3 Bank Lithium Battery Charger: Technical Principles, Applications, and Future Prospects

Introduction

With the rapid advancement of technology and the proliferation of portable electronic devices, lithium-ion batteries (LIBs) have emerged as the preferred battery type for numerous consumer electronics and electric vehicles due to their high energy density, long lifespan, and lack of memory effect. To cater to the charging needs of LIBs, the 3 Bank Lithium Battery Charger has been developed, offering an efficient, safe, and intelligent solution for simultaneously charging multiple LIBs. This article delves into the technical principles, application areas, key features, and future trends of the 3 Bank Lithium Battery Charger.

Technical Principles

Basics of Lithium-Ion Batteries

Lithium-ion batteries, abbreviated as LIBs, use lithium metal or lithium alloys as the anode material and employ non-aqueous electrolyte solutions. Compared to traditional batteries, LIBs boast higher energy density, longer lifespans, and lower self-discharge rates. However, LIBs have strict requirements for charging conditions, as improper operations such as overcharging, over-discharging, or short-circuiting can damage the battery or even lead to safety hazards.

Working Principle of 3 Bank Charger

The 3 Bank Lithium Battery Charger is designed to charge three LIB packs or cells simultaneously. Its core technology lies in precisely controlling the charging current and voltage for each channel to ensure that each battery charges safely and efficiently.

  1. Constant Current Charging Phase: When the battery's charge level is low, the charger supplies a constant current to rapidly increase the battery's charge. This phase aims to charge the battery quickly while avoiding damage from high current surges.

  2. Constant Voltage Charging Phase: Once the battery voltage reaches a preset threshold, the charger switches to a constant voltage charging mode. During this phase, the charging current gradually decreases until the battery is fully charged. Constant voltage charging helps ensure that the battery is fully charged without overcharging.

  3. Intelligent Protection Mechanisms: The 3 Bank Charger incorporates multiple intelligent protection mechanisms, including overcharge protection, over-discharge protection, short-circuit protection, and temperature protection, to ensure a safe and reliable charging process. These mechanisms monitor the battery's status in real-time and immediately cut off the charging circuit upon detecting any abnormalities to prevent battery damage or safety incidents.

Key Technologies

  • High-Precision Control: Advanced control algorithms and circuit designs enable precise control of charging current and voltage, enhancing charging efficiency and safety.

  • Smart Recognition: The charger can identify different models and capacities of LIBs, automatically adjusting charging parameters to meet the specific charging needs of each battery.

  • Independent Channel Control: Each charging channel operates independently, ensuring that each battery receives optimal charging performance without interference from other channels.

Application Areas

Consumer Electronics

LIBs are widely used in consumer electronics such as smartphones, tablets, laptops, and Bluetooth headphones. The 3 Bank Charger satisfies users' need to charge multiple devices simultaneously, improving charging efficiency and saving time. For instance, during travel or at the office, users can charge their phone, tablet, and Bluetooth headphones simultaneously with just one charger.

Electric Vehicles

As electric vehicles (EVs) gain popularity, LIBs, as the core power source, have garnered attention for their charging requirements. The 3 Bank Charger is applicable in EV charging stations or household charging environments, enabling simultaneous charging of multiple battery packs, enhancing charging efficiency, and reducing charging time.

Energy Storage Systems

Energy storage systems play a crucial role in efficient utilization of renewable energy. In these systems, LIBs serve as the primary energy storage component, and their charging efficiency and safety directly impact system performance. The 3 Bank Charger can charge multiple LIB packs simultaneously, enhancing the charging efficiency of energy storage systems and reducing operational costs.

Advantages and Features

Safety and Reliability

The 3 Bank Charger incorporates multiple intelligent protection mechanisms to ensure a safe and reliable charging process. Whether it's overcharging, over-discharging, short-circuiting, or excessive temperatures, the charger responds promptly by cutting off the charging circuit to prevent battery damage or safety incidents.

