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Custom Lithium Ion Battery Pack

The lithium-ion battery packs assembled with cylindrical lithium battery cells are the most cost-effective battery pack type. This is because cylindrical li-ion cells are widespread. These include the well-known 18650, 21700, and 46800 cells. Another is lithium-ion battery packs assembled with big-capacity Al-shell prismatic lithium battery cells. They are popular in applying light electric vehicles and energy storage systems.

Legend is one of the best Lithium ion battery pack manufacturers in China. We have deep expertise in cylindrical and prismatic Li-ion battery cells. We also have rich experience in designing and manufacturing Li-ion battery packs.

Our cell engineer chose the brand battery cell supplier to offer the safest and most reliable battery pack solution. They choose cylindrical cells from Panasonic, Murata(Sony), Samsung, LG, and Molicel. They choose prismatic Al-shell cells mainly from CATL, BYD, CALB, and EVE.
Our BMS engineer will choose the reliable IC or MCU from TI, ST, SEIKO, or RICOH. We can design a trustworthy and intelligent PCM/BMS with Bluetooth, NTC, GPS, and communication protocol. These include CANBus, SMBus, RS485, I2t, UART, etc. Then we will manufacture it in our own SMT facility.
Our structural engineer can offer suitable structural solutions to fit your device’s battery room. These include wire connectors, FPC connectors, Pin connectors, PVC, plastic, or steel housing. We have our automatic and semi-automatic production line and MES system. With the help of these, we can provide stable quality and affordable custom Lithium ion battery packs for our customers worldwide.
Contact our engineer to design your Li-ion battery pack; you will surely get what you want.


Lithium ion battery pack- Prismatic cells inside

Electric sailboat battery

 
  • Cell: BYD NMC prismatic 100Ah
  • IC: RICOH ST
  • Communication protocol: N/A
  • Connector: Customized
  • Voltage: 51.2V
  • Capacity: 200Ah
  • Cycle life: 1500 cycles
  • Working temp.: -30°C-60°C
  • Application: electric scooter, electric golf cart
Learn more about our Lithium ion battery pack

Electric golf cart battery

 

  • Cell: CATL NMC prismatic 100Ah
  • IC: RICOH ST
  • Communication protocol: CANBus, RS485
  • Connector: Customized
  • Voltage: 51.2V
  • Capacity: 100Ah
  • Cycle life: 1500 cycles
  • Working temp.: -30°C-60°C
  • Application: electric golf cart, AGV
Learn more about our Lithium ion battery pack

Light EV battery

 

  • Cell: EVE prismatic 3.66V 30Ah
  • IC: RICOH
  • Communication protocol: N/A
  • Connector: Customized
  • Voltage: 60V
  • Capacity: 30Ah
  • Cycle life: 1500 cycles
  • Working temp.: -30°C-60°C
  • Application: AGV, electric boat, robot
Learn more about our Lithium ion battery pack

Lithium ion battery pack- Cylindrical cells inside

E-bike battery

 

  • Cell: Samsung INR21700-50G
  • IC: TI ST
  • Communication protocol: CanBus RS485
  • Connector: XT60 Anderson
  • Voltage: 25.2V
  • Capacity: 100Ah
  • Cycle life: 1000 cycles
  • Working temp.: -20°C-60°C
  • Application: e-bike, e-scooter, e-skateboard
Learn more about our Lithium ion battery pack

Detecting instrument battery

 

  • Cell: Molicel INR-21700-P42A
  • IC: TI
  • Communication protocol: SMBus
  • Connector: Gold-plated pin
  • Voltage: 7.4V
  • Capacity: 5000mAh
  • Cycle life: 800 cycles
  • Working temp.: -40°C-80°C
  • Application: detecting instrument
Learn more about our Lithium ion battery pack

Electric tricycle battery

 

  • Cell: Panasonic NCR18650GA
  • IC: SEIKO RICOH
  • Communication protocol: N/A
  • Connector: T plug
  • Voltage: 72V
  • Capacity: 70Ah
  • Cycle life: 500 cycles
  • Working temp.: -20°C-60°C
  • Application: electric tricycle
Learn more about our Lithium ion battery pack

get your custom lithium ion battery pack

As one of the best lithium ion battery pack manufacturers, we focus on producing high-quality Li-ion battery packs. If you are looking for custom Lithium-ion battery packs, please Send us an email.

Voltage and Capacity

Each Li-ion battery cell has a nominal voltage of only 3.7V; if you need a higher voltage Lithium-ion battery pack, assemble many Li-ion battery cells with a series connection. Each Li-ion battery cell has a smaller capacity. If you need a bigger capacity, assemble Li-ion battery cells with parallel connections.

BMS and Communication Protocol

If you need your own BMS, which you want to use to match your battery pack better, let us know your requirements. Our BMS and Electronics engineer team will design for you. To communicate with your device, you need specific communication protocols. No problem, we can do it. These include CANBus, SMBus, RS485, I2t, UART, etc.

