Eastman 11.77kWh Lithium Battery

Description

Eastman 11.77kWh Lithium Battery Overview

• High-Capacity Storage: 11.77kWh usable energy at 51.2V nominal voltage—ideal for whole-home backup, large households, or light commercial applications .

• Wall-Mount Design: Space-saving vertical installation with included wall bracket frees up floor space while providing a clean, professional appearance .

• Advanced LiFePO₄ Chemistry: Utilizes safe, long-life lithium iron phosphate battery cells with exceptional thermal stability and over 6,000 cycles at 80% depth of discharge .

• Scalable Parallel Capability: Support up to 15 independent modules in parallel, allowing system expansion from 11.77kWh to over 176kWh as your energy needs grow .

• Smart Battery Management: Advanced BMS with comprehensive protection against overcharge, deep discharge, short circuit, and temperature extremes .

• Real-Time Monitoring: External color touch screen and LED indicators for instant visibility of battery status and performance metrics .

• Multiple Communication Options: RS232, RS485, and CAN interfaces enable seamless communication with inverters and remote monitoring systems .

• Intelligent Active Cooling: Scientific heat dissipation system maintains internal temperature consistency, prolonging service life and enabling continuous high-current output .

Eastman 11.77kWh Lithium Battery Technical Specifications

Key Features Explained

Advanced LiFePO₄ Technology

The Eastman ES51.2-230LP employs high-performance lithium iron phosphate battery cells as the fundamental energy storage unit. LiFePO₄ chemistry offers superior safety characteristics, exceptional thermal stability, and over 6,000 cycles at 80% depth of discharge—providing 10+ years of reliable service in daily solar applications .

Wall-Mount Design

Unlike traditional floor-standing batteries, the ES51.2-230LP features an integrated wall bracket that mounts securely to any load-bearing wall . This design:

• Frees up valuable floor space in utility rooms and garages

• Provides a clean, professional installation appearance

• Keeps the battery at accessible height for monitoring and maintenance

• Includes handles for easier positioning during installation

Intelligent Thermal Management

Through scientific and reasonable active heat dissipation, the system improves internal temperature field consistency. This extends battery service life and enables continuous high-current output when your home demands more power .

Comprehensive Monitoring

The external color touch screen provides real-time visibility into battery performance . Six LED indicators show approximate state of charge (SOC), with each LED representing about 17% capacity . For detailed monitoring, the communication ports allow connection to computers or inverters.

Flexible Communication Options

• RS485/CAN Interface: Connects directly to inverters, allowing the inverter to monitor battery voltage, current, temperature, SOC, SOH, and status

• RS232 Interface: Enables single-pack monitoring via computer

• RS485 Daisy Chain: Used when paralleling multiple batteries—the master pack communicates with slave packs, and all information is accessible through the master’s RS485/CAN port

Scalable Power Architecture

Starting from 11.77kWh, the system can be expanded by adding up to 15 parallel modules . Each module requires a unique hardware address set via DIP switches . This modular approach lets you start with the capacity you need today and grow as your energy requirements increase.

Multiple Protection Functions

The advanced BMS provides comprehensive protection :

• Overcharge protection

• Deep discharge protection

• Cell over/under voltage protection

• Over current protection (charge/discharge)

• Short circuit protection

• Temperature protection

Applications

• Whole-Home Energy Storage: Store solar power for nighttime use, reducing grid dependence and electricity bills for large households .

• Backup Power: Keep essential loads and whole-home circuits running during extended grid outages .

• Off-Grid Homes: Complete energy independence for properties without grid access .

• Peak Shaving: Reduce demand charges by drawing from battery during peak rate periods .

• Time-of-Use Optimization: Charge during low-rate periods and discharge when rates are high .

• Commercial Backup: Reliable power for small businesses, telecommunications, and critical infrastructure .

Installation Guidelines

Wall-Mount Installation Steps

1. Mounting Bracket: Install the wall mounting plate using M8 expansion screws on a load-bearing wall. Ensure the installation is firm and level .

2. Protrusion Control: The height of expansion screws protruding from the wall must be controlled within 25mm to avoid interference with the battery box during installation .

3. Battery Placement: Carefully lift the battery and engage it with the mounted bracket. The design allows secure attachment while maintaining accessibility .

4. Securing: Follow picture 4 in the manual to secure the bottom if required for your installation .

General Installation Notes

• Location: Install in a clean, dry, well-ventilated area away from direct sunlight and extreme temperatures

• Rain Protection: For outdoor installations, ensure rain-proof and moisture-proof protection is installed

• No Metal Objects: Do not place metal products near the battery to prevent short circuits

• Proper Connections: Virtual connection points and corroded wires may generate high heat—ensure all connections are clean and tight

• Wiring: Use appropriate cable diameters as recommended for 200A continuous current capability

Parallel Configuration

For multiple units :

1. Set unique hardware addresses for each pack using DIP switches (Pack 1 as host, subsequent packs as 2, 3, etc.)

2. Connect communication cables in daisy chain configuration

3. Connect power terminals in parallel using appropriately sized busbars or cables

4. All settings can be adjusted through the master pack’s communication port

Operation Guide

Power ON/OFF

• To Activate (from sleep): Press and hold the reset button for 3-6 seconds, then release

• To Sleep (when active): Press and hold the reset button for 3-6 seconds, then release

Understanding LED Indicators

Six SOC LEDs show approximate charge level, with each representing about 17% of full capacity. As the battery discharges, LEDs turn off progressively from top to bottom.

Communication Address Selection

Dry Contacts

• AM1: Normally open, closes during fault protection conditions

• AM2: Normally open, closes during low energy alarm

Maintenance

• Visual Inspection: Periodically check terminals for tightness and casing for damage

• Clean Surface: Keep battery top clean and dry

• Software Monitoring: Use communication ports to periodically check cell balance and system health via the touch screen interface

• Firmware: Check with Eastman for any available firmware updates to ensure optimal performance

• Air Vents: Ensure cooling vents remain unobstructed for proper thermal management

Technical Comparison: ES51.2 Series Models

Why Choose Eastman 11.77kWh?

The Eastman ES51.2-230LP represents the ideal balance of capacity, safety, and intelligent design for modern homes :

• True 11.77kWh Capacity: Substantial storage for whole-home backup or large household consumption

• Space-Saving Design: Wall-mount configuration respects your living space

• Proven Cycle Life: 6,000+ cycles means 10-15 years of daily use

• Scalable: Start with 11.77kWh and add more as budget or needs grow

• Complete Visibility: Color touch screen puts system status at your fingertips

• Inverter Compatible: CAN/RS485 communication works with major inverter brands

Contact Us

Ready to power your entire home with the Eastman 11.77kWh wall-mount lithium battery? Contact our team today for expert advice, pricing, a free site assessment, or to discuss your specific energy requirements.

📞 Call / WhatsApp: 0794485343
📧 Email: info@globussolar.com
🌐 Web: www.globussolar.com