What precautions should I take before installing/adding Stackable Micro Battery?

When installing/adding expansion batteries, it is necessary to power off and shut down the system to protect yourself and the machine. Performing this operation while powered on is not covered under warranty. Please follow the steps below for proper installation: a. Disconnect the Micro Storage Unit and the solar panels. b. Press the on/off button for 2 seconds to turn off the power. c. After turning off the Micro Storage Unit, install the expansion batteries to the Micro Storage Unit. d. Connect solar panels for normal use.

Are there any other precautions that need to be taken when installing and using the product?

Ensure that the AC outlet is properly grounded.

Can I change the battery to the Micro Storage Battery or Stackable Micro Battery by myself?

No. If your battery in Micro Storage Unit or Stackable Micro Battery does not work or working conditions do not meet expectations, please contact the TSUN customer service team for further help.

How to make sure the equipment is safely grounded?

The included AC end cable already ensures that the machine is safely grounded, so there's no need to worry.

Are microinverters required to use Micro Storage Unit?

Micro Storage Unit does not require a microinverter. A microinverter is already incorporated into its all-in-one design that also includes a photovoltaic controller and energy storage battery pack.

Can the Micro Storage Unit charge batteries using the household power grid?

Yes, the Micro Storage Unit can charge your batteries using your home's AC power. It can be scheduled to do so during off-peak hours to reduce costs, and will also automatically charge AC power when the batteries are low and there is insufficient solar power, preventing battery damage and ensuring that you have some reserve energy available.

How do I use Micro Storage Unit to achieve zero-power function?

You need to buy our optional accessory smart meter, which prevents energy back-flow to the public grid by adjusting the output power of the Micro Storage Unit, matching household load in real-time. This achieves the purpose of not transmitting energy to the public grid, which is the anti-back-flow function.

How does the smart meter help Micro Storage Unit achieve zero energy waste?

The smart meter detects the total household electricity consumption, which lets Micro Storage Unit continually adjust output power. It's real-time and precise electrical discharge for your home, helping you achieve efficient energy use without waste.

PowerTrunk (Micro AC Coupled Unit)

MAU5000 | 2.5 kW / 5 kWh

The MAU5000 is a premier AC-coupled energy storage system designed to effortlessly upgrade existing grid-tied PV setups or power new solar installations in seamless combination with microinverters. It empowers homeowners to maximize energy efficiency and reduce electricity bills through intelligent self-consumption, Time-of-Use (TOU) shifting, and dynamic tariff response, ensuring every kilowatt-hour is used when it’s most cost-effective.
Built for flexibility and reliability, multiple units can operate in parallel to easily scale capacity for larger single-phase or three-phase applications. The system features a grid-forming off-grid port that creates a robust backup power supply, working seamlessly with both microinverters and string inverters to provide ultimate energy independence and flexibility in any scenario.

DATASHEET

Products Storage System Micro Storage System PowerTrunk (Micro AC Coupled Unit)

5kWh AC-coupled battery power storage for homes

PowerTrunk MAU5000 Home Solar Application Scenario

All-in-One Home Storage & Backup Solution

Achieve True Energy Independence with Seamless Power Security

TSUN Smart App Control for Solar Battery

Connected. Automated. Smart. Total control at your fingertips.

Superior Safety. Elite Performance. Simplified.

The PowerTrunk TSOL-MAU5000 is an elite, AC-coupled energy storage solution. By bridging the gap between existing microinverters and batteries, it allows you to store surplus daytime solar power for 24/7 home use and robust emergency backup.

Plug & Play Retrofit Design — No Professional Rewiring Required

Elegant Integration for
Modern Living Spaces

Designed to complement your home aesthetics, the MAU5000 provides massive 5120Wh energy storage capacity in a sleek, compact form factor. Its ultra-quiet natural convection cooling and robust build make it perfect for both cozy living rooms and rugged outdoor installations.

5.12 kWh

LFP Battery Capacity

≤ 10 ms

UPS-Level Switching

• 100% Compatible with existing solar systems
• Smart remote monitoring via WiFi/Bluetooth
• Stack up to 4 units (single-phase) or 6 units (three-phase).

MAU5000 5kWh Home Battery Integration Scenario

Built for the Elements: IP65 Weatherproof

Install your outdoor solar battery storage with total peace of mind. The MAU5000 features a rugged, die-cast IP65-rated enclosure, providing uncompromising protection against heavy monsoon rain, coastal salt mist, and extreme temperature fluctuations.

