BigBattery ETHOS Bedienungsanleitung

48V ETHOS

USER MANUAL

VERSION HISTORY

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Edition

Date

Chapters

Reason for Change

12/13/2023

All

Manual development

Table of Contents

1. Deﬁnition of Terms.................................................................... 4

2. Safety Instructions.....................................................................5

3. Introduction................................................................................ 7

3.1 Product Description.............................................................7

3.2 Features & Applications...................................................... 8

4. Packed Components................................................................. 8

4.1 ETHOS Battery Module....................................................... 8

4.2 ETHOS Controller Box......................................................... 9

4.3 ETHOS Parallel Kit............................................................... 9

4.4 ETHOS Battery System..................................................... 10

5. Product Speciﬁcations............................................................ 11

5.1 ETHOS Overview................................................................11

5.2 ETHOS System Specs....................................................... 13

5.3 ETHOS Diagram.................................................................14

5.4 ID Addresses Description................................................. 15

5.5 Communication Ports Description...................................16

5.6 Battery LED Indicators...................................................... 16

6. Installation................................................................................17

6.1 Installation Safety Guidelines........................................... 17

6.2 Installation Requirements.................................................17

6.3 Ethos System Installation................................................. 18

6.3.1 Ethos System Mounting............................................ 18

6.3.2 Ethos System Connections....................................... 20

6.4 Ethos System Wiring Connection Diagrams....................23

6.4.1 10kWh System.......................................................... 23

6.4.2 15kWh System.......................................................... 24

6.4.3 20kWh System.......................................................... 25

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6.4.4 30kWh System.......................................................... 26

6.5 Installation with LUX 12K Hybrid Inverter........................ 27

7. Battery Commissioning.......................................................... 29

7.1 Screen Navigation and Protocol Selection...................... 29

7.2 Supported Inverters...........................................................32

8. Battery Operation Guide.......................................................... 32

8.1 Charging.............................................................................32

8.2 Discharging........................................................................33

8.3 State of Charge..................................................................33

8.4 Storage...............................................................................34

8.5 Extend the life of your Battery.......................................... 34

9. Service...................................................................................... 35

9.1 Troubleshooting................................................................ 35

9.2 Maintenance...................................................................... 36

9.3 Monitoring Software..........................................................37

10. Recycling................................................................................ 40

11. Warranty & Returns................................................................40

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1. Deﬁnition of Terms

●AWG – American Wire Gauge

●A — Amp(s)

●Ah — Amp hour(s)

●AC — Alternating Current

●Battery Module — Single battery

●Battery System — Two or more battery modules connected to a controller box

●BMS — Battery Management System

●Capacity — Measure of stored energy, typically in Ah or mAh

●Controller Box — Master BMS Unit

●Cell Balancing — Process of ensuring uniform charge among cells in a battery

●Cycle Life — Total charge-discharge cycles before capacity decline

●C-rating — Charging/discharging rate relative to battery capacity

●DC — Direct Current

●DOD – Depth of Discharge

●ESS – Energy Storage System

●kW — Kilowatt

●kWh — Kilowatt-hour

●LFP — Lithium Iron Phosphate or LiFePO4

●mm — Millimeter(s)

●mV — Millivolt(s)

●Overcharge — Charging beyond recommended voltage limits

●PPE — Personal Protective Equipment

●PV — Photovoltaic

●Self-Discharge — Natural battery discharge over time

●State of Charge (SOC) — Battery's remaining charge as a percentage

●State of Health (SOH) — Overall battery condition and performance

●Thermal Runaway — Dangerous overheating with potential battery damage

●V — Volt(s)

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2. Safety Instructions

Before you start working, make sure to read and follow all safety instructions for

handling the battery. When installing it, be sure to meet all the rules and regulations

in your area. Ask your local authority for the right permits and approvals before you

install it.

Lithium Iron Phosphate (LiFePO4) batteries are an inherently safe chemistry.

However, safety measures should always be taken as consideration before, during,

and after installation and during ongoing use and maintenance. The following safety

notices are crucial for both the installer and end users when operating this product

normally.

Improper installation could result in harm to the installer, the operator, or others, as

well as damage to the battery or connected equipment.

WARNING:

Do not make any connections or disconnections to the system when the batteries

are in operation. Working with active batteries can lead to system component

damage or pose a risk of electrical shock.

Do not charge with a charge voltage above 58.8V.

Do not charge nor discharge battery when ambient temperature is above 55 °C

(131 °F).

Do not install battery where it may contact conductive materials, water, seawater,

strong oxidizers, nor strong acids.

Do not install battery in a location exposed to direct sun, hot surfaces, nor hot

locations. Do not install batteries in a tight clearance compartment, overheating

may result.

Keep any ﬂammable/combustible material (e.g. paper, cloth, plastic, etc.) that may

be ignited by heat, sparks, ﬂames, or any other heat source at a minimum distance

of two feet away from the batteries.

Disconnect batteries immediately if, during operation or charging, they emit an

unusual smell, develop heat, or behave abnormally.

