several common button battery types in detail, including their technical principles, representative models, as well as the advantages and disadvantages of each battery, to help you choose the right button battery for your device.

Types of Battery | Different Types of Battery | Classification of Battery

Table of Contents

Common Types of Button Battery
Rechargeable & Non-rechargeable Button Battery
Sum up
Frequently Asked Questions

Common Types of Button Battery

Common types of button battery include Alkaline, Lithium, Silver Oxide, Zinc Air and Mercury Oxide button battery. Each common type of button batteries has different advantages and application scenarios. Understanding these differences can help us choose the most appropriate battery for our equipment needs, ensuring efficient and long-lasting operation.

1. Alkaline Button Battery

Alkaline Button Battery-(LR44)

Alkaline Button Battery is the most common type of button battery and is widely used in low-power devices. It employs zinc (Zn) and manganese dioxide (MnO₂) as the main components and uses an alkaline electrolyte (e.g., potassium hydroxide). Alkaline batteries are inexpensive and suitable for low-power electronic devices that require frequent battery replacement.

Technical features:

Chemical reaction: zinc reacts with manganese dioxide to release electricity.

Voltage output: typically 1.5V.

Energy density: lower compared to lithium and silver oxide batteries.

Common models and descriptions:

LR44: The most common alkaline button battery, widely used in toys, calculators, and watches.

A76: Equivalent to LR44, commonly used in electronic toys and watches.

AG13: Typically used in small electronic devices such as remote controls.

Pros and Cons:

Pros: low price, easy to buy, suitable for low-power devices.

Cons: Short lifespan, especially poor in high power consumption devices.

2. Lithium Button Battery

Lithium Button Battery-(CR2032)

Lithium Button Battery is a popular choice for devices requiring stable power for long periods. These batteries, such as the CR2032, offer higher energy density and longer service life, making them ideal for computer motherboard batteries, blood glucose meters, and car remote controls.

Technical Features:

Chemical reaction: Lithium metal reacts with an electrolyte to release electrical energy.

Voltage output: typically 3V, which is higher than the 1.5V of alkaline batteries.

Energy density: high, can provide stable power output for a long time.

Common models and Descriptions:

CR2032: One of the most popular button cell battery types, commonly found in high-end watches and electronic instruments.

CR2025: A thinner version of CR2032, often used in thermometers and miniature remote controls.

CR1632: Smaller than CR2032, suitable for calculators, USB keys, and other compact devices.

Pros and Cons:

Pros: high energy density, long life, stable voltage output, suitable for long-term use.

Cons: Higher price, especially in some small installations may seem too expensive.

3. Silver Oxide Button Battery

Silver Oxide Button Battery-(SR44)

Silver Oxide Button Battery is a high-performance button battery widely used in devices that require stable voltage for a long period of time, such as high-class watches and precision instruments. Compared with lithium batteries and alkaline batteries, silver oxide batteries have a more stable voltage output, which is especially suitable for applications that require precise voltage.

Technical Features:

Chemical reaction: Silver oxide reacts with zinc to release electrical energy with a stable voltage output.

Voltage output: typically 1.55V with high stability.

Energy density: Higher, suitable for high precision equipment.

Common models and Descriptions:

SR44: The most common Silver Oxide Button Battery, widely used in high-end watches, calculators, hearing devices and more.

SR626SW: It is suitable for some precision electronic devices and high-class watches, such as medical instruments and sensor devices.

SR927W: Used for some high-precision instruments, especially digital measuring equipment.

Pros and Cons:

Pros: stable voltage, constant voltage output over a long period of time, suitable for high-precision equipment.

Cons: Higher price, not very cost-effective for a low-power device.

4. Zinc-Air Button Battery

Zinc-Air Button Battery-(ZA10)

Zinc Air Button Battery uses oxygen from the air as the reactive component and therefore has a high energy density. Zinc-air batteries are mainly used in medical devices such as hearing aids and pacemakers, and are particularly suitable for those devices that require continuous use due to their ability to provide stable power for long periods of time.

Technical Features:

Chemical reaction: Zinc reacts with oxygen in the air to produce electricity.

Voltage Output: Typically 1.4V for devices that are powered for long periods of time.

Energy density: Higher, suitable for devices that require continuous power.

Common models and Descriptions:

ZA10: Commonly used in hearing aids and some portable electronic devices to provide power for a longer period of time.

Z10: Similar to ZA10 for devices such as hearing aids.

PR44: For hearing aids, long-lasting and stable power.

Pros and Cons:

Pros: Long service life, suitable for devices that are continuously powered, such as hearing aids.

Cons: Very sensitive to humidity, needs to be used in a dry environment or performance may be affected.

5. NiMH Button Battery

NiMH Button Battery-(LR521)

NiMH Button Battery is a rechargeable battery that uses NiMH alloy as the negative material and nickel hydroxide as the positive electrode. Due to its rechargeable nature, this battery performs well in devices that require long-term use and frequent battery replacements.NiMH Button Battery is suitable for low to medium power consumption devices that require stable and reliable power output.

Technical Features:

Chemical composition: nickel hydroxide (NiOOH) and nickel-metal hydride (NiMH).

Voltage Output: Typically 1.2V, slightly less than the 1.5V of alkaline batteries, but still sufficient for most low-power devices.

Rechargeability: Capable of being recharged approximately 300-500 times, reducing the frequency of battery replacement.

Environmentally friendly: Compared with disposable batteries, NiMH Button Battery is more environmentally friendly and reduces the generation of waste batteries.

Common models and Descriptions:

LR521: This is a very common Manganese Button Battery, commonly used in watches, calculators and some small electronic devices. It has good stability and is suitable for low power applications.