IP65 Weatherproof Outdoor Solar Battery Storage System Environment Test

MAU5000 AC Interface with 2.5kW Plug and Play Power Output

True Plug-and-Play
High Power Output

Experience the ultimate convenience with our AC-coupled design. The MAU5000 functions as a plug-and-play solar battery, featuring a dedicated AC interface for effortless setup. Its robust 2.5kW high-power output effortlessly drives multiple heavy household appliances simultaneously.

Expandable Capacity Ecosystem

Future-proof your home. Expand seamlessly by linking up to 4 units in parallel for single-phase or 6 units for three-phase systems as your energy demands grow.

Broad Ecosystem & Smart Meter Integration

Maximize your energy savings by pairing the MAU5000 with industry-leading smart meters like Shelly, Tibber, PowerFox, EcoTracker, and IOmeter. Unlock Dynamic Tariff arbitrage and precision real-time tracking to ensure zero grid waste.

MAU5000 Compatible Smart Meters Shelly Tibber PowerFox for Dynamic Energy Tariffs

24/7 Power Security: Nighttime Independence

Don't let your solar savings fade with the sunset. The MAU5000 acts as your ultimate solar battery backup for power outages and nighttime utilization. Store your daytime PV surplus and seamlessly power your home through the night with 100% clean, self-generated energy.

Power Your Home at Night with Solar Battery Backup System

Off-grid Outdoor Energy Solution with Micro-grid Technology

Empowering Life, Beyond the Grid

With advanced Grid-forming capability, the MAU5000 is an independent micro-grid. Connect your microinverters to the off-grid port for seamless power supply even when the main grid is down.

Intelligent Energy
Ecosystem

Zero Feed-In Control

Smart meter integration ensures every watt produced stays in your home, preventing unauthorized grid export.

Time-of-Use Optimization

AI-driven algorithms charge the battery when grid rates are lowest and discharge during peak expensive hours.

Technical Specifications

Download Datasheet ▼

MAU5000-EN.pdf

Model	TSOL-MAU5000
Battery Type	LiFePO4 (LFP)
Capacity	5120 Wh
Cycle Life	6000 Cycles
Max Output	2500 W
Switch Time	≤ 10 ms
Protection	IP65

*Only partial parameters are listed above. Please refer to the official datasheet for full specifications.

Frequently Asked Questions

What precautions should I take before installing/adding Stackable Micro Battery?

A :

When installing/adding expansion batteries, it is necessary to power off and shut down the system to protect yourself and the machine. Performing this operation while powered on is not covered under warranty. Please follow the steps below for proper installation: a. Disconnect the Micro Storage Unit and the solar panels. b. Press the on/off button for 2 seconds to turn off the power. c. After turning off the Micro Storage Unit, install the expansion batteries to the Micro Storage Unit. d. Connect solar panels for normal use.
Are there any other precautions that need to be taken when installing and using the product?

A :

Ensure that the AC outlet is properly grounded.
Can I change the battery to the Micro Storage Battery or Stackable Micro Battery by myself?

A :

No. If your battery in Micro Storage Unit or Stackable Micro Battery does not work or working conditions do not meet expectations, please contact the TSUN customer service team for further help.
How to make sure the equipment is safely grounded?

A :

The included AC end cable already ensures that the machine is safely grounded, so there's no need to worry.
Are microinverters required to use Micro Storage Unit?

A :

Micro Storage Unit does not require a microinverter. A microinverter is already incorporated into its all-in-one design that also includes a photovoltaic controller and energy storage battery pack.
Can the Micro Storage Unit charge batteries using the household power grid?

A :

Yes, the Micro Storage Unit can charge your batteries using your home's AC power. It can be scheduled to do so during off-peak hours to reduce costs, and will also automatically charge AC power when the batteries are low and there is insufficient solar power, preventing battery damage and ensuring that you have some reserve energy available.
How do I use Micro Storage Unit to achieve zero-power function?

A :

You need to buy our optional accessory smart meter, which prevents energy back-flow to the public grid by adjusting the output power of the Micro Storage Unit, matching household load in real-time. This achieves the purpose of not transmitting energy to the public grid, which is the anti-back-flow function.
How does the smart meter help Micro Storage Unit achieve zero energy waste?

A :

The smart meter detects the total household electricity consumption, which lets Micro Storage Unit continually adjust output power. It's real-time and precise electrical discharge for your home, helping you achieve efficient energy use without waste.