Description

Eastman 11.77kWh 48V Low-Voltage Lithium Battery (ES51.2-230LP)

Product Overview

The Eastman ES51.2-230LP is a high-capacity, heavy-duty energy storage solution designed for users with significant power demands. Available through Powernest Limited, this 11.77kWh unit (effectively 11kWh+) provides more than double the energy of standard 5kWh modules in a single, robust enclosure. It is specifically engineered for 48V solar systems, making it an ideal choice for pairing with Deye, Victron, or GoodWe inverters to provide extended backup during long power outages or to maximize solar self-consumption in large villas and commercial offices.

Key Features

• Massive Energy Density: Boasts an 11.77kWh capacity (230Ah), allowing for longer backup times and the ability to run heavy loads like air conditioners and large refrigerators for extended periods.

• Exceptional Cycle Life: Rated for 6,000 cycles at 80% Depth of Discharge (DoD). Under standard operating conditions, this battery is built to last 15+ years, providing one of the best “cost-per-cycle” values in the market.

• High Output Performance: Supports a 200A maximum continuous discharge current. This allows a single battery module to deliver nearly 10kW of instant power, easily handling the start-up surges of large motors and pumps.

• Real-Time LCD Monitoring: Features an integrated front-facing LCD screen that displays critical data, including State of Charge (SOC), voltage, current, and temperature, giving you total visibility of your energy reserves.

• Industrial Thermal Management: Encased in a high-grade metal shell with intelligent heat dissipation, ensuring stable performance even in high-ambient-temperature environments common in tropical climates.

• Seamless Scalability: While a single unit offers massive power, you can parallel up to 15 modules via RS485/CAN communication to create a utility-scale battery bank of over 170kWh.

Technical Specifications

• Model: ES51.2-230LP (Low Voltage Series)

• Nominal Energy: 11.77 kWh

• Nominal Voltage: 51.2 V

• Nominal Capacity: 230 Ah

• Max. Continuous Charge/Discharge: 200 A

• Peak Discharge Current: 250 A (Short duration)

• Cycle Life: ≥6,000 cycles (@ 25°C, 80% DoD)

• Design Life: 10–15+ Years

• Dimensions: 670 x 480 x 244 mm

• Net Weight: ~93 kg

• Installation: Floor-mount (recommended due to weight) or Rack-mount

• Communication: RS485 / CAN / RS232

• Warranty: 5-Year Standard Warranty (up to 10 years depending on local T&Cs)