Morningstar Integration Guide

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Fortress Power & Morningstar

Introduction:

With over four million sold since 1993, Morningstar is recognized as the expert in charging technology

throughout the solar industry. As solar-plus-storage becomes more prevalent in mainstream

installations, battery chemistries are becoming more advanced—and battery makers are increasingly

looking for ways to help their customers maintain and protect their long-term investment.

Morningstar’s Energy Storage Partner program



(ESP) makes it possible for selected premium battery

partners to offer additional value and support for their customers by offering them a more proven,

better documented and controlled storage system. With energy storage typically accounting for a very

large share of the overall system’s cost, ESP helps advanced chemistry battery manufacturers to provide

the maximum level of assurance that system owners and operators need. This document is intended to

provide essential information and recommendations for integrating Morningstar charge controllers with

the Energy Storage Partner’s batteries. Proper integration of these products is dependent upon

successful implementation of the custom settings outlined in the sections below. These settings are the

result of cooperation between manufacturers and have been agreed upon by both parties.

Battery Overview:

The High-Performance Fortress Lithium Battery is easy to install, safe, and consistently reliable. It

provides the lowest lifetime energy cost for both new solar customers and retrofit customers. Fortress

Lithium Battery has the industry’s most advanced technology with a Battery Management System that

integrates multilevel safety concepts, including overcharge and deep discharge protection, voltage and

temperature observation as well as single cell monitoring and balancing.

Key Characteristics:

● LFP is the safest Lithium-ion chemistry available—no risk of thermal runaway or fire; do not

require ventilation, cooling or thermal regulation

● 98% roundtrip efficiency

● Built-in accessible DC breaker On/Off switch – increases safety and simplifies installations

● Large power capacity for easy installation

● Compatible with all industry standard inverter/charge controllers

● Drop in replacement for lead acid

Models: LFP-10, eVault 16.5

Voltages: 48V

Amp Hour Capacities: 200-360Ah

Summary of content (4 pages)

PAGE 1
Fortress Power & Morningstar Introduction: With over four million sold since 1993, Morningstar is recognized as the expert in charging technology throughout the solar industry. As solar-plus-storage becomes more prevalent in mainstream installations, battery chemistries are becoming more advanced—and battery makers are increasingly looking for ways to help their customers maintain and protect their long-term investment.
PAGE 2
Note: F or information regarding module system configuration options, please contact the energy storage manufacturer. For optimal integration, the recommended settings (based on 12V nominal values) are as follows: Critical Settings: Absorption Voltage = 13.85 V Absorption Time = 6 min Temperature Compensation = 0.0 V/degC (Disabled) Float/Float Voltage/Timeout = Enable/13.
PAGE 3
Load Current Compensation ……………………………… Default = 0.002 Ω (V/A), should be calculated based on 0.35/C (Reduces Load LVD based on size of load with respect to battery Ah capacity) Load HVD/High Voltage Disconnect/Reconnect............ Enable/14.30 V/13.
PAGE 4
Morningstar Best Practices by Battery Chemistry Morningstar Custom Settings Info Pages IMPORTANT: Fortress Power and Morningstar Corporation are separate companies with unaffiliated ownership. Neither Fortress Power nor Morningstar Corporation make any warranties explicit or implied with this product information. Morningstar makes no representation or assumption of liability regarding the charging requirements for any type of battery or model.