Housing and Connectors

You need battery housing to protect the Li-ion battery and fit the battery room in your devices. Our structural engineer can design for you. Reliable connectors are essential to connect your devices with the Lithium ion battery pack. You can choose many connectors: JST, XT30/60/90, TRX, Bullet, EC/IC, Dean Plug, QS8, Anderson Plug, etc.

li-ion battery pack Applications

UAV FPV Lithium Ion Battery

  • Cell: Molicel INR-21700-P42A
  • IC: N/A
  • Communication protocol: N/A
  • Connector:XT30, XT60, XT90
  • Voltage: 4S2P, 6S2P, 6S3P
  • Capacity: 8.4Ah, 12.6Ah
  • Cycle life: 500 cycles
  • Working temp.: -40°C-80°C
  • Application: FPV drones, UAV, RC model, electric helicopter

E-foil Lithium Ion Battery

  • Cell: Samsung INR21700-50S
  • IC: Customized
  • Communication protocol: SMBus CANBus etc.
  • Connector: XT90 or others
  • Voltage: 50.4V
  • Capacity: 1..512KWh
  • Cycle life: 500 cycles
  • Working temp.: -20°C-80°C
  • Application: e-foil, electric surfboard, electric skateboard

Underwater Robot Lithium Ion Battery

  • Cell: Panasonic NCR18650GA
  • IC: ST
  • Communication protocol: SMBus
  • Connector: copper terminal, customized
  • Voltage: 24V
  • Capacity: 21Ah
  • Cycle life: 500 cycles
  • Working temp.: -20°C-60°C
  • Application: Underwater robot, swimming pool cleaning robot

How To Choose The Best lithium ion battery pack

Let us know the following parameters to choose the most suitable lithium-ion battery pack for your devices. Also, you can contact our engineering team for more professional suggestions.

1. What is your device's working voltage?

2. What is your device's working time? We need to calculate the battery capacity.

3. Is your device continuously working current and peak working current?

4. What are your device's working conditions? These include the temperature and relative humidity.

5. What is the battery room in your device? Length×Width×Thickness.

Why Choose Us- A Professional Lithium Ion Battery Pack Manufacturer

 

Safest Lithium Ion Battery Pack Manufacturer

Safety performance is always the most critical point we consider when designing lithium-ion battery packs. To ensure excellent safety performance, we built a strong engineering team. The 28 core engineers are from ATL and BYD. These include cell engineers, BMS and electronics engineers, mechanical engineers, sample and test engineers, manufacturing engineers, and quality engineers.

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MES System, Automatic Equipments, and SMT

We can track every battery using the MES system. Highly automatic equipment can help us to manufacture the battery more efficiently at an affordable cost. These include automatic laser welding/spot welding machines, automatic cell-matched machines, etc. We can get the BMS PCM promptly and cheaply with our SMT facility. This will save you a lot of time and cost.

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World-class Battery Cell Suppliers

Our engineering team chooses world-class battery cell suppliers when designing lithium-ion battery packs. These include Samsung, LG, Panasonic, EVE, Murata/Sony, Molicel, CATL, and BYD. This ensures excellent safety performance and reliability. After working with them for over ten years, our engineering team has a deep know-how for all the battery cells we use.

 

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SOP-Standard Operating Procedure, SIP-Standard Inspection Procedure

Our manufacturing engineering team has developed a highly standardized operation procedure. The manufacturing team complies strictly with SOP. This ensures the Li-ion battery packs we manufacture have good consistency and stability. Also, our quality engineering team will ensure the quality can be managed by complying strictly with SIP.

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FAQs About lithium ion battery pack

To build your own Lithium ion battery pack, you need to Send us email to tell our engieers team your detailed information as following:

  1. This Lithium ion battery pack will use for which products?
  2. The Voltage and Capacity?
  3. The continuous charge and discharge current?
  4. The size, Length*Width*Height? or send us the 3D drawing
  5. If you need the BMS and Specific Communication Protocol?

Talk more details with our engineer team, please Send us email

To charge your lithium ion battery pack safely, you must choose the suitable battery charger, match the charging voltage and current to avoid potential explosion.

Yes, our structure engineer team can design the suitable plastic or steel battery housing for your application, Send us email to talk more details

When testing the lithium ion battery pack voltage with Multimeter, first of all, you need to choose the DC voltage channel, then connect the red testing pen with the positive terminal or red cable, finally connect the black testing pen with the negative terminal or black cable.

T/T 30% deposit after order confirmed, the 70% balance payment before shipment.

Different MOQ for different Battery pack, Send us email to talk more details. But surely we can support you with small quantity samples trial order.

You can ask your own forwarder to ship these Lithium ion battery by air or by sea. We also can help you to ship these Lithium ion battery by air or by sea, we have our own very professional forwarders who only ship lithium ion batteries to all over the world, no other goods.

Yes, we can provide all of the certificates you need, such as MSDS, UN38.3, CB, IEC62133, PSE, UL, CE, etc.