Efficiency and Energy Savings

With high-precision control algorithms and circuit designs, the 3 Bank Charger achieves precise control of charging current and voltage, enhancing charging efficiency. Additionally, the independent channel control design ensures that each channel's charging process is unaffected by others, further improving charging efficiency.

Convenience and Ease of Use

The 3 Bank Charger supports various LIB models and capacities, eliminating the need for users to worry about battery compatibility issues. Its user-friendly interface allows for easy operation, following simple instructions.

Environmental Friendliness

As an environmentally friendly battery type, LIBs' charging process should also prioritize energy efficiency and environmental protection. The 3 Bank Charger considers energy utilization efficiency during design, optimizing charging algorithms and circuit designs to reduce energy consumption and emissions during charging.

Future Trends

Intelligent Development

With the advancements in IoT, big data, and AI technologies, the 3 Bank Charger is poised for intelligent development. Future chargers will possess more powerful data processing capabilities and smarter charging strategies, automatically adjusting charging parameters based on users' charging habits and battery status for more precise and efficient charging.

Modular Design

Modular design is a significant trend in future charger development. By dividing the charger into multiple functional modules, users can select and combine different modules according to their needs, enabling more flexible and convenient charging solutions. For example, users can choose different numbers of charging channels or power modules based on their requirements.

Wireless Charging Technology

The continuous development of wireless charging technology presents new opportunities for the 3 Bank Charger. Future chargers may integrate wireless charging technology, enabling more convenient and untethered charging experiences. Users can simply place their devices in the charging area for automatic charging, eliminating the hassle of tangled cables and worn-out ports.

High-Performance Material Applications

Advancements in materials science will see the wider application of high-performance materials in LIBs and chargers. For instance, the adoption of novel electrode materials and electrolytes can further enhance LIBs' energy density and cycle life. Similarly, the use of efficient heat dissipation materials can reduce the charger's operating temperature, improving charging efficiency and longevity.

Conclusion

The 3 Bank Lithium Battery Charger, with its efficient, safe, and intelligent design, holds immense potential for applications in consumer electronics, electric vehicles, and energy storage systems. As technology progresses and market demands grow, the 3 Bank Charger will continue to evolve, embracing intelligent development, modular design, wireless charging technology, and high-performance material applications. These advancements will bring even more convenience and excitement to people's lives.



SHENZHEN GREEN DIGITAL POWER TECH CO., LTD was established in May 2010, dedicated to R&D, production and market of digital power conversion, intelligent charger, high-power power adapter, battery BMS,battery test device, battery banlance module and other product., High efficiencyGaN ACDC power supply, DCDC power supply, Medium and high power charger.Learn more about our products and applications:

li-ion battery charger    AGM battery charger    NIMH battery charger    LiFePO4 (LFP) battery charger    Type C charger    GEL battery charger        customized battery charger


P2012-xx  20W   Lithium Ion battery charger

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Input feature

AC 100~240V 50~60Hz 0.5A

Output feature

& suit battery

P2012-L2: 8.4V 2.0A, suit 2s Li-ion 2~20Ah

P2012-L3: 16.8V 1.5A, suit 3s Li-ion 2~15Ah

P2012-L4, 16.8V 1.3A, suit 4s Li-ion 2~13Ah

Power efficiency

83%

Charge Curve

constant current  + constant voltage

Charge Display

Bi-color LED, RED charging, GREEN full/idle

Size & Weight

83 x 43 x 30mm/120g

Protections

OCP, OVP, short circuit, battery reversed

Safety & EMC

TUV, CE, cTUVus, PSE

Housing & cooling

ABS+PC plastic housing, natural cooling (without fan)

Input & output type

AC plug type: US, VDE, PSE, CCC; DC type: 5.5*2.5*12mm barrel plug

Click here to learn more details information about this charger.


