The lithiumwatch battery is single-celled batteries that are cylindrical-shaped having a diameter of 5 to 25mm. The lithium watch battery resembles a button, thus, called a button cell or coin cell battery. These batteries are small in size but have a long life span. The lithium watch battery has a nominal voltage of 1.5 to 3 volts.
What is a watch battery?
The lithium watch battery is defined as the battery that provides the maximum amount of power to the watches by converting chemical energy to electrical energy. The lithium watch battery mainly consists of a metal casing having two electrodes. The electrodes have a composition and electrolyte as well. Moreover, to prevent the mixing of the electrodes, a separator is present. An important point to ponder is that watch batteries are mostly dry cells i.e., they contain chemicals in the form of paste with the amount of moisture needed for current flow through the batteries.
What are the features of a watch battery?
The watch batteries come in different components like silver oxide, alkaline and lithium batteries depending upon the need.
The lithium watch battery requires a voltage range of 1.5V to 3V to provide power and perform the functions.
The lithium watch battery is very small in size like a button which provides it possible to be used in small devices. The watch batteries are used in devices that require less current to operate.
The temperature affects watch batteries. It is noted that at high temperatures, mechanical watches can be out of order and vice versa.
The capacity of the battery cell is related to the height of the battery. Under the same battery type, the more the height, the greater will be the battery capacity.
What are the specifications of a watch battery?
Since battery development, many advances have been made to improve the types, sizes and voltages of watch batteries.
The lithium watch battery is available in different sizes in the market. The size of the watch batteries is determined by their two-digit number called the reference number. In the case of a lithium watch battery, the first digit refers to diameter and the next two shows thickness while in other watch batteries first two digit shows the range of diameter and the next two are the same as that of lithium batteries.
The alkaline watch battery (L1154) is 11.6×5.4 mm.
The lithium watch battery (CR2032) is 20×3.2 mm.
Voltage: The voltages of the lithium watch battery differ in nearly all types. The nominal voltage of lithium watch battery is 3V, and that of the alkaline or silver oxide battery is 1.5V.
Shelf life: Every battery has a specific shelf life- which refers to the ability of the batteries to survive and remain functional during the storage period. The shelf life of the watch batteries also varies. Like, the following are the shelf lives of some watch batteries;
Lithium batteries- 10 years
Alkaline batteries- 5 years
Silver oxide- 3 years.
The above shelf lives are the most ideal status. They need proper temperature, dry environment and regular check. Discharge cut off voltage: It refers to the amount of voltage a battery produces before expiring. Nearly all watch batteries have different cut off voltage, such as lithium batteries has 2V while silver oxide batteries has 1.20V.
What kind of batteries are used in a watch?
The watches have variable types of batteries that are used to provide power. With time, the materials of watch batteries have been innovated to increase the lifespan of the batteries. The three most common and important types of watch batteries are:
These batteries contain anode (lithium metal) and cathode (manganese dioxide) along with the electrolyte. The lithium watch battery is the most advanced form with an enhanced lifespan and a large amount of energy for a longer period. It is inexpensive compared to others. Moreover, it doesn’t have any harmful impact on the environment.
Alkaline watch batteries have a nominal voltage of 1.5V same as that of silver oxide batteries. These batteries are considered to be cheap and readily available. But its major flaw is that the battery voltages drops rapidly.
Silver oxide batteries
These batteries contain anode (zinc) and cathode (silver oxide) as well as electrolytes for the flow of ions. Such batteries are expensive because of the silver used. It has poor voltage stability. The silver oxide watch battery works at 1.5 volts.
Which watch battery is the best?
To be honest, lithium watch batteries are considered to be the most effective ones. It’s because the lithium battery has better performance than other types and is available in different sizes. These batteries are designed in such a way that they have a long lifespan and provide the maximum amount of energy to the watches. Moreover, the lithium used in watch batteries is not harmful to the environment.
These batteries have a nominal voltage of 3V while others have 1.5V. This shows that lithium watch batteries last almost 15-20% times longer than silver oxide watch batteries or alkaline watch batteries. Moreover, it has a shelf life of about 10 years if kept properly and carefully.
Does all watches have the same battery? Why?
Generally speaking, not all watches have the same battery. The watch batteries are available in different sizes. The watch batteries are used depending on the amount of energy/power needed to operate the type of the lithium watch battery. There are two different types of watch batteries:silver-oxide battery and lithium battery.
How do we charge the watch battery?
The lithium watch battery is a coin-shaped or button-shaped battery that is used to power small devices. According to its usage in small devices, very less power is required to operate a watch or other small devices. Therefore, most watch batteries are non-rechargeable because of the low consumption of power. However, some rechargeable watch batteries are also available those could be charged using their respective chargers or by a fully charged battery as well. In this way, you can read our lithium battery charger article to know more about the charger.
How long does the watch battery last? And does it need maintenance?
The average lifespan of a lithium watch battery is 3-5 years. While some last for more than 5 years like lithium watch battery.
The lifetime of a lithium watch battery depends on the quality of the material, the dimensions of the battery and the amount of energy required for functioning. The watch batteries surely need maintenance to keep them last longer.