Have a Class ABC or Class BC ﬁre extinguisher on the premises.

Never short-circuit DC inputs: may result in a risk of electric shock or ﬁre.

Do not disassemble the battery: Contact BigBattery for proper handling

instructions. Incorrect servicing or re-assembly may result in a risk of electric

shock or ﬁre and voiding the warranty

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PRECAUTION:

Qualiﬁed personnel must handle all product work to reduce the risk of

electric shock.

Follow local and national electrical standards for installation and conﬁrm

utility provider and local authorities requirements before grid connection.

Maintain visibility of warning labels and nameplates.

Choose battery placement with future user safety in mind.

Keep children away from the battery and systems.

Use team lift technique due to battery weight.

Use batteries as directed; do not open or modify.

Avoid inserting foreign objects into battery terminals.

Handle batteries and/or battery-powered devices cautiously when using

metal tools or when around the system. Risk of electrical arcs or

short-circuits can cause serious harm, death, and equipment damage.

Do not charge battery if ambient temperature is below 0°C (32 °F), nor

discharge battery if ambient temperature is below -20 °C (-4 °F).

Beware of the battery current: Please ensure that the battery is “off” before

installing or working on the battery. Use a voltmeter to conﬁrm there is no

voltage present.

Always wear protective gear when handling batteries (PPE).

Handle batteries carefully to prevent damage; avoid pulling, dragging, or

mishandling.

Inspect batteries before use; don't use damaged or swollen ones; contact

BigBattery immediately.

Don't paint any part of the batteries, inside or out.

Make sure all cable connections are properly tightened and secured, and to

prevent any accident caused by improper installation.

Install and remove batteries using the handles provided.

Do not place any objects on top of batteries.

Before storing battery for more than 6 months, fully charge the battery and

disconnect batteries from your system.

Disclaimer:

BigBattery, Inc has the authority to modify the content here without prior notice.

To access the latest manual version, please visit our website at

www.bigbattery.com.

Need Further Assistance?

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3. Introduction

Introducing BigBattery’s ETHOS! These revolutionary stackable on-grid lithium

battery systems designed to push the boundaries of eﬃciency, ﬂexibility, and

reliability in energy management are the BEST Batteries Money can Buy. The Ethos

represents a leap forward in energy storage technology, offering a compact and

scalable solution for seamlessly integrating renewable energy sources into your

home or business. With its cutting-edge features and intelligent design, this

advanced lithium battery system promises to empower individuals and organizations

to take control of their energy usage like never before. Equipped with one of our

ETHOS battery systems from BigBattery, you’ll stay powered and prepared!

This User Manual is designed to provide you with an understanding of the specs,

features, capabilities, and installation of these batteries. Read and take note of all

safety information prior to installing or operating your battery. This document applies

to every ETHOS stackable battery system.

3.1 Product Description

The 48V 5kWh ETHOS stackable battery systems are ideal for low-voltage residential

(grid-tied homes), solar systems, off-grid power systems, emergency power supplies,

and more. Each single battery module is 51.2V 100Ah and it can be expanded from

5kWh up to 80 kWh per controller box. These batteries utilize lithium iron phosphate

(LiFePO4 or LFP) cells, renowned for their top-notch safety.

They are equipped with an intelligent Battery Management System (BMS) that

continuously monitors and records cell voltage, along with real-time data on current,

voltage, and temperature for the module. The BMS features a passive balance

function and an advanced battery control method, which collectively enhance battery

pack performance. Furthermore, the battery includes built-in ﬁre-extinguishing

modules for added safety. The battery utilizes a standard M8 bolt connection, which

easily and safely secures power to your battery unit. Designed to endure, the ETHOS

has a lifespan of over 10 years and is engineered to withstand more than 4000 -

8000 cycles at 80% Depth of Discharge (DOD) at a rate of 0.5C°.

You can always monitor your battery's health and performance from the LED

interface located on the controller box, which will display BMS status codes alerting

you to the condition of your battery.

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3.2 Features & Applications

Applications:

●Residential

●Commercial

●Grid-Tied Homes

●Cabin Off-Grid

●ESS

●Backup Power

Features:

●Advanced BMS (Battery

Management System)

●Lithium-Ion LiFePO4/LFP

Chemistry

●Easy connection to a larger

power system

●Expandable system with its

modular stackability

●Multiple layers of safety and

battery protection

●Built-in ﬁre suppression system

●Good insulation performance

●Utilizes standardized M8-bolt

connector for battery power

source.

●Smart Controller Box

●LED Smart Monitor Display

●Parallel Communication

●CAN bus and RS-485

communication with different

inverters.

●RJ-45 ports

●Hidden cables for better

presentation

4. Packed Components

4.1 ETHOS Battery Module

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4.2 ETHOS Controller Box

4.3 ETHOS Parallel Kit

The Ethos Parallel Kit allows the system to expand from 15kWh to 20kWh, 30kWh up

to 76.8kWh.

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