The Solar Step
MUST 3.6KVA MPPT Pure Sine Wave Hybrid Inverter + 2.56kWh ECCO 24V LiFePO4 Lithium Battery Combo
MUST 3.6KVA MPPT Pure Sine Wave Hybrid Inverter + 2.56kWh ECCO 24V LiFePO4 Lithium Battery Combo
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Must 3.6kW 100A 24V MPPT Solar Hybrid Inverter – PV1800 ECO
Reliable Off-Grid & Hybrid Power Solution
The Must PV1800 ECO 3.6kW Hybrid Inverter is a versatile, multi-function power system that integrates an inverter, MPPT solar charge controller, and battery charger into a compact unit. Designed for off-grid and hybrid applications, it ensures uninterrupted power supply by intelligently managing solar energy, AC utility, and battery storage.
With a high PV input voltage capacity (up to 400V/450V/500V), this inverter maximizes solar energy utilization and can even operate without a battery, making it a flexible and cost-effective energy solution.
Key Features:
- Pure Sine Wave Output: Delivers stable, high-quality power for sensitive electronics.
- Smart LCD Display: Allows easy configuration of working modes, charge current, and voltage settings.
- Built-in MPPT Solar Charge Controller: Maximizes solar power conversion efficiency.
- Wide PV Input Voltage Range: Supports higher solar voltage for increased flexibility.
- Battery-Free Operation: Can supply power to connected loads directly from solar panels.
- Smart Load Management: Dual output system for prioritizing critical loads.
- Advanced Protection: Overload, short circuit, and deep discharge protection.
- Cold Start Function: Allows startup without grid power.
- Remote Monitoring: Supports RS485 and CAN communication for lithium battery integration.
Technical Specifications:
Inverter Mode:
- Rated Power (Main + Second Load): 3600VA / 3600W
- DC Input Voltage: 24VDC, 135A
- AC Output Voltage: 230VAC, 50/60Hz, 15.7A
- Power Factor: 1.0
AC Charger Mode:
- AC Input Voltage: 230VAC, 50/60Hz, 17.7A
- DC Output Voltage: 24VDC, 60A
Solar Charger Mode:
- Maximum MPPT Charge Current: 100A
- MPPT Voltage Range (Typical): 30-320VDC
- Maximum PV Input Voltage (VOC): 400VDC
- Maximum PV Input Current: 18A
- Maximum MPPT Power: 4000W
- Maximum Charge Current: 100A
What’s in the Box:
- 1 × Must 3.6kW 24V MPPT Hybrid Inverter
- 1 × User Manual
This high-efficiency hybrid inverter is an ideal choice for those looking for a reliable, scalable, and smart solar power solution.
Ecco 25.6V 100Ah Lithium Iron Battery – High-Performance Energy Storage
Description:
Reliable Lithium Power for Solar & Backup Systems
The Ecco 25.6V 100Ah Lithium Iron Battery is a high-performance energy storage solution designed for solar power systems, UPS backup, and off-grid applications. Engineered as a superior replacement for traditional lead-acid batteries, this lightweight and long-lasting lithium battery delivers higher efficiency, faster charging, and extended cycle life.
ECCO 24V LITHIUM BATTERY
Key Features:
- 25.6V 100Ah Capacity – Stores 2560Wh of energy for backup and solar applications.
- Lithium Iron Phosphate (LiFePO4) Technology – Offers enhanced safety, longevity, and efficiency.
- Up to 4X Longer Lifespan – Outperforms lead-acid batteries in durability and cycle life.
- High Charge & Discharge Rates – Supports 100A max charge/discharge for efficient power management.
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Wide Application Compatibility:
- Solar & Backup Systems – Ensures reliable power storage.
- UPS & Inverters – Provides uninterrupted energy supply.
- Portable Power Solutions – Ideal for off-grid, RV, marine, and camping use.
- Fast Charging & High Efficiency – Reduces downtime with quick recharge capabilities.
- Compact & Lightweight Design – Easier to install and transport compared to traditional lead-acid alternatives.
- Maintenance-Free & Environmentally Friendly – No harmful chemicals or frequent maintenance required.
Technical Specifications:
- Energy Storage Capacity: 2560Wh
- Nominal Voltage: 25.6VDC
- Rated Capacity: 100Ah
- Bulk Absorption Voltage: 28.4V - 29.2V
- Equalize Voltage: 28.8VDC
- Float Charge Voltage: 27.2VDC
- Maximum Charge Current: 100A
- Maximum Discharge Current: 100A
Installation & Usage:
- Connect positive and negative ports to an inverter or UPS system for charging and discharging.
- Suitable for both solar-powered and traditional charging systems.
What's Included:
- 1 × Ecco LIFeLi-24100T Lithium Iron Battery
Warranty & Installation Requirements:
- 5-Year Battery warranty with long-term reliability.
- 1 Year Inverter warranty
- Professional installation recommended for optimal safety and performance.
Let customers speak for us
from 103 reviewsSystem works very well, happy with purchase.

Very impressive store. Friendly service. Ruan is an excellent salesman and very professional.
We bought the 11kva system last week. Customer service is excellent, delivery excellence, installed and working like 4 paired horses bulling a wagon. We're thrilled and keep up the great work guys.
A big thank you to The Solar Step team for the excellent service, I am very happy with my product!
This place has amazing service the staff are so friendly and fast to help i would highly recommend
This place has amazing service the staff are so friendly and fast to help i would highly recommend
Great products that saves you money and preserve energy.
Great products that saves you money and preserve energy.
Friendly, helpful, great customer service.
The staff was very helpful and they were quick to respond to my messages aswell as give me the best system that fits into my budget and that is also in great quility
Outstanding Service!
I had an amazing experience with this company! From start to finish, their team was professional, knowledgeable, and efficient.
Good service, frienfly assistance, great products. Just overall amazing
A chap named Ruan assisted me with a few items I need. He was very helpful and knowledgeable. Will highly recommend The solar step and Ruan. Keep up the good work
This place has the best service, the staff are so friendly and helpful would recommend

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