Button batteries come in different sizes, and specifications and are used in different applications. Some of these batteries are perfectly suited for specific applications and not others. One such battery that should draw your full attention is the SR44 battery.
Are you planning to buy an SR44 battery? Whether it is for your specific application or for release, we are going to dig into some vital information that you should know about them.
What is the SR44 Battery?
SR44 is a button-shaped primary battery that uses silver oxide as its cathode. It is also known as SR44W or SR44SW depending upon its shape. The battery was introduced in the year 1955 by the National Carbon Company and it was the first silver oxide battery to be introduced.
The batteries are quite popular in the market because of their ability to provide high current.
They are used in a wide variety of applications including TV remotes, wristwatches, calculators, and hearing aids.
The batteries are also used in medical equipment such as ECG machines and certain heart monitors.
How does SR44 Battery work?
The SR44 battery has a nominal voltage of 1.55V. It is made up of silver oxide which is a chemical compound that is made up of silver, oxygen, and two atoms of oxygen. The battery gets its name from the materials that it is made up of.
One interesting thing to note here is that these batteries are more expensive than alkaline batteries even though they have similar power capacity as them.
These batteries are designed to have a longer shelf life when compared to alkaline batteries even though they have shorter discharge cycles when compared to them.
The SR44 battery has a slightly higher voltage when compared to other button cells like LR44 or AG13 but it is not as powerful as the LR44 battery. Its voltage can be compared to a 1.5V alkaline battery.
What is the chemical composition of the SR44 battery?
The chemical composition of the SR44 battery is made up of silver oxide which is a chemical compound made up of silver, oxygen, and two atoms of oxygen.
The silver oxide has an atomic number of 47.
The battery also consists of other elements like carbon, oxygen, hydrogen, and nitrogen.
The battery also contains small amounts of other elements such as sodium, fluorine, and lithium.
This makes it a non-toxic battery that is safe to be used in most applications, including the most sensitive ones such as those in the field of medicine.
What are the physical dimensions of the SR44 battery?
The physical dimensions of the SR44 battery are 1.3 mm in diameter, and 6.3 mm in height.
The weight of the battery is 0.33 grams and it has a thickness of 2 mm.
This makes it very small and easy to integrate into most electronic devices that use button cells for power supply, as well as medical devices that need a tiny power source that can be easily integrated into a wearable device or other miniature devices such as those used for hearing aids or heart rate monitors
The size of this battery makes it possible to have a longer shelf life, which makes it ideal for applications where long-term storage is needed.
This is because the size allows for less contact with air and thus reduces the amount of oxidation that occurs during storage compared to larger batteries like AAA which have a shorter shelf life when compared to this one.
What is the operating temperature of the SR44 battery?
The operating temperature of the battery is between -4 °C to 45 °C.
According to most manufacturers, they can be stored for up to 25 years at room temperature and their shelf life is 5 years at 25 °C.
This makes it ideal for most applications since they can be stored long-term without losing performance and then used when needed.
This is one of the reasons why this battery has been adopted by many industries that require batteries that have a longer shelf life.
The operating temperature of this battery makes it ideal for most applications where temperatures are not extreme and its high storage capacity makes it capable of providing a continuous power supply even when not used for a long period of time.
What are the electrical specifications of the SR44?
The operating voltage of the battery is from 1.2 volts to 4.0 volts.
This makes it perfect for most applications where a 1.5-volt battery is needed and a 4-volt battery can be used for higher demanding applications that require more power.
Like most other batteries, it has a capacity of 165mAh.
This means the battery can provide a continuous power supply for up to 13 hours even when not used.
It also has a low internal resistance of 1.5mΩ which means it is capable of providing up to 500 charge cycles.
Most batteries have an internal resistance between 2mΩ and 3mΩ which usually results in a longer life span and lower cost.
However, some batteries have a higher internal resistance than others, which has an adverse effect on the performance of the battery.
The low internal resistance of this battery makes it ideal for applications where a low internal resistance is required.
SR44 Terminal type
The SR44 uses a flat top terminal. This is different from the common cylindrical top terminal used in other batteries.
The benefits of the flat top over the cylindrical type are:
The flat-top allows for a more secure connection between the battery and the device it powers.
This helps prevent accidental disconnection of the battery and possible damage to both the device and the battery.
This is important since batteries are often accidentally discharged while they are not in use, which may lead to damage to both the battery and its connected devices.
Another advantage of using a flat terminal is that it allows for easier installation of connectors on devices like flashlights or toys.
This is because there are fewer restrictions placed on how far away from each other they can be inserted, which means that they can be installed inside toy cars or boats without them being damaged.
Benefits Features and SR44 batteries
Let’s now look at some of the outstanding benefits and even features that come with using an SR44 battery;
-High capacity: From the specs, it is clear that SR44 batteries tend to have high capacity than most of its alternatives. With this capacity, it means that you will depend on the battery for quite a long before it runs out of power.
-Wide operating temperature range: You can use this battery at any temperature ranging from -20 to 60 degrees Celcius. This means that you need not worry about the weather while using this. You will also worry less about the impact of overheating on your battery.
-Long lifespan: The lifespan of SR44 batteries is quite long. This is due to the fact that they are made with high-quality materials and have been engineered very well.
-No memory effect: Another amazing feature is that you need not worry about the memory effect of your device when you are using a different battery in it. This is because most of the components used in these batteries are non-reactive, which means that there is no chance of them reacting negatively to your device.
-Low self-discharge rate: Another great feature about these batteries is that they have a low self-discharge rate, meaning that they do not have an experience any kind of loss or damage from the battery itself.
-Resistant to shock and vibration: SR44 batteries are resistant to shock and vibration. This is because they have been engineered with high-quality materials that do not break easily.
-Non-rechargeable: The first thing that you should know about the SR44 batteries is they cannot be recharged. Once its capacity is depleted, that will be it! You will not be able to replenish through a charging process. So, if you were looking for a rechargeable battery, you better get other alternatives.
-Low internal resistance: SR44 is characterized by a significantly low resistance, a feature that contributes to the stable functional life of the battery.
-They are lightweight: As we said before, SR44 batteries are lightweight which makes them ideal for powering devices that need a small amount of power. This means that you will not have to worry about carrying heavy and bulky batteries in your pockets.
What are the SR44 battery alternatives?
One of the most common alternatives to the SR44 is the LR44 battery. This is another high-performance button-like battery that is used in similar applications as SR44.
LR also has a nominal voltage of 1.5V though it has a relatively high voltage drop.
Where to buy an SR44 battery?
For performance and reliability, you should buy SR44 batteries from reliable manufacturers and suppliers in China. Since such manufacturers and suppliers come in large numbers, choosing one may be a challenge. This is why it is advisable to use the services of a sourcing agent.
ICRFQ is a reputable sourcing agent for electronics in China. We can connect you to the right manufacturers and suppliers of SR44 batteries in China.
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