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Price Match Guarantee 💲 Fast & Free Shipping 📦 No Sales Tax 💵 Post Purchase Support 🤝 Free Replacement Parts 🛠️ Dealer Warranty 👷🏼 Extended Warranty!

Price Match Guarantee 💲 Fast & Free Shipping 📦 No Sales Tax 💵 Post Purchase Support 🤝 Free Replacement Parts 🛠️ Dealer Warranty 👷🏼 Extended Warranty!

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EG4 LL-S Lithium Battery | 48V 100AH | Server Rack Battery | UL1973, UL9540A | Available in 2 x 6 Unit Bundles

EG4 LL-S Lithium Battery | 48V 100AH | Server Rack Battery | UL1973, UL9540A | Available in 2 x 6 Unit Bundles

SKU EG4-LL-S48-100 x 2
Save $720.00
$3,599.97
$2,879.97
Battery Quantity

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    Full manufacturer warranty included

  • 4-5 Day Free Shipping + No Sales Tax

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  • Easy 30-Day Returns & Price Beat Guarantee

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ESTIMATED DELIVERY BETWEEN

Order within to get it by the earliest date.


EG4 LL-S Lithium Battery | 48V 100AH | Server Rack Battery | UL1973, UL9540A

EG4-LL lithium batteries offer second to none performance and longevity. Get peace of mind knowing our batteries are designed to last for more than 7000 deep charge and discharge cycles and have a life cycle of more than 15 years with an 80% depth of discharge daily. 

EG4 LL-S Lithium Battery | 48V 100AH | Server Rack Battery | UL1973, UL9540A Features

On-board LCD Touch Screen 

Easy to see BMS monitoring, and selectable closed-loop communications with EG4, Schneider, Sol-Ark, Victron, Growatt, Megarevo, Luxpower, and Deye inverters. 

Enhanced Safety Features 

E-Stop functionality offers fail-safe operation in potentially high-risk environments. (requires either additional

RSD/ESS disconnect or pairing with a supported rapid shutdown inverter in the system for e-stop functionality)

Dual On-Board fire arrestors allow for added peace of mind during operations. 

Parallel up to 64 Batteries 

For maximum power, our 6 DIP switch option allows you to have 327.6kWh while preserving BMS communications. 

 Placeholder Image

EG4 LL-S Lithium Battery | 48V 100AH | Server Rack Battery | UL1973, UL9540A Applications

  • Off-Grid Solar Storage – Reliable energy for cabins and off-grid homes.
  • Grid-Tied Backup – Reduces energy costs and provides backup power during outages.
  • Whole-Home & Commercial Use – Supports critical loads and optimizes energy efficiency.
  • Server Rack & Industrial Power – Compact design for UPS and data center storage.
  • Emergency Backup – Ensures power for essential appliances and medical devices.
 Placeholder Image

What's Included

Everything you need is included with your product.
  • (1) EG4-LL Battery Module
  • (1) Inter-battery Communication Cable
  • (1) ea. 5-AWG Pos. and Neg. Connection Cables
  • (4) M6-1.0 Terminal Bolts
  • User Manual
 Placeholder Image Placeholder Image

EG4 LL-S Lithium Battery Specifications

Module Operating Parameters
Category Specifications
Voltage 51.2V
Capacity 100AH
Charging Voltage (Bulk/Absorb) 56.8V | 56.2V (+/-0.2V)
Float 54V (+/-0.2V)
Low DC Cutoff 44.8V | 47-45.6V (start high, lower as needed)
Charging Current 100A (Max. continuous) | 30-50A
Discharging Current 100A (Max. continuous) | 90A

Environmental Parameters
Category Specifications
Charging Range 32° ‒ 113°F (0°C to 45°C)
Discharging Range -4°F ‒ 122°F (-20°C to 50°C)
Storage Range -4°F ‒ 122°F (-20°C to 50°C)
Ingress Protection IP20

Charging/ Discharging Parameters (Charge)
Category Specifications
Cell Voltage Protection 3.8V | 1 sec | 3.45V
Module Voltage Protection 60.0V | 1 sec | 55.2V
Over Charging Current 1 >102A | 20 sec
Over Charging Current 2 >120A | 3 sec
Temperature Protection <23°F or >158°F <-5°C or >70°C | 1 sec | >32°F or <140°F >0°C or 60°C

Charging/ Discharging Parameters (Discharge)
Category Specifications
Cell Voltage Protection 2.3V | 1 sec | 3.1V
Module Voltage Protection 44.8V | 1 sec | 48V
Over-Charging Current 1 >102A | 30 sec | 60 sec
Over-Charging Current 2 >150A | 3 sec | 60 sec
Short Circuit >300A | <0.1 mS
Temperature Protection <-4°F or >167°F <-20°C or >75°C | 1 sec | >14°F or <149°F >-10°C or <65°C
PCB Temp Protection >221°F (>105°C) | 1 sec | @ <176°F (<80°C)

