3.65V 50.5Ah D21 Pouch NCM Cell

D21 soft pack ternary battery 3.65V 50.5Ah power cell passenger car commercial vehicle

50.5
Nominal Capacity(mAh)

3.65
Nominal voltage(V)

1600
Nominal Cycles(times)

740g
MaxWeight (g)

249
Energy Density(Wh/kg)

12x100x301
Size(mm)

Application

Low-speed vehicle, Household savings, Passenger car, Tour bus, Start-up power

Product Certification

MOQ: 1 PCS

Fast Quotation

Low self-discharge rate

High Security

Low internal resistance

High capacity

High Discharge Rate

Long Cycle Life

High Energy Density

Fast charging

Energy Storage Battery Catalog

Model

Capacity
(Ah)

Nominal
Voltage
(V)

Cycle  Life
(times)25℃

Internal
resistance
(1KHz)

Weight
  (g)

Length x Thickness
x Height
(mm)

Energy
Density
(Wh/kg)

D21

50.5 

3.65 

1600(1C/1C)

≤0.7mΩ

740±20

11.6×99.7×301.5

249 

E29

61 

3.65 

3000(0.33C/0.33C)

≤1.2mΩ

858±20

13,6×99.7×301.5

259 

E41

65 

3.65 

3000(0.33C/0.33C)

≤1.2mΩ

903±20

14.3×99.7×301.5

262 

E42

45 

3.65 

2000(0.5C/1C)

≤0.7mΩ

661±20

10.7×99.7×301.5

248 

Product Specification

Model Name

D21

Nominal Voltage

3.65V

Nominal Capacity

50.5Ah

Weight(g)

740

Limit Charge Voltage

4.2V

Discharge Cutoff Voltage

2.5V(＞0℃)

Standard charge/Discharge current

16.8A(1/3C)

Nominal Cycles(times)

1600

Product Details

D21 50.5Ah 3.65V
High-capacity, Long cycle life

Cycle up to 1600 times, Capacity Energy Retention Rate≥70
At(25°C 0.5C/0.5C)

Product Certification
Meet UN38.3, MSDS and other approvals

High energy density

NCM material system with high energy density and high power storage capacity

Low internal resistance

Low self-discharge and good fast charging performance

High safety performance

Reliable explosion-proof valve,short-circuit-proof structural design and high-security isolation membrane coating process,high safety performance


Intelligent manufacturing

Continuously promote informationization and digitalization to build a”lighthouse factory”

Passenger Caes

Entered the supply chain of international first-class passenger car enterprises and reached strategic cooperation with domestic new car-making forces

Product Appliaction

Faithbat provides a variety of lithium batteries and accessories, which can be used in RVs, small boats, electric bicycles and industrial equipment. When choosing the right battery, you must consider compatibility and safety. Make sure the battery is compatible with your device and has built-in safety features, such as overcharge protection, over-discharge protection and thermal management system. The second, Determine battery parameters, including voltage, capacity, size and weight, charge-discharge rate, and cycle life. To ensure you get the most cost-effective battery under limited space conditions, you can consult our battery experts. You only need to provide the battery size and output power, and we can provide you with specific product models or customized solutions.

Quick consultation.

Warranty Policy

We stand behind our Grade A claims and know you will be more than satisfied with the product you receive. We offer a 30 Day no hassle, MONEYBACK GUARANTEE if you are unsatisfied with your cells for ANY reason. You will be responsible for the return shipping fees unless product is determined to be faulty.

We offer a 1 year warranty on all battery cell. We offer technical support and troubleshooting throughout the duration of the warranty. We can offer greater than a 1 year warranty on the cells but you will need to contact us with your design specs for approval. Large orders of 1,000pcs+ minimum.

Warranties only apply to original owner and are non-transferrable. We will verify your purchase prior to processing any warranty claims or returns.

If it is determined that our product is obviously faulty, we will ship new product to you immediately. We will cover the cost of return shipping.  This does not apply to items that have been damaged due to gross negligence, normal wear & tear, improper installation or abuse.

Our warranty does not cover items that have been damaged due to gross negligence, improper installation or abuse. If you are unsure, you should contact us before installing the product.

FAQ

The 37101 LiFePO4 battery cell is suitable for energy storage systems, electric vehicles (such as electric forklifts, electric trucks), high-power UPS equipment, and solar energy storage systems. Its large capacity and long life characteristics make it an ideal choice for scenarios with high energy density requirements.

  • Nominal voltage: 3.2V
  • Capacity: 60Ah
  • Size: standard size, suitable for large-capacity assembly
  • Discharge rate: supports 3C continuous discharge, instantaneous discharge can reach 5C
  • Cycle life: more than 3000 charge and discharge cycles
  • Operating temperature range: -20°C to 60°C

Depending on the application requirements, the battery pack can be assembled in the following ways:

  • Series connection: Increase the total voltage, for example, 16 strings can form a 51.2V system for energy storage applications
  • Parallel connection: Increase the total capacity, for example, 4 and form a 240Ah capacity, suitable for long-term backup power needs

Assembly requires high-performance BMS and precise connection process to ensure safety and reliability.

Yes, the 37101 battery supports 3C continuous discharge and 5C instantaneous discharge, which can meet the start-up and operation requirements of high-power equipment such as electric trucks.

Yes, the BMS is a necessary component for battery pack assembly. It can monitor the status of each battery cell in real time (such as voltage, temperature and current), provide safety protection (such as overcharge, over discharge, over temperature protection), and extend the service life of the battery pack.

Yes, this battery cell is optimized to support a wide operating temperature range of -20°C to 60°C. For extremely cold environments as low as -40°C, we can provide customized heating system solutions.

  • UN38.3: Meets international transportation safety requirements
  • CE: Meets EU market requirements
  • UL: Meets international safety standards
  • IEC62619: Battery safety certification suitable for energy storage and industrial applications

Yes, we provide comprehensive customization services, including:

  • Voltage and capacity adjustment (such as 51.2V 300Ah battery pack)
  • Waterproof and dustproof housing design, suitable for use in harsh environments
  • Intelligent BMS system integration, providing real-time data monitoring and remote management functions
  • Check the BMS status regularly to ensure the balance of the battery cells
  • Avoid deep discharge, it is recommended to keep the power range of 50%-60%
  • When stored for a long time, recharge the battery once every three months
  • The storage environment should be kept dry and the temperature range should be between -10°C and 30°C.

Under normal use conditions, this battery can provide more than 3,000 charge and discharge cycles, and the battery pack can last for more than 5 years.

Yes. The maximum charge rate of this battery is 1C (60A), which can complete charging in a short time, significantly improving efficiency.

This battery supports deep discharge and efficient charging characteristics, and can efficiently store and release energy between day and night, making it an ideal choice for home and commercial energy storage systems.

This battery maintains stable performance in high temperature environment, and its safety of use is further optimized through heat dissipation design, which is suitable for industrial and outdoor equipment.

Usually, the minimum order quantity is 50 pieces. If a customized battery pack is required, it can be adjusted according to the requirements.

  • Yes, we provide comprehensive technical support, including:
  • Battery pack design and configuration consultation
  • BMS system selection and commissioning support
  • Technical guidance and after-sales support during assembly

During the assembly process, high-quality connection technology, suitable BMS, and sufficient safety tests (such as overcharge, over-discharge, and short-circuit tests) must be used to ensure the safety and reliability of the final product.

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