How do we choose different kinds of watch batteries?
The watch batteries come in variable sizes depending upon the type of watch. But for the choice of the lithium watch battery, you need to find its reference number/code located on the outside of the batteries. This number is specific for every kind of battery.
CR/BR is the code for lithium batteries, L/LR/LG is for alkaline and SR/SG is for silver oxide batteries.
In this way, different kinds of watch batteries can be chosen depending on the need of the battery.
FAQ on a watch battery
Can I replace the watch battery by myself?
Precisely speaking, Yes, you can replace the lithium watch battery yourself. The battery of a watch can easily be replaced by anyone. The watches have a little screw at the back which could easily be removed with the help of “tweezers” without damaging the battery. Moreover, some watches consist of a back plate that could be detached easily to replace the lithium watch battery. As the batteries are very delicate, thus, one needs to be very gentle and careful while replacing them. However, in the case of luxury brand watches, it’s appropriate to acquire professional assistance.
How can we understand the voltage of the watch battery?
All batteries consist of a positive( cathode) and a negative(anode) terminal. Similarly, in watch batteries, the cathode and anode are separated from each other with the help of a battery separator. The nominal voltage range required for the proper functioning of watch batteries is 1.5 to 3 volts. The voltage of the lithium watch battery can be determined by using the multimeter. For this purpose,
Firstly, switch in the multimeter and adjust it to DC voltage.
Rotate the multimeter knob and set the voltage to the required voltage.
Now connect multimeter terminals with battery terminals ( positive terminal with red the robe and negative terminal with black probe).
Note the reading of the multimeter. In this way, the voltage of the lithium watch battery can be determined.
What are the differences between the 377 watch battery and the 376 watch battery?
Generally, 377 and 376 watch batteries are both the same type of silver oxide battery having 1.5 voltage. But after much research, it has been found that there lies a minor difference in their “drainage property”. 376 battery is a high-drain silver oxide battery requiring a maximum amount of power to work properly while a 377 battery is a low-drain silver oxide battery.
Both are used in combination featuring label 377/376 battery, for multi-drain purposes and could be replaced by SR626SW. Both batteries are the same but the number of them changes depending upon the items they are used in.
These batteries are used in small medical devices, toys, calculators etc.
Will watch batteries be improved and innovated in the future?
Many improvement have been made in the field of technology.
One is to make a mercury-free lithium watch battery. Mercury is a toxic element that could have adverse effects on human health as well environment.
Secondly, an innovation of using lithium-ion batteries in watches has been increased and modified to increase the lifespan of the lithium watch battery.
Photovoltaic cells have been introduced by Samsung. Here is an article of top 10 photovoltaic cell manufacturers in China to help you get more information. In this case, a watch strap containing two such cells is used that captures the maximum amount of energy. By 2030, such solar watch batteries will become much more useful.
Does lithium be used in watch batteries? Why?
There exist three best chemical compositions for the proper functioning of watch batteries-of which lithium is the one. Lithium is used in the advanced type of watches to provide high voltages for performing better functions. The lithium batteries are designed in a way that there are no chances of leakage because of the state of materials used. Lithium could be a good option to be used in a lithium watch battery.
What are the differences between lithium ion batteries and watch batteries?
The lithium battery is cylindrical/prismatic/pouch shaped.
The watch battery looks like a coin and is called a coin battery.
The lithium battery has a nominal voltage of 3.2-3.7V
The watch battery has a nominal voltage of 1.5 to 3V.
Electrical devices, golf cart/ electrical devices, laptops, and scooters.
Toys, watches, hearing aid devices, calculators.
How do lithium batteries and watch battery work?
The lithium batteries are composed of two electrodes-an anode and a cathode as well as the electrolyte. The purpose of these electrodes is to store the lithium-ions that are used to power the watch. During charging, the lithium ions travel from the cathode and anode which creates a potential difference and the battery gets charged.
While during discharging, the lithium ions travel from the anode to the cathode using the energy. In this way, the battery can be charged and discharged again and again through the movement of lithium ions. This process refers to rechargeable lithium battery.
Like all the other batteries, the lithium watch battery is also composed of an anode (negative terminal) and a cathode (positive terminal). The electrodes are separated by a separator to prevent electrodes from mixing. In addition, the lithium watch battery also consists of an insulator- that keeps the electrodes in their place.
The lithium watch battery works by the conversion of electrical energy to chemical energy by the flow of the materials from the electrodes that produce the potential difference.
Can we replace a watch battery with a lithium battery?
The chemistry of a battery used in a watch is very crucial, as, it decides the longevity and the functioning of the battery. These batteries are available in every size depending on the type of the watch. Among all, lithium batteries have enhanced functions and lifespan of the watch as well. Here let me introduce an outstanding odm best lithium battery manufacturer – TYCORUN Energy. And if you have interest, you can click on the button below to know more about the company.
Besides, the replacement of the lithium watch battery with the lithium battery needs to be checked professionally to ensure the compatibility of the watch with the lithium battery. Hence, consultation of professional service needs to be done to achieve effective results.