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