LR43: Suitable for electronic watches, instruments, children's toys and other devices, moderate capacity, stable voltage, commonly used in low-power devices.

LR626: This model of Manganese Button Battery is widely used in watches, laser pointers, mini flashlights and other small electronic products. Its compact size and stable voltage output make it a common choice.

Pros and Cons:

Pros: Rechargeable: Multiple use by charging, more economical than disposable batteries for long term use.

Cons: Longer charging time: the charging process is slower and not suitable for applications that require a quick battery change.

6. Secondary Lithium Button Battery

Secondary Lithium Button Battery-(LIR2032)

Rechargeable Lithium Button Battery is a type of button battery that can be recharged over and over again and is typically used in devices that require frequent battery replacements. These batteries are made with lithium chemistry and are equipped with a rechargeable feature that makes them suitable for long-term use.

Technical Features:

Chemical reaction: lithium reacts with an electrolyte to release electrical energy.

Voltage output: typically 3.7V, higher than the 3V of disposable lithium batteries.

Energy density: Higher, suitable for devices that require stable power for a long period of time.

Common models and Descriptions:

LIR2032: A rechargeable version of the CR2032, commonly used for devices that need to be used for long periods of time and recharged frequently.

CR2032 (rechargeable version): for small electronic devices such as remote controls, health monitoring devices, etc.

Pros and Cons:

Pros: rechargeable, environmentally friendly, low cost for long term use.

Cons: Higher initial purchase cost, requires charging equipment.

Rechargeable & Non-rechargeable Button Battery

When choosing a button battery, you should consider whether a rechargeable button battery or a non-rechargeable button battery suits your needs. Rechargeable button batteries, such as the LIR2032, are ideal for frequently used devices, while non-rechargeable options, such as CR2032 or LR44, are better for low-power devices or occasional use.

1. Rechargeable Button Battery

Rechargeable Button Battery is a type of button battery that can be recharged repeatedly for devices that require frequent battery use, especially if the device's battery depletes quickly. These batteries are typically made with lithium chemistry, which provides a stable power output and can be recharged multiple times via a charger, reducing the cost and negative environmental impact of long-term use.

Technical Features:

Chemistry: Usually Lithium (Lithium) or Nickel Metal Hydride (NiMH) technology.

Voltage output: Lithium batteries are usually 3V, while NiMH batteries are usually 1.2V.

Rechargeable: After the battery is depleted, it can be recharged multiple times through the charger, with charging cycles typically reaching 300-500.

Self-discharge rate: low, charged batteries are able to hold their charge for a longer period of time when not in use.

Common models and Descriptions:

LIR2450: Ideal for devices that require a smaller size and higher voltage, such as calculators, wireless sensors, and more.

LIR2032: This rechargeable Button Battery is a rechargeable version of the CR2032 model, which is widely used in small devices such as remote controls and electronic timers. It has a voltage of 3.7V and a relatively large capacity, making it suitable for devicLonger charging time: Compared to disposable batteries, rechargeable batteries take longer to charge.es used at high frequencies.

Pros:

Environmentally friendly: Ideal for reducing waste from button battery recycling, and suitable for devices with frequent use.

Long-term cost-effectiveness: Although the initial purchase price is high, it saves the cost of replacing batteries in the long run through repeated recharging and use.

Suitable for frequently used devices: If the device requires frequent battery replacement, rechargeable batteries are a better choice.

Cons:

Higher initial cost: Higher initial cost and requires additional charging equipment.

Longer charging time: Compared to disposable batteries, rechargeable batteries take longer to charge.

Limited Charging Cycles: Although rechargeable batteries can be recharged multiple times, the number of times each charge is limited, and the battery's performance will deteriorate after too many charges.

2. Non-rechargeable Button Battery

Non-rechargeable Button Battery is a single-use battery that needs to be discarded after use. These batteries are widely used in many devices, especially low-power devices that do not require frequent battery replacement. There are many types of non-rechargeable button batteries, the common ones are alkaline batteries, lithium batteries and silver oxide batteries.

Technical Features:

Chemistry: Common non-rechargeable button batteries include alkaline batteries, lithium batteries, silver oxide batteries and zinc air batteries.

Voltage Output: Depending on the type of battery, the voltage output is usually 1.5V (Alkaline), 3V (Lithium), 1.55V (Silver Oxide) etc.

Disposable: cannot be recharged after use and must be replaced with new batteries.

Higher energy density: For low-power devices, non-rechargeable button battery can provide longer usage time.

Common models and Descriptions:

CR2032: Widely used in watches, computer motherboards, car remote controls and other small devices to provide a stable 3V voltage.

LR44: A common alkaline button battery, commonly used in calculators, children's toys and small LED lights.

SR44: Silver oxide battery, widely used in high-end watches and precision instruments, stable voltage, suitable for long time use.

Pros:

No need to recharge: replace it directly after use, no need to wait for the charging process.

Lower initial cost: Ideal for small electronic devices like watches or remote controls.

Ldeal for low-power devices: Disposable batteries are an ideal choice for devices that are used occasionally or for long periods of time without the need to replace batteries.

Cons:

Not environmentally friendly: frequent replacement may increase long-term costs.

Higher long-term cost: Requires frequent battery replacement, especially for frequently used devices, which is costly in the long run.

Limited capacity: once the battery is depleted, it must be replaced immediately and cannot be used further.

Sum up

Each type of button battery offers unique features in terms of performance, longevity, and cost. By understanding the differences between lithium button batteries, alkaline button batteries, and other types like silver oxide button batteries, you can select the best option for your device. Additionally, consider whether a rechargeable button battery suits your needs to reduce environmental impact and enhance cost-efficiency.