Freedom Lite Home Series 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 support@freedomwon.co.za.
Update Record:
Rev
is
ion
Number
Upd
ate Summary
Updated
By
Date
of Issue
12
I
ncorporated
new model names and warranty
to reflect guaranteed performance at 80%
average DoD
Antony
English
28 April 2020
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1. Introduction
This manual is intended to provide assistance to an installer for 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 third party 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 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 designed with a tall and slim profile with the “Home” models intended to be
wall mounted (floor mounting is also possible – all models are supplied standard with plastic
feet). The larger “Business” range is 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 5 minutes in a 30 minute
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 in preventing a voltage overshoot above 56V. The voltage
normally used as the minimum cut off is 48V, however this will not typically be reached if
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. DB9 Programming Port (not visible in photo)
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 and 10/8
models can be manually lifted by two people onto its hanging points. The larger units
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.
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Table 2.1 Freedom Lite Range Overview
Freedom Lite Home
5/4
Home
10/8
Home
15/12
Home
20/16
Home
30/24
Business
40/32
Business
60/48
Business
80/64
Total Energy Capacity
[kWh] 5 10 15 20 30 40 60 80
Energy, 80% DoD [kWh]
(1) 4 8 12 16 24 32 48 64
Energy, 90% DoD [kWh] 4,5 9 13,5 18 27 36 54 72
Current Capacity [Ah] 100 200 300 400 600 800 1200 1600
Max & Cont. Charge
Current [A] (2) 100 200 300 400 600 600 800 800
Max & Cont. Charge
Power [kW] (2) 5 10 15 20 30 30 40 40
Max/Cont. Discharge
Current [A] (2) 300/240 300/240 480/400 480/400 750/600 750/600 1000/800 1000/800
Max/Cont. Discharge
Power [kW] (2) 15/12 15/12 24/20 24/20 38/30 38/30 50/40 50/40
Max Recommended
Inverter Total Rated
Power (cont.) [kVA]
10 10 15 15 25 25 35 35
Nominal Voltage [V] 52V, to suit 48V Inverters, min 47V, max 56V
Weight [kg] 60 108 158 211 310 412 613 811
Dimensions on or against
wall - Height x Width x
Depth [mm]
500x
340x290
745x
340x290
976x
540x265
976x
708x265
1540x
455x370
1895x
584x310
1895x
859x310
1895x
1142x310
Enclosure Aluminium – powder coated white front, rated for indoor use
DC Connection -
Integrated Cables, [no.
per electrode] (3)
1x 50mm2 1 x 50mm2 2 x 50mm2 2 x 50mm2 2 x 95mm2 2 x 95mm2 2 x 95mm2 2 x 95mm2
Control Interface RJ45 Socket x 2 – CAN Bus for Interfacing with Compatible Inverters and System Controllers, connection of
parallel batteries.
Protection Shunt Trip Circuit Breaker sized to suit max current, can be tripped by BMS if critical fault, manual reset. Includes
overcurrent, cell under and over voltage, temperature, weak cell detection, minimum SOC control
Human Interface State of Charge Display (0 to 100%), Error light, Error Reset Button, Serial RS232 Plug for Programming (note the
Lite 80/56 has a CAN port for programming and not a serial port), WiFi remote monitoring (optional accessory)
Warranty [4] 10 years or 4 000 cycles for average 80% DoD, and max 90% DoD
Service Life [4] >16 years (>5 500 cycles) expected life at 80% DoD (1), >20 years (>7 500 cycles) at 50% DoD
Essential Accessories
Note that for connecting the battery to a PC a special adapter is required:
Lite 5/4 up to Lite 60/42 - Serial RS232 to USB adapter (must be the brand supplied by Freedom Won)
Lite 80/56 - CANdapter (available from Freedom Won) (supplied with battery)
CAN Bus Termination Resistor – one required per battery, available from Freedom Won (not included with
battery)
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Notes to Table 2.1
1) DoD = Depth of Discharge, recommended 80% DoD for average daily discharge, 70% DoD on average for optimal life –
max for normal operation 90% DoD, max for system in standby 100% DoD.
2) Max load duration – 5 minutes per 30 minute cycle. 2 x Max overload can be handled for 2 seconds.
3) Fly Leads 1,8m long, power cable Red = Positive, Black = Negative, conductors in table refer to one electrode i.e. per
positive and negative connections
4) End of Life (EoL) defined as cell dropping to 60% of Beginning of Life (BoL) capacity for expected life and 70% of BoL
capacity for warranty. This warranty applies to Lites sold after 1 September 2019. For Lites sold prior please contact
Freedom Won for warranty information.
Two RJ45 sockets [6] are provided, one for connecting the CAN interface from the battery to
the system controller or directly to the inverter depending on the brand, and another for
connecting the battery to another battery or for a termination resistor (more detail later in
manual).
