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By Sona Brands

On 29, 2025

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Black Friday Combo Deal: Must Inverter + Beesman Battery — Power Your Home for Less!

Name: 3.2KW Must PV1800 VPM & 2.7kWh Beesman LiFePO4 Solar Combo
Brand: Sona Solar Zimbabwe
Price: 1000.00 USD
Availability: InStock

Unlock energy independence with this expertly curated solar package from Sona Solar Zimbabwe. Featuring the powerful 3.2KW Must PV1800 VPM Inverter, a high-performance 2.7kWh Beesman LiFePO4 Battery, and efficient Longi Solar Panels, this all-inclusive deal provides everything you need for a reliable and professional installation.

Must 3.2kW Inverter + Beesman 2.7kWh Battery

A Fully-Costed Power Solution

Total Investment: $1,000.00

For a total of $1,000.00, this package includes all core components, mounting hardware, safety devices, and the complete labour for installation and commissioning. It represents a transparent, value-driven investment into a sustainable energy future for your home.

This is a complete walk-in, walk-out price for a professional solar installation.

Black Friday Deals at Sona Solar Zimbabwe

Deal Overview

Unlock massive savings this Black Friday with the Must & Beesman Combo Deal from Sona Solar Zimbabwe. Get a complete, ready-to-install home power package for only $1,000.00.

Inverter: Must PV18-3224 VPM II — 3.2kW, 24V DC, 120A max combined charging current.
Battery: Beesman LiFePO₄ — 2.7kWh, 25.6V nominal voltage with intelligent BMS.
Solar Panels: Longi high-efficiency modules for consistent power generation.
Installation: Professional setup, configuration, and commissioning by Sona Solar experts.

Limited-time offer — valid through Black Friday week only!

Technical Compatibility & Setup

The Must 3.2kW inverter and Beesman 2.7kWh battery can be connected physically, but manual configuration is required for optimal performance and safe operation. These devices do not support automatic communication via CAN or RS485.

Key Must Inverter Specifications:

Model: Must PV18-3224 VPM II
System Voltage: 24V DC
Rated Power: 3.2kW / 3200W
Maximum Charge Current: 120A (AC + Solar combined)

Beesman Battery Specifications:

Nominal Voltage: 25.6V (LiFePO₄)
Capacity: 2.7kWh
Recommended Charge Voltage: 28.4V (Bulk/Absorb)
Float Voltage: 27V
Discharge Cutoff: 21–22V

Manual Configuration Guide

Follow these steps to configure your Must inverter for use with the Beesman battery:

On the inverter’s LCD, navigate to Setting Mode → Battery Type → select “USER” or “Li”.
Set Bulk/Absorb Voltage to 28.4V.
Set Float Voltage to 27V.
Adjust Low DC Cutoff to 21–22V to protect against deep discharge.
Limit Max Charge Current to the Beesman’s recommended level (typically 50–60A).
Save and reboot the inverter to apply new settings.

Tip: Use correctly sized cables (minimum 25mm² for short runs) to prevent voltage drop and overheating.

System Performance & Expansion

While the Beesman 2.7kWh battery works with the Must inverter, its capacity may be modest for extended usage. You can:

Expand capacity by connecting additional Beesman batteries in parallel (same voltage and state of charge).
Manage loads by keeping continuous usage below 80% of the inverter’s capacity (≈2560W).
Monitor performance via the inverter’s LCD display for daily and total energy production.

This configuration ensures both safety and durability — ideal for homes and small businesses seeking energy independence.

Important Notes & Limited Offer

Note: These units do not auto-sync or exchange data. Manual configuration is required for optimal results. The Beesman’s integrated BMS safeguards your system by preventing overcharge, short-circuit, and over-discharge conditions.

⚡ Black Friday Offer: Available only during the promotion week — includes free professional installation within Harare and discounted hardware rates nationwide.

Reserve your system early through Sona Solar Zimbabwe to secure your slot before the festive installation rush.

Core Components & Specifications

Key System Components

3.2KW Must Hybrid Inverter (PV1800 VPM)

The heart of your system, with a 60A MPPT controller and pure sine wave output for clean, efficient power.

2.7kWh Beesman LiFePO4 Battery

A modern, long-lasting 25.6V, 106Ah energy storage solution, ensuring you have reliable power day and night.

3 x Longi 440W Solar Panels

High-efficiency panels to maximize energy generation, providing a total of 1.32kW of solar power.

Detailed Technical Specifications

Must 3.2KW Inverter Specs

Rated Output Power	3200W
DC System Voltage	24V
MPPT Charge Controller	60A
MPPT Voltage Range	60 - 160VDC
Max PV Input Voltage	160VDC
Output Waveform	Pure Sine Wave

Beesman 2.7kWh Battery Specs

Model	EA40A-2.7K-B
Rated Energy	2.71kWh
Nominal Voltage	25.6V
Rated Capacity	106Ah
Rated Charge/Discharge Current	20A
Max Charge/Discharge Voltage	29.2V / 20.8V
Allowable Connection in Parallel	4 Units

System Capabilities & Guidance

What Can It Power?