G60-xx  50W   Lithium Ion charger with SOC level

图片2.png 

Input feature

AC 100~240V 50~60Hz 1.0A

Output feature

& suit battery

G60-12L3: 12.6V 3.3A, suit 3s Li-ion 3~33Ah

G60-12L4: 16.8V 2.8A, suit 4s Li-ion 3~28Ah

G60-12L7, 29.4V 1.8A, suit 7s Li-ion 2~18Ah

Power efficiency

83%

Charge Curve

pre-charge + C.C. charge + C.V. charge + cut-off

Charge Display

Four LEDs to indicate battery SOC (capacity level)

Size & Weight

120 x 67 x 38mm/270g

Protections

OCP, OVP, short circuit, battery reversed

Safety & EMC

CCC, CE, cTUVus, FCC, PSE

Housing & cooling

ABS+PC plastic housing, natural cooling (without fan)

Input & output type

AC inlet ICE-320-C8 type;; DC type: 5.5*2.5*12mm barrel plug

Click here to learn more details information about this charger.


GaN065-xxxyyy  50W  Lithium Ion charger with SOC level

图片3.png 

Input feature

AC 100~240V 50~60Hz 1.0A

Output feature

& suit battery

GaN065-084050: 8.4V 5.0A, suit 2s Li-ion 5~50Ah

GaN065-126040: 12.6V 4.0A, suit 3s Li-ion 4~40Ah

GaN065-168030: 16.8V 3.0A, suit 4s Li-ion 3~30Ah

GaN065-210024: 21.0V 2.4A, suit 5s Li-ion 2~24Ah

GaN065-252020: 25.2V 2.0A, suit 6s Li-ion 2~20Ah

GaN065-294018, 29.4V 1.8A, suit 7s Li-ion 2~18Ah

Power efficiency

90% (GaN solution, compact size)

Charge Curve

pre-charge + C.C. charge + C.V. charge + cut-off

Charge Display

Four LEDs to indicate battery SOC (capacity level)

Size & Weight

75 x 43 x 28mm/100g

Protections

OCP, OVP, short circuit, battery reversed

Safety & EMC

CE, FCC

Housing & cooling

ABS+PC plastic housing, natural cooling (without fan)

Input & output type

AC inlet ICE-320-C8 type; DC type: 5.5*2.5*12mm barrel plug

Click here to learn more details information about this charger


G100-xx  90W    Lithium Ion charger with SOC level

图片4.png 

Input feature

AC 100~240V 50~60Hz 1.5A

Output feature

& suit battery

G100-12L3: 12.6V 5.0A, suit 3s Li-ion 5~50Ah

G100-12L4: 16.8V 4.5A, suit 4s Li-ion 5~45Ah

G100-24L, 29.4V 2.8A, suit 7s Li-ion 3~28Ah

G100-36L: 42.0V 1.8A, suit 10s Li-ion 2~18Ah

G100-48L, 58.8V 1.5A, suit 14s Li-ion 2~15Ah

Power efficiency

83%

Charge Curve

pre-charge + C.C. charge + C.V. charge + cut-off

Charge Display

Four LEDs to indicate battery SOC (capacity level)

Size & Weight

175 x 72 x 40mm/400g

Protections

OCP, OVP, short circuit, battery reversed

Safety & EMC

CCC, CE, cTUVus, FCC, PSE

Housing & cooling

ABS+PC plastic housing, natural cooling (without fan)

Input & output type

AC inlet ICE-320-C8 type;; DC type: 5.5*2.5*12mm barrel plug

Click here to learn more details information about this charger


GaN085-xxxyyy  85W    Lithium Ion charger with SOC level

图片5.png 

Input feature

AC 100~240V 50~60Hz 1.5A

Output feature

& suit battery

GaN085-126060: 12.6V 6.0A, suit 3s Li-ion 6~60Ah

GaN085-168050: 16.8V 5.0A, suit 4s Li-ion 5~50Ah

GaN085-210040, 21.0V 4.0A, suit 5s Li-ion 4~40Ah

GaN085-252030: 25.2V 3.0A, suit 6s Li-ion 3~30Ah

GaN065-294028, 29.4V 2.8A, suit 7s Li-ion 3~28Ah

GaN065-420020, 42.0V 2.0A, suit 10s Li-ion 2~20Ah

Power efficiency

90% (GaN solution, compact size)

