18650 Battery Pack Manufacturer
18650 Battery Pack Manufacturer

What is 18650 Battery Pack?

18650 battery pack are made up of 18650 cells connected in series and parallel with each other to increase the voltage or current. It has a wide range of applications in the field of power tools, electric bicycles, or other equipment, and is usually made of Lifepo4, NMC, or LTO, allowing the battery pack to efficiently and safely output voltage and current. Meanwhile, Keheng provides various commitments and customized solutions for battery packs.
Contact us for 18650 battery pack solutions that will give you peace of mind!

18650 Battery Pack

18650 Battery Pack Advantages
  • High capacity: 18650 Li-ion battery pack capacity can be customized according to requirements.
  • Long life: The life span under complete discharge can be around 500 times.
  • High safety: Not easy to explode, leakage, and other dangers
  • No memory effect: Can be recharged without complete discharge.
  • Supports series and parallel connection: Batteries can be connected in series and parallel with each other.
  • Wide range of applications: Widely used in golf carts, marine, electric bicycles, and power tools.
18650 Battery Pack Advantages
Keheng takes care of your worries
Keheng takes care of your worries

Keheng is a 18650 battery pack manufacturer for industrial and commercial, energy storage, power, consumer electronics, and other applications, offering battery pack services with customizable options to free you from the hassles associated with lead-acid batteries. Meanwhile, you can choose to customize different Group sizes such as 21700/ 26650/ 32650 to meet your specific needs. Our strict production process and quality control team ensure that the batteries our customers get in their hands are of high quality. Enjoy a one-stop solution with keheng.

Optional customization options for 18650 battery packs
  1. Battery case customization: you can choose iron, plastic, or PVC film.
  2. Cell customization: keheng provides customers with LFP, LTO, and NMC different cell materials to choose from.
  3. Voltage customization: you can customize different voltage 6V, 12V, 24V, 36V, 48V, high voltage, and so on.
  4. Capacity customization: 10Ah, 20Ah, 50Ah, 100Ah, 200Ah and other different capacities.
  5. Shape customization: triangle, diamond, and special shapes can be designed.
Optional customization options for 18650 battery packs
18650 lithium battery pack assembly need to prepare materials?
  1. to determine the need to focus on the 18650 lithium battery pack voltage is how many volts, and capacity is how many ah.
  2. prepare the appropriate number of 18650 lithium battery cells.
  3. select the appropriate lithium battery protection plate.
  4. welding equipment, cell mounting brackets, wire, battery shell, etc., and some other auxiliary materials.
Here are a few 18650 lithium battery pack assembly to understand the reasons for several problems?
  1. the use of a battery protection plate.
  2. Cell voltage, capacity, and internal resistance error the smaller the better.
  3. 18650 lithium battery pack assembly requires the use of the same type of properties as the.
18650 lithium battery pack assembly needs to understand several characteristics:
  • 18650 lithium battery pack is several 18650 cells through the series and parallel welding assembly, the battery pack needs to be protected by the BMS.
  • The voltage error between each cell of the 18650 lithium battery pack should be within 10 millivolts, and the difference in capacity and internal resistance should be as small as possible.
  • The voltage of each cell of the 18650 lithium battery pack has two conventional voltages, NMC battery voltage 3.7V, and lithium iron phosphate battery 3.2 V. At the same time, the battery cells can not be mixed, and the old and new battery cells can not be mixed, it is best to use the same batch of battery cells.
What is the maximum capacity of 18650 lithium battery pack?

18650 due to size limitations, the maximum effective capacity of 2550 is the limit data.

What are the advantages and disadvantages of 18650 battery?

Pros: Mature technology and supporting facilities, 18650 lithium-ion battery packs have a very long battery life, high safety performance, no memory effect, and low internal resistance, 18650 lithium-ion battery packs can be connected in parallel or series.

Cons: Smaller capacity

Can different capacity 18650 lithium battery packs be connected in parallel?

Batteries, whether connected in parallel or series, need to try to ensure that the voltage, capacity, open-circuit voltage, and internal group are almost guaranteed to be the same, if you do series or parallel need to increase the protection plate, and then let the battery has a charge/discharge equalization function.
The following four batteries are in parallelCan different capacity 18650 lithium battery packs be connected in parallel and have the same voltage and the same internal resistance, but one has a low capacity:


When charging the battery pack.

1)If the batteries are connected in parallel without a protection plate, the charger must not be able to use a 5V charger, and the voltage must be limited to 4.2V, otherwise the lithium battery will be overcharged and there is a danger of explosion.
2) After the parallel connection with the protection plate, limit the charging voltage to 4.2V, then there will be a situation, the low capacity of the battery first full, long-term overcharge, and overdischarge, will lead to battery safety hazards, and even explode and catch fire!

18650 lithium battery pack customization process
  1. Understanding the product demand only needs to supply lithium battery size, electrical performance, output, and functional requirements.
  2. If you don’t know the product requirements, you need to provide us with the function requirements, working time, product power, appearance, and shape.
  3. Engineers confirm the functional requirements of the product and will combine them with the actual material situation to give you a specific delivery date.
  4. After confirming the delivery date of the customized battery, the manufacturer will produce it on schedule.
  5. Customized lithium-ion battery pack quality agreement, warranty time, after-sales service time, etc.
How to store the 18650 battery pack?

Put it in a dry room temperature place to save, and ensure the power in 30-50%, and ensure that the battery in about 3 months to take out and charge once.

What are the applications and types of 18650 point phrases?

1、Energy storage category: Mainly used in base station power supply, clean energy storage, grid power storage, home optical storage systems, etc.

2、Power class: Mainly refers to electric transportation, electric bicycles, new energy vehicles, power tools, electric drills, hand drills, new energy vehicles, electric bicycles, and so on.

3、Digital: Electric toys, rechargeable treasure, small fans, sweeping robots, robots, drones, cell phones, tablet PCs, laptops, electric toys, MP3/MP4, headphones, rechargeable treasure, aeromodels, mobile power supply, and so on.

1、Categorized by the practical performance of the battery: power type battery and energy type battery.
2、According to the electrolyte material: Lithium-ion batteries are divided into liquid lithium-ion batteries (LIB) and polymer lithium-ion batteries (PLB).
3、Categorized by product appearance: Divided into cylindrical, soft pack, square
4、Categorized by pole material: Positive electrode materials: lithium iron phosphate (LFP), lithium cobaltate (LCO), lithium manganate (LMO), (binary batteries: lithium nickel manganate/lithium nickel cobaltate), (ternary: lithium nickel cobalt manganese (NCM), lithium nickel cobalt aluminate (NCA)). Anode materials: lithium titanate battery (LTO), graphene battery, nano carbon fiber battery.

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