This system is ideal for powering essential household and business items. Runtimes are estimates and vary based on usage.

Appliance	Estimated Runtime
LED Lights (15-20)	24+ hours
Smart TV (50")	12-14 hours
Fridge (Single Door)	10-12 hours
Laptops & WiFi	12-15 hours
Small Borehole Pump (e.g., 1HP)	1.5-2 hours

Ideal Application Areas

Homes: Powering lights, TVs, fridges, fans, and routers.
Shops & Small Businesses: Ideal for POS systems, lighting, and CCTV.
Off-grid Cabins & Rural Homes: Reliable power where the grid is unstable.
Farms & Agriculture: Powering electric fencing and small pumps.

Peace of Mind & Warranty

Guarantees & Installation Terms

Sona Solar Zimbabwe stands behind its products and workmanship, offering comprehensive warranties for your peace of mind.

Warranty Type	Duration
Installation Warranty	1 Year
Manufacturer's Warranty (Inverter & Battery)	5 Years
Solar Panel Warranty	25 Years

Please Note: All electrical products must be installed by a professional and suitably qualified person in accordance with ZERA regulations to ensure your warranty remains valid. The warranty does not cover damage from improper use, physical abuse, non-accredited installation, or force majeure events like lightning strikes.

Frequently Asked Questions
Must 3.2kW Inverter & Beesman 2.7kWh Battery

Will the Must inverter automatically recognize and communicate with the Beesman battery?

No, automatic communication between these two brands is unlikely. The Must inverter’s closed-loop BMS compatibility typically supports select manufacturers only. You must use manual configuration for this setup.

How do I manually configure the Must inverter for the Beesman battery?

Access the inverter’s LCD menu and manually enter the correct battery parameters from the Beesman datasheet:

Battery Type: Set to "USER" or "Li" (not AGM or FLd).
Bulk/Absorb Voltage: Charging voltage for the main charge cycle.
Float Voltage: Voltage for maintaining a full charge.
Max Charge Current: Limit this to the Beesman battery’s safe maximum, not the inverter’s default (which can be 120A).
Low DC Cut-off Voltage: Set the minimum discharge voltage to protect the battery.

Is the Beesman 2.7kWh battery large enough for the Must 3.2kW inverter?

The Beesman 2.7kWh battery can power the inverter but will discharge quickly under heavy load. Running the inverter at full capacity (3.2kW) would deplete the battery in under an hour. It’s best suited for moderate loads or to be paired with additional batteries.

What is the recommended load size to avoid overloading the system?

Keep your continuous power draw below 80% of the inverter’s rated output — about 2,560W. This helps avoid overheating, ensures stable performance, and extends inverter lifespan.

Can I connect more than one Beesman battery to the system?

Yes, you can connect multiple Beesman batteries in parallel to increase total capacity, as long as all units share the same voltage (24V). Make sure they have similar charge levels before connecting.

My Must inverter isn’t charging the battery. What should I check?

Configuration: Ensure “User” battery mode is selected and voltage parameters match the Beesman specs.
Cabling: Confirm correct polarity and secure connections.
Over-voltage lockout: The inverter might block charging if it detects high voltage — perform a reset if needed.
Breakers: Check both inverter and external DC breakers for tripping.

The inverter shows a low battery warning, but my battery is full. Why?

This usually indicates voltage drop or a premature BMS cutoff:

Cable Gauge: Thin cables can cause voltage drop under load — use correctly sized wires.
BMS Cutoff: The battery’s BMS may be shutting down to protect the cells, which cuts power abruptly and triggers a low-voltage alarm.

How do I resolve a communication error between the inverter and the battery?

Since Must and Beesman are unlikely to communicate directly via CAN or RS485, ignore communication errors. To fix issues:

Ensure inverter communication mode isn’t set to “BMS”.
Disconnect any communication cable causing false errors.
Recheck all manual configuration settings.
If errors persist, contact your supplier for firmware updates or diagnostic support.

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Pricing AND Availability Notice

Flexible Pricing:

Our Solar System Prices are regularly updated to reflect the best possible value amid fluctuating import costs and exchange rates. Contact us today for our latest discounted rates!

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Sona Solar Zimbabwe – Your Trusted Partner for Solar Energy Solutions

Sona Solar Zimbabwe provides premium Solar Panels, Lithium Batteries, Inverters, and complete Solar Systems for homes, businesses, and industries. We also specialize in expert Borehole Drilling Solutions and Solar-Powered Water Systems. Trust our experienced team for professional Solar installations in Harare, Marondera, Mutare, Chitungwiza, and across Zimbabwe, delivering reliable, efficient, and cost-effective renewable energy solutions.