Charge Curve

pre-charge + C.C. charge + C.V. charge + cut-off

Charge Display

Four LEDs to indicate battery SOC (capacity level)

Size & Weight

114 x 68 x 29mm/350g

Protections

OCP, OVP,short circuit, battery reversed

Safety & EMC

CE, FCC

Housing & cooling

ABS+PC plastic housing, natural cooling (without fan)

Input & output type

AC inlet ICE-320-C8 type;; DC type: 5.5*2.5*12mm barrel plug

Click here to learn more details information about this charger


 

G168-xxxyyy  168W  Lithium Ion battery charger

图片6.png 

Input feature

AC 100~240V 50~60Hz 2.0A, PF>0.95

Output feature

& suit battery

G168-126120: 12.6V 12A, suit 3s Li-ion 10~120Ah

G168-168100: 16.8V 10A, suit 4s Li-ion 10~100Ah

G168-294057, 29.4V 5.7A, suit 7s Li-ion 6~60Ah

G168-420040: 42.0V 4.0A, suit 10s Li-ion 4~40Ah

G168-588280: 58.8V 2.8A, suit 14s Li-ion 3~28Ah

Power efficiency

92%

Charge Curve

pre-charge + C.C. charge + C.V. charge + cut-off

Charge Display

Bi-color LED, RED charging, GREEN full/idle

Size & Weight

175 x 72 x 40mm/700g

Protections

OCP, OVP, short circuit, battery reversed

Safety & EMC

cTUVus, CCC, TUV, CE, CB, RCM, PSE, FCC, KC

Housing & cooling

ABS+PC plastic housing, natural cooling (without fan)

Input & output type

AC inlet ICE-320-C8 type; DC type: 5.5*2.5*12mm barrel plug

Click here to learn more details information about this charger  


G168-xxxyyy  168W  Lithium Ion battery charger

图片7.png 

Input feature

AC 100~240V 50~60Hz 3.5A, PF>0.95

Output feature

& suit battery

G300-126180: 12.6V 18A, suit 3s Li-ion 20~200Ah

G300-168180: 16.8V 18A, suit 4s Li-ion 20~200Ah

G300-252110, 25.2V 11A, suit 6s Li-ion 11~110Ah

G300-294100, 29.4V 10A, suit 7s Li-ion 10~100Ah

G300-420070: 42.0V 7.0A, suit 10s Li-ion 7~70Ah

G300-588050: 58.8V 5.0A, suit 14s Li-ion 5~50Ah

Power efficiency

92%

Charge Curve

pre-charge + C.C. charge + C.V. charge + cut-off

Charge Display

Bi-color LED, RED charging, GREEN full/idle

Size & Weight

220 x 105 x 43mm/1300g

Protections

OCP, OVP, short circuit, battery reversed

Safety & EMC

CB, cTUVus, CE, FCC

Housing & cooling

ABS+PC plastic housing, natural cooling (without fan)

Input & output type

AC inlet ICE-320-C14 type;  DC type:  SB-50/XT-60

Click here to learn more details information about this charger  



G600-xxxyyy  600W  Lithium Ion battery charger

图片8.png 

Input feature

AC 100~240V 50~60Hz 7A, PF>0.95

Output feature

& suit battery

G600-168330: 16.8V 33A, suit 4s Li-ion 33~330Ah

G600-252240, 25.2V 24A, suit 6s Li-ion 24~240Ah

G600-294200, 29.4V 20A, suit 7s Li-ion 20~200Ah

G600-420142: 42.0V 14A, suit 10s Li-ion 14~140Ah

G600-504120: 50.4V 12A, suit 12s Li-ion 10~120Ah

G600-588100, 58.8V 10A, suit 14s Li-ion 10~100Ah

Power efficiency

92%

Charge Curve

pre-charge + C.C. charge + C.V. charge + cut-off

Charge Display

LCD digital display show voltage, current, capacity, SOC, SOH and run time

Size & Weight

240x 117 x 66mm/1500g

Protections

OCP, OVPOTP, short circuit, battery reversed

Safety & EMC

CB, cTUVus, CE, FCC

Housing & cooling

Aluminum Alloy housing, FAN cooling,

Input & output type

AC inlet ICE-320-C14 type; DC type: XT-60

Communication port: CAN ( Click here to learn more details information)


