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Comprehensive-knowledge-of-3.7v-li-ion-battery

Comprehensive knowledge of 3.7v li ion battery

A 3.7 v li ion battery is a 3.7v ternary lithium battery, applied in a variety of small electronic devices. It can go up to 4.2 volts when fully charged because of its high energy density. The primary charge carrier of this rechargeable battery is lithium.

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How to define a 3.7v li ion battery

The storage capacity of these batteries varies considerably based on different factors, such as applications and sizes. Usually, its storage capacity ranges from several hundred mAh to a few thousand mAh, enough to carry out a wide range of applications.

What are the features of a 3.7v li ion battery

Let us discuss the main features of a 3.7v li ion battery.

● They do not contain harmful chemicals; hence they are eco-friendly.
● Have long cycle life
● Lightweight and portable
● High power density
● High voltage per cell
● Quick charging

What is a 3.7v li ion battery used for

The 3.7v li ion battery offers numerous applications. Some of them are discussed below.

1. This lightweight product is utilized explicitly in numerous electronic devices such as cell phones, laptops, power banks, etc.

2. It is also used in e-bike, motorcycle, and other electric vehicles.

3. 3.7v li ion battery is used in several medical devices, such as insulin pumps, heart rate monitors, etc.

4. Due to its long cycle time, different backup power systems use this versatile battery.

5. Its high power density makes it suitable for renewable energy systems, e.g., wind turbines, solar panels, and other related systems.

6. A wide range of aerospace products, like spacecraft, use this battery due to its lighter weight.

What-are-the-packaging-formats-of-3.7v-li-ion-battery

What are the packaging formats of 3.7v li ion battery

Depending on their cell types, three main formats of a 3.7v li ion battery exist. These formats are as follows.

1. Cylindrical Format
2. Prismatic Format
3. Pouch Format

Let us discuss these formats along with their advantages.

Cylindrical format

As the name suggests, the cylindrical format is named due to its cylindrical shape of cells. It is the typical format of a 3.7v li ion battery. It is found in different ranges of capacities as well as sizes. They are discovered symmetrically and are encased in metallic cans. Its most common sizes are:

● 21700 – Length 70mm, Diameter 21mm
● 26650 – Length 65mm, Diameter 26mm
● 18650 – Length 65mm, Diameter 18mm.

Advantages:
● Easy manufacturing
● Commonly available format
● Found in standard sizes
● Long cycle life
● Excellent mechanical stability
● Cost-effective&High power

Prismatic format

The prismatic format has rectangular-shaped cells and is encased in a rigid casing. In this format, different units are stacked in a battery module rectangularly. This type of format is mainly found in myriad sizes.

Advantages:
● High discharge rate
● Simple construction
● High power density
● Excellent thermal stability

Pouch format

The Pouch format of the 3.7v li ion battery has flat shape cells. It is not encased in a rigid metallic case like other formats. The reason this type of format is lightweight. You can efficiently make it in various shapes and sizes according to your requirement.

Advantages:
● High power density
● Customizable
● Lightweight and flexible
● Thin profile
● Better mechanical stability

3.7v-li-ion-battery-capacity-range

3.7v li ion battery capacity range

The storage capacity of the 3.7v li ion battery varies depending on different factors such as sizes, manufacturer, model type, etc. The batteries have various storage capacities ranging from several hundred to several thousand mAh. The capacities of 3.7v li ion batteries are as follow.

  Storage Capacity of Cylindrical 3.7v li ion battery

      Capacity of 18650

          2,300 mAh to 3,600 mAh

      Capacity of 21700

          4,000 mAh to 5,000 mAh
      Capacity of 32700

               6000 mAh-7200 mAh

 Storage Capacity of Prismatic 3.7v Li-ion Battery

Storage capacity for portable devices

           400mAh to 2,000 mAh

Storage capacity for electric vehicle

             50ah – 300ah

Storage Capacity of Pouch 3.7v Li-ion Battery

Storage capacity

           50 mAh to 600mAh

How long does a 3.7v li ion battery last

The total lifetime of the 3.7v li ion battery depends on many factors. These factors involve charging habits, battery usage, total storage capacity, discharge rate, temperature, etc. Generally, 2-3 years of aging needs to be replaced. The 3.7 vli-ion battery charge-discharge cycle is about 1000 times. The use time is determined according to the battery capacity.

As you use the battery, the natural components of the battery start degrading slowly. After complete degradation, the battery stops working. After completely degrading the battery’s components, you may need to replace the battery to charge your devices. Therefore, to prevent the battery from degrading earlier, you must handle it carefully and maintain it properly.

3.7v-li-ion-battery-vs-3.2v-Li-ion-Battery

3.7v li ion battery vs 3.2v li-ion battery – which is better for a motorcycle

Typically a motorcycle is not charged with a 3.7v or 3.2v li-ion battery. A 48V to 72V battery with a 3. v li-ion battery or 3.2v li-ion battery is needed to charge the motorcycle. In case a comparison is made, a 3.7v li ion battery as nmc battery might be better for charging a motorcycle. The reason behind this difference is its high energy density and lightweight.

The 3.2v li-ion battery as LFP battery possesses less energy storage capacity than the 3.7v li ion battery. But in some cases, a 3.2v battery proves ideal for the electrical system of a motorcycle because of its high discharge rate and low internal resistance. In short, you must choose a specific type of battery according to a motorcycle’s electrical system and other requirements.

What is the voltage range of a 3.7v li ion battery

The nominal voltage of ternary lithium battery is 3.7V, the charging up voltage is 4.2V, and the discharge up voltage is 3.0V. Its discharge platform is 4.2—3.5V and the end voltage end is 3.5—3.0V. It is also referred to as charge cut-off voltage or maximum safe voltage. As you charge the battery, its voltage is enhanced while it reduces due to discharging.

The battery shows full voltage when it is ultimately charged. You must carefully charge the battery to its full voltage range for optimal performance. Avoid using a charger that is not compatible and designed for a 3.7v li ion battery. It can cause damage to your battery. Use a suitable charge to ensure a long lifespan of the battery.

Can I charge a 3.7v battery with a 12v charger

Charging a 3.7v li ion battery may cost a lot because of its hazardous effects. This 12V charger has a much higher voltage than a 3.7V battery. Charging with a higher voltage charger can permanently damage your battery and may result in an explosion. Use a charger that is specifically manufactured for your battery. It is compulsory to ensure the long run time of the battery.

How many 3.7v li-ion batteries are for motorcycle battery pack

The number of batteries connected depends on the specific requirements of the motorcycle. It depends on the capacity of each battery connected. Take the 72v 60ah swappable battery of TYCORUN ENERGY, for example, using a 3.7v 60ah large capacity square cell, so it is composed of 12 cells in series. If you have other specifications of motorcycle batteries, please do not assemble them by yourself, you can contact the lithium battery manufacturer for customization.

TYCORUN-72v-60ah-lithium-battery

For more battery cell related articles, please refer to prismatic cell, NMC cell voltage, hydrogen fuel cells.

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