EG4
EG4 LL Lithium Battery (V2) 24V 200AH | Server Rack Battery – Available in 2–6 Unit Bundles
EG4 LL Lithium Battery (V2) 24V 200AH | Server Rack Battery
Introducing the upgraded EG4-LL (Lifetime Lithium) Lithium Iron Phosphate battery, now available in 25.6V (24V) and 5.12kWh with a 100A internal BMS, while retaining the advanced features of the acclaimed EG4-LL Battery. It remains fully compatible with the previous EG4-LL model.
This battery is built with 16 UL-listed prismatic 3.2V cells and is rigorously tested for 7,000 deep discharge cycles at 80% DoD, guaranteeing over 15 years of reliable daily use. It operates with 99% efficiency, making it a robust energy storage solution.
It includes an LCD screen for easy access to key battery data and supports selectable closed-loop inverter communications with brands such as Schneider, Solark, Victron, Growatt, and EG4, ensuring smooth integration and straightforward setup.
EG4 Lifetime Lithium, Best In Class Solar Rack Battery
- 7000 deep charge & discharge cycles rated / Designed for a 15-year life with 80% depth of discharge daily, extendable up to 20 years
- Tier One, A+ Cell Composition, 99% Efficiency LiFePo4 16-Cell Pack
- #1 Energy Density Server Rack Battery Form Factor
- Selectable closed-loop inverter communications including Schneider, Solark, Victron, Growatt, and EG4!
- Dual Onboard automatic fire arrestors for failsafe operation in high-risk environments/ Protection against rare hardware failure on high voltage solar charge controllers
- Parallel up to 16 batteries / Get the most power possible! Up to 81.9kWh while maintaining BMS communications!
- Have existing V1 EG4-LL Batteries? Enable expanded communication for existing V1 EG4-LL Battery Banks by using a new V2 EG4-LL Battery as your master battery. This feature will be available with a firmware upgrade that will be released soon.
Performance Components
- Reliable Integrated EG4 Smart BMS for Voltage, Current, Temperature, and Health Management
- Hassle-Free Battery Bank Expansion Capability
- Voltage Protection for Cells & Modules
- Short Circuit Protection >250A with <0.1mS Response Time
- Temperature Protection
- Operating Power Consumption Less than 25mA
Advanced Configurability
- On-board LCD Screen
- PC Monitoring Software
- Lifetime firmware updates
Reliability & Safety Testing
- Dual On-board Fire Arrestors
- Environmentally Friendly & Lead-Free
- Design Optimized and Tested by EG4's R&D Solar Laboratory. In-House & Texas Based
- 10-Year Warranty Supported and serviced out of Texas
What's Included
Everything you need is included with your product.
- (1) EG4-LL battery module
- (1) Battery Parallel Cable
- (1) Battery to PC USB Cable
- (1) Positive & (1) Negative Power Cable
- (2) M8-1.25 Terminal Bolts
- User Manual
EG4 12kPV Hybrid Inverter Specifications
MODULE OPERATING PARAMETERS
| Category | Specification |
| Voltage | 25.6V |
| Capacity | 200Ah |
| Charging Voltage (Bulk/Absorb) | 28.0V (+/-0.4V) |
| Float | 27.0V (+/-0.2V) |
| Low DC Cutoff | 23.5 – 22.6V (depending on load – start high, lower if needed) |
| Charging Current | 200A (Max. Continuous) |
| Discharging Current | 200A (Max. Continuous) |
ENVIRONMENTAL PARAMETERS
| Category | Specification |
| Charging Range | 32°F - 113°F (0°C to 45°C) |
| Discharging Range | -4°F - 122°F (-20°C - 50°C) |
| Storage Range | -4°F - 122°F (-20°C - 50°C) |
| Ingress Protection | IP20 |
BMS PARAMETERS
| Category | Specification |
| Cell Voltage Protection | 3.8V | 1s | 3.45V |
| Module Voltage Protection | 30.0V | 1s | 27.6V |
| Over Charging Current 1 | >220A | 10s |
| Over Charging Current 2 | ≥250A | 3s |
| Temperature Protection | <23°F or >158°F <-5°C or >70°C | 1s | <41°F or >140°F >5°C or <60°C |
DISCHARGE
| Category | Specification |
| Cell Voltage Protection | 2.3V | 1s | 3.1V |
| Module Voltage Protection | 22.4V | 1s | 24.0V |
| Over Charging Current 1 | >220A | 30s | 60s |
| Over Charging Current 2 | >300A | 5s | 60s |
| Short-Circuit | >500A | <0.1mS |
| Temperature Protection | <-4°F or >167°F <-20°C or >75°C | 1s | >14°F or <149°F >-10°C or <65°C |
| PCB Temp Protection | >221°F (>105°C) | 1s | <176°F (<80°C) |
GENERAL SPECIFICATIONS
| Category | Specification |
| Cell Balance | 120mA | Passive Balance | Cell Voltage Difference >40mV |
| Temperature Accuracy | 3% | Cycle Measurement | Measuring Range -40°F ‒ 212°F (-40°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 |
| Power Consumption (Operating) | <20mA - Charging/Discharging |
| Communication Ports | RS485/CAN | Customizable |
| Maximum Modules in Parallel | 16 |
| Dimension (H×W×D) | 6.1 in.×19 in.×20.2 in. (15.5 cm×48.2 cm×51.3 cm) |
| Weight | 99.2 lbs. (44.5 kg) |
Frequently-Asked Questions
Can I connect multiple batteries together for more storage?
Yes! The EG4 LL Lithium Battery V2 supports both parallel and series connections, allowing users to expand their storage capacity.
What type of battery chemistry does this use?
This battery utilizes LiFePO4 (Lithium Iron Phosphate), known for long cycle life, high safety, and efficiency.
Is this battery compatible with my existing solar inverter?
The EG4 LL Lithium Battery V2 is compatible with most 24V inverters and solar charge controllers.
How long does this battery last?
With 10,000+ charge cycles, this battery can last over 10 years under normal use.
Can this battery be used in a grid-tied solar system?
Yes! This battery is ideal for both off-grid and grid-tied energy storage systems with battery backup functionality.