General Specifications
Specifications Details
Cell Balance 120mA | Passive Balance | Cell Voltage Difference >40mV
Temperature Accuracy 3% | Cycle Measurement | Measuring Range: 40°F ‒ 212°F (-4°C ‒ 100°C)
Voltage Accuracy 0.5% | Cycle Measurement | For Cells/Module
Current Accuracy 3% | Cycle Measurement | Measurement Range: +/-200A
SOC 5% | Integral Calculation
Power Consumption Sleep & Off Mode | <300uA | Storage/Transport/ Standby
Power Consumption Operating Mode | <25mA | Charging/Discharging
Communication Ports RS485/CAN | Customizable
Maximum Modules in Series 1
Maximum Modules in Parallel 64
Dimensions (H×W×D) 6.1in×19in×17.4in (15.5cm×48.2cm×44.2cm)
Weight 99.6 lbs. (45.2 kg)
Module ETL Listed to UL Standard 9540A:2019
Cell UL:1973

Frequently-Asked Questions

Is the EG4 LL-S Lithium Battery compatible with all 48V inverters?

Yes! This battery is designed for seamless integration with most 48V inverters and solar energy systems.

Can I connect multiple batteries together for more storage?

Absolutely! The EG4 LL-S supports parallel connections, allowing users to expand their energy capacity as needed.

What safety certifications does this battery have?

The UL1973 and UL9540A certifications ensure safe operation, thermal stability, and fire resistance.

How long does this battery last?

With 10,000+ charge cycles, the battery is built to last over 10 years under normal usage.

Is this battery suitable for off-grid applications?

Yes! It is perfect for off-grid, hybrid, and grid-tied energy storage systems.

Manual

Shipping is FREE on all orders to customers within the 48 Contiguous States and the District of Columbia. We do not ship to Alaska, Hawaii, or any outlying islands and territories.

Processing time for orders is 1 business day

Shipping time for orders is 4-5 business days


Want to know more about our Returns Policy? Read more here.

Want to know more about our Shipping Policy? Read more here.

We get it. You've got a lot of choice when it comes to online retailers. Here's why we think you should shop with us at Krato Power.

  • Family Owned & Operated. Ask for Alex (Owner) at any time!
  • 4-5 Day Free Shipping with free liftgate service to the 48 Contiguous States and the District of Columbia. No extra charges. Ever
  • NO Sales Tax except for IN
  • Secured Purchase. All Customer data is secured with SSL Encryption
  • 30 Day Easy Returns. Not happy with your product, we'll take it back no questions asked.
  • Exceptional Customer Service. Check out our About Us page.
  • Call or Text Us - We are really here! (In the USA). 1-888-855-7286
In Stock and Ready To Ship

All of our items are in stock and ready to ship. All items ship within 1 business day.

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We have excellent customer service. Questions? Call us at 1-888-855-7286

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30 Day Easy Return Policy

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Description

EG4 LL-S Lithium Battery | 48V 100AH | Server Rack Battery | UL1973, UL9540A

EG4-LL lithium batteries offer second to none performance and longevity. Get peace of mind knowing our batteries are designed to last for more than 7000 deep charge and discharge cycles and have a life cycle of more than 15 years with an 80% depth of discharge daily. 

EG4 LL-S Lithium Battery | 48V 100AH | Server Rack Battery | UL1973, UL9540A Features

On-board LCD Touch Screen 

Easy to see BMS monitoring, and selectable closed-loop communications with EG4, Schneider, Sol-Ark, Victron, Growatt, Megarevo, Luxpower, and Deye inverters. 

Enhanced Safety Features 

E-Stop functionality offers fail-safe operation in potentially high-risk environments. (requires either additional

RSD/ESS disconnect or pairing with a supported rapid shutdown inverter in the system for e-stop functionality)

Dual On-Board fire arrestors allow for added peace of mind during operations. 

Parallel up to 64 Batteries 

For maximum power, our 6 DIP switch option allows you to have 327.6kWh while preserving BMS communications. 

