Game changing Lithium Iron Phosphate (LiFeP04) energy storage technology since 2010

The Freedom Won eTower modular stackable battery is designed for smaller 52V solar integrated and backup applications (General UPS, residential, telecoms, server rooms, etc).

Price

$1296

Available now in Tanzania & Kenya

eTOWER MODULAR STACKABLE SOLAR BATTERY

Stack up your power, one power at a time! Grow your size solution from 5kWh to 30kWh

Our eTower Stackable Solar Battery offers a flexible and scalable solution to meet your unique power requirements. Seamlessly increase your storage capacity by adding units as needed.

5kWh

This is perfect for small homes and backup power needs.

10kWh

This is very ideal for larger homes and small businesses.

15kWh

Suitable for medium to large homes with higher energy demands.

20kWh

Great for commercial applications and larger residential properties.

25kWh

Optimal for larger commercial setups and extensive energy storage.

30kWh

Maximum storage capacity for high-demand scenarios & large-scale applications.

OR call us now: +255 677 061 468 / +254 711 194 637

Pair the Freedom won eTower modular stackable solar battery with the Encore inverter range.

The most flexible energy storage solution within the Freedom Won offering!

Our Freedom Won energy storage solution is designed to adapt to your specific power needs, ensuring efficient and reliable energy management for your home or business.

1C current output when charging and discharging

Running Temperature between -20°C and 40°C

Grow the size of your solution from 5kWh to 30kWH

10 years limited Warranty 4000 cycles at 80% Depth of Discharge

60% retained as new capacity once warranty ends

3 inverter cables included for easy setup

OR call us now: +255 677 061 468 / +254 711 194 637

Types of mounting

Our eTower system offers flexible installation options to suit your space and design preferences, ensuring ease of access and optimal performance.

Wall mounting

Rack mounting

eTower Specifications

Explore the detailed specifications of our eTower stackable solar battery solutions. Designed for flexibility and performance, these specifications help you find the right fit for your energy needs.

        
            
                    
                    1 x e5000
                    2 x e5000
                    3 x e5000
                    4 x e5000
                    5 x e5000
                    6 x e5000
                

            
                    Total Energy Capacity [kWh]
                    5
                    10
                    15
                    20
                    25
                    30
                

                    Energy, 80% DoD [kWh]
                    4
                    8
                    12
                    16
                    20
                    24
                

                    Current capacity
                    100
                    200
                    300
                    400
                    500
                    600
                

                    Max/Cont. Charge Current [A]
                    80/70
                    144/126
                    216/189
                    288/252
                    360/315
                    432/378
                

                    Max Recommended Inverter Total Rated Power (cont.) [kVA]
                    5
                    10
                    15
                    20
                    25
                    30
                

                    Nominal Voltage [V]
                    
                        52V, to suit 48V Inverters, min 47V, max 56V
*Do not connect modules in series (for high voltage batteries, refer to Freedom Won LiTE HV ranges).
                    
                

                    Communication and Control Interfaces
                    
                        CAN Bus (RJ45 Socket x 1) – for interfacing with compatible inverters and system controllers.

                        RS485 (RJ45 Socket x 1) – for interfacing with Voltronics Axpert range of inverters equipped with a lithium battery interface.

                        RS232 (RJ45 Socket x 1) – for interfacing with a PC for firmware and setting updates.

                        RS485 (RJ45 x 2) – for the communication connection of parallel batteries up to four in tower.

                        Digital Outputs x 2 – for controlling external relays based on pre-set functions.
                    
                

        
    

	1 x e5000	2 x e5000	3 x e5000	4 x e5000	5 x e5000	6 x e5000
Total Energy Capacity [kWh]	5	10	15	20	25	30
Energy, 80% DoD [kWh]	4	8	12	16	20	24
Current capacity	100	200	300	400	500	600
Max/Cont. Charge Current [A]	80/70	144/126	216/189	288/252	360/315	432/378
Max Recommended Inverter Total Rated Power (cont.) [kVA]	5	10	15	20	25	30
Nominal Voltage [V]	52V, to suit 48V Inverters, min 47V, max 56V *Do not connect modules in series (for high voltage batteries, refer to Freedom Won LiTE HV ranges).
Communication and Control Interfaces	CAN Bus (RJ45 Socket x 1) – for interfacing with compatible inverters and system controllers. RS485 (RJ45 Socket x 1) – for interfacing with Voltronics Axpert range of inverters equipped with a lithium battery interface. RS232 (RJ45 Socket x 1) – for interfacing with a PC for firmware and setting updates. RS485 (RJ45 x 2) – for the communication connection of parallel batteries up to four in tower. Digital Outputs x 2 – for controlling external relays based on pre-set functions.

Download Datasheet

eTower Installation Examples

Our eTower installations showcase the versatility and efficiency of our stackable solar battery solution. Explore the various ways our clients have implemented eTower in their energy systems.

eTower Inverter Compatibility

FAQs

Get answers to common questions about the Freedom Won eTower, including installation, compatibility, and maintenance tips.

1. Can I configure an eTower and a Freedom Won LITE batteries in parallel?

No. the two do not use the same BMS.

2. What are the CANBUS communication pinouts for the Freedom Won LITE and eTower?

PIN 7 and 8 as CAN High and CAN Low respectively on the LITE units
PIN 4 and 5 as CAN High and CAN Low respectively on the eTower

3. How often do I need to charge my battery to 100% SOC, 55.8V?

At least once a week to allow the cells to balance accordingly.

4. Where can I buy the E-Tower RS232 cable used to access the BMS and what is the process?

The client must crimp his cable with pin layout:
eTower cable RS232
RJ 11
DB9
Pin 2- Red
Pin 2- Red
Pin 3- Green
Pin 3-Green
Pin 4 -Yellow
Pin 5-Yellow

5. What are the Freedom Won cell voltage settings if the inverter requires cell voltage settings?

Freedom Won batteries are often used in various configurations and might have different settings depending on the specific model and the inverter brand you are using. However, general guidelines for cell voltage settings in Freedom Won batteries are as follows:
Cell Float Voltage = 3.5 Volts
Cell Bulk Voltage = 3.5 Volts
Cell Cut-off Voltage = 2.9 Volts

6. Do Freedom Won batteries have alarms?

The eTower has alarms, not the LITE range batteries.