Freedom Won LiTE Home 10/8 User manual

Installation Manual
Freedom Lite Home and
Business
Range of Lithium Iron Phosphate Battery Modules
Manufactured By Freedom Won (Pty) Ltd
Kimbult Industrial Park, Unit C3 & C4
9 Zeiss Road
Laser Park, Honeydew
2040
South Africa
www.freedomwon.co.za
Technical and Installation Assistance – Contact:
Please contact your Freedom Won Distributor or Reseller Installer for technical and installation
support. A directory of Distributors and Reseller Installers is available at www.freedomwon.co.za.
For advanced support please contact [e-mail].
Update Record:
Revision
Number
Update Summary
Updated By
Date of Issue
12
Incorporated new model names and warranty
to reflect guaranteed performance at 80%
average DoD
Antony English
28 April 2020
13
Updated dimensions and weights of 5/4, 10/8,
15/12 and 20/16 models to new design.
Antony English
13 August 2020

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1. Introduction
This manual is intended to aid an installer with the installation and commissioning of the
range of Freedom Lite lithium iron phosphate (LiFePO4) energy storage modules. This
document is not intended to provide detailed information of the inner workings of Freedom
Lite that is not relevant to a person that is performing the installation and final
commissioning. Supplementary information relating to programming of the built-in battery
management system for specific applications is available to approved integrators directly
from Freedom Won.
This manual does not attempt to cover all the details pertaining to the setup of third-party
equipment in relation to the interface and necessary functionality to work with the Lite.
Freedom Won however is available at the contact details on page one to provide direct
support where necessary for supported inverter brands.
2. Product Description
The Freedom Lite technology is available in various standard sizes to meet all residential,
commercial and industrial applications, ranging in models from 5kWh up to 2500kWh.
Larger systems are provided by Freedom Won based on specific project requirements by
installing multiple units of the same model battery in parallel.
Freedom Won offers the following ranges in the LiFePO4 technology:
1. Lite 12V
2. Lite Home and Business
3. Lite HV Home and Business
4. Lite Marine
5. Lite Mobility (golf carts, forklifts etc)
6. Lite Commercial (including Lite Commercial HV and HV+)
7. Lite Industrial
This manual covers the standard voltage models of the Lite Home and Business range from
5kWh up to 80kWh. Please refer to the manuals specific to the other ranges.
The standard Lite voltage is 52V nominal (to suit 48V systems). The Freedom Lite HV range is
designed for specific Higher Voltage inverters such as those from Ingeteam (Ingecon 1Play
3TL and 6TL). The Lite Commercial range varies from 52V to 800V depending on customer
requirements (including the HV and HV+ models). The Industrial range varies from
approximately 500V to 800V depending on customer requirements.
The Lite Marine range of lithium batteries is available on request with similar specifications
to the Home range including 13V and 26V options to suit 12V and 24V systems respectively.
These models are water resistant (IP65) and designed for mounting on the floor or
horizontal deck and have dimensions that are different to the Lite Home models. For more
information on these models please contact Freedom Won.

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Table 2.1 provides an overview of the 52V Freedom Lite Home and Business range. There
are eight Freedom Lite models in the Home and Business range, as included in the table,
classified in terms of energy capacity.
An image with numbered labels pertaining to the following paragraphs is provided in Figure
2.1. The model number denotes with the first number [1] the total energy storage capacity
in kWh of each model. The second number [2] denotes the average amount of energy in
kWh that should be withdrawn per cycle (on average) in order to optimise the life of the
lithium cells. This equates to 80% of the total for each model i.e. 80% depth of discharge
(DoD). Note that all Freedom Lite batteries offer a maximum of 90% DoD as standard.
The range is very compact with the “Home” models up to the Lite Home 20/16 intended to
be wall mounted (floor mounting is also possible – all models are supplied standard with
plastic feet). The larger “Business” range is designed for floor standing with aluminium feet
with plastic pads on the underside.
The Ah capacity is also provided in the tables for each model for easy reference.
The maximum current for each model is governed by the rating of the built-in circuit breaker
[3], which has been sized below the maximum current capability of the lithium cells. There is
no noticeable cell temperature rise during operation and no active cooling of the cells is
required. The time limit for operation at the maximum current is 30 seconds in a 40 second
cycle. To ensure that the circuit breaker does not trip in normal operation it is advised that
the design of the system aims to remain at or below the continuous current value.
For the 52V models the absolute maximum allowable voltage when fully charged is 56V,
however a more typical inverter charge setting range is 55.5V to 55.8V, depending on the
inverter voltage tracking accuracy. The voltage normally used as the minimum cut off is 48V,
however this will not typically be reached when operating down to 90% Depth of Discharge
(DoD). The BMS will command the connected inverter with CAN Bus interface to stop
discharging the battery at 10% SoC (90% DoD), which roughly equates to 49,0V). Under high
load the voltage may drop to 48V whilst still above 10% SoC. A voltage of 48V or even lower
can be observed in systems without a CAN Bus interface or where the standby current draw
on the inverter has caused the battery to be discharged below 10% SoC. The battery breaker
will eventually trip the battery at around 47V to protect the cells from undervoltage.

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Figure 2.1 Labelled Image of the Freedom Lite Home 15/12 (Labelling corresponds with the
text)
1. Gross Capacity
2. 80% Capacity recommended for daily cycling (max available is 90%)
3. Breaker
4. Power Cables
[2]
[1]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[12]
[11]
[14]
[13]
[15]

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5. Location of DB15 Analogue and Relay Control Port on older models (note that from 9
September 2019 this port is no longer provided owing to migration of all interfacing
to CAN Bus)
6. CAN Bus Sockets x 2 (RJ45) (one socket must contain a termination resistor if end of
line)
7. USB Programming Port (not visible in photo). Note that in models manufactured prior
to May 2020 this port is a DB9 plug.
8. Reset Button (not visible in photo)
9. State of Charge Display
10. Error Lite
11. On Button
12. Off Button
13. Lifting Eye Bolt Hard Point (not visible in photo)
14. Safety Retaining Tab for Floor Mount Option (not visible in photo)
15. Feet
The weight of each model is given in the tables. The Freedom Lite Home 5/4, 10/8 and
15/12 models can be manually lifted by two people onto its hanging points. The larger units
may require lifting equipment of varying degrees for handling and installation as explained
later in this document.
The dimensions given are for the principle outlines of the aluminium housing and exclude
items that protrude such as the DC cable glands and the circuit breaker handle.
The DC cables exit the unit through glands located on the top right-hand side of the casing
and vary in number according to the model [2 in Figure 2.1]. The correct cable lugs for
connecting these leads to the inverter must be in hand when doing an installation. If there
are several inverters and charge controllers that need to be connected to the battery it is
advisable to install a DC connector box to use as a junction point from which to branch out
to all the battery connected equipment.