A DB9 Serial Connector [7 - concealed] is fitted to the upper left-hand side of the housing for
use by technicians for programming the required profile onto the BMS or updating
firmware. The required profile is typically loaded by Freedom Won prior to delivery but
installers are advised to obtain the correct adapter to allow Freedom Won or the distributor
to program batteries remotely on behalf of the installer via the installer’s Windows laptop if
necessary. Note the correct adapters as below:
For models up to and including the Lite Business 60/42 a DB9 RS232 to USB adapter
cable (Figure 2.2) is required. The DB9 plug must have the male pins and is supplied
by Freedom Won with each battery (note that only the Mecer brand supplied by
Freedom Won is guaranteed to work).
For the Lite Business 80/56 a CANdapter is required (Figure 2.3). This is available
from Freedom Won.
An error reset button [8 - concealed] is positioned adjacent to the DB9 plug.
Freedom Lite is also fitted with a State of Charge (SoC) display [9], which includes a red LED
error indicator [10] and below it a “low power” indicator.
Figure 2.2 RS232 DB9 (male) to USB Adapter for Programming Freedom Lite up to 60/42
model
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Figure 2.3 CANdapter for Programming Freedom Lite Business 80/56 model
The ON button [11] and OFF button [12] are located beside the SoC display.
The Lite Home range can be wall mounted, but if a sturdy wall is not available floor
mounting is an option. The Lite is supplied with a securing tab at the top in the middle as
part of the rear cover to secure the battery against the wall to prevent it from tipping over
[13]. Note: this tab must not be used to support the weight of the Lite, only to ensure it
does not topple over when mounted on the floor. This tab is not suitable for securing the
Lite in a moving vehicle where vibration could occur.
All Lite’s have feet as standard, whether needed or not [15].
A hard point is supplied on the top for the 15/12 and 20/16 models [14] for inserting an eye
bolt that can be used for hoisting the battery onto the wall mountings. The Lite 30/21 and
above are supplied with permanently installed eye bolt(s).
3. Transport, Handling and Mounting
The Freedom Lite units are packaged in protective layering and fastened into a wooden
crate with pallet type feet, which allow lifting with a forklift or a pallet jack. The Freedom
Lite Home 5/4 and 10/7 models are easily handled by two people. The 15/11 and 20/14
models may be manually handled by four or six people but are best handled by a pallet jack
or forklift. The 30/21, 40/28, 60/42 and 80/56 models must be handled with care by a
forklift or pallet jack of the required lifting capacity rating.
If it is necessary to transport the larger units (typically 40/28 and larger) up or down
multiple stairs in order to get them to the point of installation in the premises it may be
preferable to deliver the unit with the lithium cells separate and then Freedom Won will fit
them into the unit on site. This must be arranged with Freedom Won at the time of order
placement and will attract a nominal fee for labour plus transport and accommodation
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where applicable. This service is not available in all countries. Please enquire with Freedom
Won Sales.
The “Home” series is designed for wall mounting in order to preserve room and floor space
and offer a convenient obstruction free and aesthetically pleasing solution. Each model is
fitted to the wall using two Rawl Bolts. The Rawl Bolts are inserted into correct diameter pre
drilled holes in the wall. The bolts must first be tightened substantially so that the internals
of the Rawl Bolt have gripped tightly into the wall, and then the bolt must be turned out
slightly with the head protruding so that about 5mm of the bolt shank is visible. This pre-
tightening prevents the bolt from being pushed into the wall when mounting the Lite. The
Freedom Lite has two keyhole shaped holes on the back, which are shaped to fit over the
bolt heads and then a narrowed section secures around the bolt shank as the unit is lowered
into its final position. The 5/4, 10/7 and 15/11 models are hung using M8 bolts whilst the
20/14 and 30/21 models are hung on M10 bolts. The centre to centre spacing of these bolts
must be applicable to the model being installed. It is critical that these bolts are mounted
within 1mm of the correct dimension and must be perfectly level.
Figure 3.1 Bolt Mounting Keyhole on Rear of Lite Casing – floor mount retaining tab and
fitted eye bolt also visible
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Eye bolts fixed to the top of the battery can be used for hoisting the unit up to the required
height for fitting to the wall (excluding 5/4 and 10/8, which can be lifted manually). The eye
bolt(s) on the models up to the Lite 20/14 can be removed after installation. Ensure that you
have one M12 x 1,75 thread eye bolt rated for 450kg or more for the models that are not
supplied with permanently fixed eye bolts.
Lifting the batteries by the eye bolts should be performed using a mobile gantry crane or a
high lift pallet jack.
Figure 3.2 Eye bolt Example
Figure 3.3 Eye bolt Installation on a Lite 15/12 model (remove after installation)
This manual suits for next models
9
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