 Placeholder Image

EG4 LL-S Lithium Battery | 48V 100AH | Server Rack Battery | UL1973, UL9540A Applications

  • Off-Grid Solar Storage – Reliable energy for cabins and off-grid homes.
  • Grid-Tied Backup – Reduces energy costs and provides backup power during outages.
  • Whole-Home & Commercial Use – Supports critical loads and optimizes energy efficiency.
  • Server Rack & Industrial Power – Compact design for UPS and data center storage.
  • Emergency Backup – Ensures power for essential appliances and medical devices.
 Placeholder Image

What's Included

Everything you need is included with your product.
  • (1) EG4-LL Battery Module
  • (1) Inter-battery Communication Cable
  • (1) ea. 5-AWG Pos. and Neg. Connection Cables
  • (4) M6-1.0 Terminal Bolts
  • User Manual
 Placeholder Image Placeholder Image

EG4 LL-S Lithium Battery Specifications

Module Operating Parameters
Category Specifications
Voltage 51.2V
Capacity 100AH
Charging Voltage (Bulk/Absorb) 56.8V | 56.2V (+/-0.2V)
Float 54V (+/-0.2V)
Low DC Cutoff 44.8V | 47-45.6V (start high, lower as needed)
Charging Current 100A (Max. continuous) | 30-50A
Discharging Current 100A (Max. continuous) | 90A

Environmental Parameters
Category Specifications
Charging Range 32° ‒ 113°F (0°C to 45°C)
Discharging Range -4°F ‒ 122°F (-20°C to 50°C)
Storage Range -4°F ‒ 122°F (-20°C to 50°C)
Ingress Protection IP20

Charging/ Discharging Parameters (Charge)
Category Specifications
Cell Voltage Protection 3.8V | 1 sec | 3.45V
Module Voltage Protection 60.0V | 1 sec | 55.2V
Over Charging Current 1 >102A | 20 sec
Over Charging Current 2 >120A | 3 sec
Temperature Protection <23°F or >158°F <-5°C or >70°C | 1 sec | >32°F or <140°F >0°C or 60°C

Charging/ Discharging Parameters (Discharge)
Category Specifications
Cell Voltage Protection 2.3V | 1 sec | 3.1V
Module Voltage Protection 44.8V | 1 sec | 48V
Over-Charging Current 1 >102A | 30 sec | 60 sec
Over-Charging Current 2 >150A | 3 sec | 60 sec
Short Circuit >300A | <0.1 mS
Temperature Protection <-4°F or >167°F <-20°C or >75°C | 1 sec | >14°F or <149°F >-10°C or <65°C
PCB Temp Protection >221°F (>105°C) | 1 sec | @ <176°F (<80°C)

General Specifications
Specifications Details
Cell Balance 120mA | Passive Balance | Cell Voltage Difference >40mV
Temperature Accuracy 3% | Cycle Measurement | Measuring Range: 40°F ‒ 212°F (-4°C ‒ 100°C)
Voltage Accuracy 0.5% | Cycle Measurement | For Cells/Module
Current Accuracy 3% | Cycle Measurement | Measurement Range: +/-200A
SOC 5% | Integral Calculation
Power Consumption Sleep & Off Mode | <300uA | Storage/Transport/ Standby
Power Consumption Operating Mode | <25mA | Charging/Discharging
Communication Ports RS485/CAN | Customizable
Maximum Modules in Series 1
Maximum Modules in Parallel 64
Dimensions (H×W×D) 6.1in×19in×17.4in (15.5cm×48.2cm×44.2cm)
Weight 99.6 lbs. (45.2 kg)
Module ETL Listed to UL Standard 9540A:2019
Cell UL:1973

Frequently-Asked Questions

Is the EG4 LL-S Lithium Battery compatible with all 48V inverters?

Yes! This battery is designed for seamless integration with most 48V inverters and solar energy systems.

Can I connect multiple batteries together for more storage?

Absolutely! The EG4 LL-S supports parallel connections, allowing users to expand their energy capacity as needed.

What safety certifications does this battery have?

The UL1973 and UL9540A certifications ensure safe operation, thermal stability, and fire resistance.

How long does this battery last?

With 10,000+ charge cycles, the battery is built to last over 10 years under normal usage.

Is this battery suitable for off-grid applications?

Yes! It is perfect for off-grid, hybrid, and grid-tied energy storage systems.

Manual
Shipping

Shipping is FREE on all orders to customers within the 48 Contiguous States and the District of Columbia. We do not ship to Alaska, Hawaii, or any outlying islands and territories.

Processing time for orders is 1 business day

Shipping time for orders is 4-5 business days


Want to know more about our Returns Policy? Read more here.

Want to know more about our Shipping Policy? Read more here.

Why Buy From Us

We get it. You've got a lot of choice when it comes to online retailers. Here's why we think you should shop with us at Krato Power.

  • Family Owned & Operated. Ask for Alex (Owner) at any time!
  • 4-5 Day Free Shipping with free liftgate service to the 48 Contiguous States and the District of Columbia. No extra charges. Ever
  • NO Sales Tax except for IN
  • Secured Purchase. All Customer data is secured with SSL Encryption
  • 30 Day Easy Returns. Not happy with your product, we'll take it back no questions asked.
  • Exceptional Customer Service. Check out our About Us page.
  • Call or Text Us - We are really here! (In the USA). 1-888-855-7286