WP800-xxxyyy  800W  Lithium Ion battery charger (IP67 Waterproof)

图片9.png 

Input feature

AC 100~240V 50~60Hz 8A, PF>0.95

Output feature

& suit battery

WP800-126400: 12.6V 40A, suit 3s Li-ion 40~400Ah

WP800-168400: 16.8V 40A, suit 4s Li-ion 40~400Ah

WP800-294250: 29.4V 25A, suit 7s Li-ion 25~250Ah

WP800-420180: 42.0V 18A, suit 10s Li-ion 18~180Ah

WP800-588140: 58.8V 14A, suit 14s Li-ion 14~140Ah

WP800-840100: 84.0V 10A, suit 20s Li-ion 10~100Ah

Power efficiency

92%

Charge Curve

pre-charge + C.C. charge + C.V. charge + cut-off

Charge Display

Three-color LED indicate charging status

Size & Weight

288x 130 x 82mm/2500g

Protections

OCP, OVP, short circuit, battery reversed,waterproof

Safety & EMC

CE, FCC

Housing & cooling

Aluminum Alloy casting housing, FAN cooling, IP67 class

Input & output type

AC plug type: US, EU, PSE, CCC; DC type: XT-90

Communication port: CAN ( Click here to learn more details information)


G1200-xxxyyy  1200W   Lithium Ion battery charger

图片10.png 

Input feature

AC 100~240V 50~60Hz 13A, PF>0.95

Output feature

& suit battery

G1200-294360: 29.4V 36A, suit 7s Li-ion 36~360Ah

G1200-420280: 42.0V 28A, suit 10s Li-ion 28~280Ah

G1200-504200: 50.4V 20A, suit 12s Li-ion 20~200Ah

G1200-546200: 54.6V 20A, suit 13s Li-ion 20~200Ah

G1200-588200: 58.8V 20A, suit 14s Li-ion 20~200Ah

Power efficiency

92%

Charge Curve

pre-charge + C.C. charge + C.V. charge + cut-off

Charge Display

LCD digital display show voltage, current, capacity, SOC, SOH and run time

Size & Weight

265x 134 x 60mm/2500g

Protections

OCP, OVPOTP, short circuit, battery reversed

Safety & EMC

CB, cTUVus, CE, FCC

Housing & cooling

Aluminum Alloy housing, FAN cooling,

Input & output type

AC inlet ICE-320-C14 type; DC type: SB-50

Communication port: CAN ( Click here to learn more details information)


WP1800-xxxyyy  1800W  Lithium Ion battery charger (IP67 Waterproof)

图片11.png 

Input feature

AC 100~240V 50~60Hz 16A, PF>0.95

Output feature

& suit battery

WP1800-294500: 29.4V 50A, suit 7s Li-ion 50~500Ah

WP1800-420400: 42.0V 40A, suit 10s Li-ion 40~400Ah

WP1800-504300: 50.4V 30A, suit 12s Li-ion 30~300Ah

WP1800-546300: 54.6V 30A, suit 13s Li-ion 30~300Ah

WP1800-588300: 58.8V 30A, suit 14s Li-ion 30~300Ah

WP1800-840200, 84.0V 20A, suit 20s L-ion 20~200Ah

Power efficiency

92%

Charge Curve

pre-charge + C.C. charge + C.V. charge + cut-off

Charge Display

Three-color LED indicate charging status

Size & Weight

288x 168 x 89mm/4300g

Protections

OCP, OVP, short circuit, battery reversed, waterproof

Safety & EMC

CE, FCC

Housing & cooling

Aluminum Alloy casting housing, FAN cooling, IP67 class

Input & output type

AC plug type: US, EU, PSE, CCC; DC type: Anderson SB-50

Communication port: CAN ( Click here to learn more details information)


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