The Solar Step
3.5KVA Ecco 24V MPPT Hybrid Inverter + 2.56kWh TOPSUN Lithium (Low-Voltage) Battery Combo
3.5KVA Ecco 24V MPPT Hybrid Inverter + 2.56kWh TOPSUN Lithium (Low-Voltage) Battery Combo
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Product Description
This compact 24V solar and backup combo combines the Ecco ES3500 3.5kW Hybrid Inverter with a TOPSUN LVTS-256100 2.56kWh LiFePO₄ battery.
The package is designed for smaller homes, apartments, offices and essential-load backup systems requiring reliable lithium storage with the option to add solar panels.
The Ecco inverter provides 3,500W of rated output and supports up to 4,000W of PV input, while the TOPSUN battery provides 2.56kWh of nominal storage at 25.6V.
Combo Includes
1 × Ecco ES3500 3.5kW Hybrid Inverter
1 × TOPSUN LVTS-256100 2.56kWh Lithium Battery
Ecco Hybrid Inverter
Key Features
3,500VA / 3,500W rated output
24V battery system
230V AC input and output
Maximum PV array power: 4,000W
Maximum PV open-circuit voltage: 500V DC
Minimum solar input voltage: 30V DC
Maximum MPPT charging current: 100A
Maximum AC charging current: 60A
Maximum combined AC + PV charging current: 100A
Suitable for compatible solar and backup systems
Inverter Specifications
Model: Ecco ES3500
Rated power: 3,500VA / 3,500W
Nominal battery voltage: 24V
AC input: 230VAC, 50/60Hz
AC output: 230VAC
Maximum AC charge current: 60A
Maximum combined charging current: 100A
Maximum PV array power: 4,000W
Minimum PV voltage: 30V DC
Maximum PV open-circuit voltage: 500V DC
Maximum MPPT charging current: 100A
TOPSUN 2.56kWh Lithium Battery
The TOPSUN LVTS-256100 is a 25.6V 100Ah LiFePO₄ battery designed for compatible 24V backup, solar and off-grid installations.
Its compact low-voltage design provides reliable lithium energy storage with an integrated Battery Management System for everyday system protection.
Battery Features
2.56kWh nominal energy
100Ah capacity
25.6V nominal voltage
LiFePO₄ battery chemistry
50A charge current
100A discharge current
Intelligent BMS protection
IP20 protection rating
Suitable for compatible 24V inverter systems
Battery Specifications
Brand: TOPSUN / LVTOPSUN
Model: LVTS-256100
Battery chemistry: LiFePO₄
Nominal energy: 2.56kWh
Rated capacity: 100Ah
Nominal voltage: 25.6V
Operating voltage: 22.8V to 28.8V DC
Charge current: 50A
Discharge current: 100A
Charging temperature: 0°C to 45°C
Discharging temperature: -20°C to 60°C
Protection rating: IP20
Protective class: Class I
Important Charging Configuration
The Ecco ES3500 can provide charging currents higher than the TOPSUN battery's stated 50A charge-current rating.
The inverter's battery charging current should therefore be configured within the battery manufacturer's approved limit. Do not simply set the inverter to its maximum 60A AC or 100A combined charging capability unless TOPSUN confirms that the battery supports it.
Recommended Applications
This combo is suitable for:
Small home backup systems
Apartments
Home offices
Wi-Fi and entertainment backup
Lighting
Computers and laptops
Refrigeration
Selected essential plug circuits
Small solar installations
Compatible off-grid systems
Actual backup runtime depends on the connected load, battery state of charge and available solar power.
Solar Expansion
The Ecco ES3500 supports up to 4,000W of PV array power.
Solar panels are not included unless specifically stated in the product offer.
The final panel configuration must remain within the inverter's permitted:
PV power
PV voltage
MPPT voltage
Input current limits
Solar string design should be completed by a qualified installer.
Installation Requirements
The system should be installed and configured by a qualified electrical professional.
Installation should comply with:
SANS 10142 and applicable requirements
Correct AC and DC protection
Correct battery charging settings
Suitable cable sizing
Manufacturer installation requirements
Valid Certificate of Compliance where required
Warranty
Battery warranty: 1 year
Inverter warranty: 5-year repair warranty
Warranty and Installation Requirements
All inverters and batteries must be installed by a qualified electrical wireman or Master electrician with a valid registration with the Department of Labour
A valid electrical certificate of compliance (COC) must be issued once installed, specific to the installation of the backup or solar system
The installation must be compliant with SANS 10142 and all its parts
Any warranty claim submitted without installation photos, a valid COC and proof of a qualified wireman or master electrician installing the unit, can be rejected and will render the warranty claim null and void
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