Indevolt BK1600 Ultra Balcony Solar Power System with Storage
Indevolt BK1600 Ultra Balcony Solar Power System with Storage
- 30% lighter and more compact than comparable balcony power plants with storage – only 300 x 215 x 250mm and 16kg. Ideal for a variety of locations.
- Easy capacity expansion: Up to three units can be stacked, reaching a total capacity of 4.9 kWh.
- 99% compatibility: The BK1600 Ultra solar system with storage is compatible with micro-inverters up to 1200W.
- Bidirectional charging: Use low-tariff periods to charge from the power grid or prepare for low sunlight with an emergency power supply.
- Perfect for off-grid applications: Portable and ideal for on the go. The solar storage system gives you the freedom to power critical household appliances even during a power outage.
- Local network connection: The BK1600 Ultra solar power storage transmits data via Wi-Fi or 4G to the cloud and enables local control via Bluetooth, all without a cloud connection.
- Smart energy utilization: With AI technologies, you can increase your yields and reduce your electricity costs at the same time.
- 30-Day Return Policy
- 10-Year Warranty
- Free and Fast Shipping
- Lifetime Customer Support
- 30-Day Price Guarantee
Break the 800W limit, maximize energy efficiency
For the 800W grid feed-in limitation, we use legal power draw via the AC outlet of the device. We have developed a tailor-made solution that ensures compliant energy consumption and effectively exceeds the power limit.
When the power user detects excess energy that can be fed into the grid, the BK1600 Ultra stores this energy in the battery. This intelligent control maximizes energy efficiency and helps you effortlessly avoid energy losses.
By storing the solar energy generated and connecting household appliances to the storage’s AC outlet, the system can utilize solar energy legally and to the maximum. This not only optimizes solar energy use but also achieves zero electricity cost billing.
Explore new ways to boost your self-consumption
Even with higher capacity, the 800W grid feed-in limit makes it difficult to fully utilize daytime PV energy. We recommend bypassing this limitation via a decentralized network and making optimal use of stored energy.

Intelligent control strategy
Connect your household appliances to the storage’s AC outlet and experience seamless security during power outages: the system automatically switches to battery operation in just 10 ms to keep your devices running. At the same time it intelligently determines the optimal charging and discharging strategy, maximizes solar energy use and optimizes your energy costs.

Place flexibly, maximize room usage at home
The solar inputs support flexible expansions, with a power of 1.2 kW, which can be maximized to 3.6 kW. Don’t worry if balcony space is limited—the BK1600 Ultra uses a near-mount concept where the solar modules are placed directly next to the device. This eliminates elaborate cable laying and makes it easy to set up a solar storage system even in small spaces.

Flexible konfiguration



With the BK1600 Ultra you enjoy a stable power supply for your household devices via island or grid connection – for reliable everyday energy supply.
With two BK1600 Ultra you can enable wired coupling and increase to 2300W. This allows even high-power household appliances to run primarily on solar energy without relying on the grid – maximizing sun usage.
With three BK1600 Ultra we recommend using a micro-inverter and enabling wireless parallel operation. This allows common household devices to be connected to the storage’s AC outlet and increase the output to 3600W, reducing your electricity bill to zero.

99% compatibility
Unlike traditional DC-coupled solutions, the BK1600 Ultra delivers seamless compatibility with all microinverters on the market thanks to its AC-coupled technology. Simply connect the BK1600 Ultra to your existing microinverter and solar panels to maximize balcony solar power and lower your electricity costs. Unlock the full potential of balcony solar with integrated storage!

Communication
Local network connection: The BK1600 solar power storage transmits data via Wi-Fi or 4G to the cloud and enables local control via Bluetooth, all without cloud dependence. APIs support integration into third-party smart home systems.
Save energy costs more efficiently with AI
Indevolt Smart AI develops customized energy management solutions based on precise Big Data analysis. By combining historical power consumption data and weather factors, our technology predicts your hourly usage and expected solar energy production based on weather and your PV system’s performance. By integrating dynamic prices and current battery status, you can monitor the cost per kWh in real time. This automatically optimizes charging and discharging strategies to minimize your energy costs and maximize your savings.

Which option is right for you?

BK1600
- The best entry option for balcony solar power station with storage
- Combine PV, storage, and expansion in one step — ideal for beginners without balcony systems
- Supports capacity expansion through wireless parallel operation

BK1600 Ultra
- Full feature set of BK1600
- Enables integration with micro inverters to upgrade existing PV systems with storage
- Seamless capacity expansion through BK1600 parallel operation
Package content

FAQ
What is the difference between the BK1600 Ultra and the BK1600?
What is the difference between the BK1600 Ultra and the BK1600?
Both devices, the BK1600 and the BK1600 Ultra, feature an all-in-one design and include a bidirectional inverter. If you do not have a solar system installed at home (i.e., no micro-inverter), you should choose the BK1600. This allows you to implement solar generation and storage together and to optimally use the surplus electricity produced by the PV system during the day for evening use. This is the most cost-effective option. If you already have a solar installation, choose the BK1600 Ultra to enable storage and additionally connect up to 1200W of solar modules.
How does the BK1600 Ultra maximize energy usage?
How does the BK1600 Ultra maximize energy usage?
The BK1600 Ultra overcomes the conventional 800W limit for individual storage devices by operating within regulatory requirements. Using a wireless network and intelligent power-sharing technology, it connects high-power household appliances to the Off-Grid connection to optimally utilize the stored energy from the PV system.
Can I connect my BK1600 Ultra to a micro-inverter?
Can I connect my BK1600 Ultra to a micro-inverter?
Yes, the BK1600 Ultra is compatible with 99% of micro-inverters available on the market. You simply plug it into the Off-Grid input to receive an additional 1200W input. Please note that the BK1600 Ultra is only compatible with micro-inverters up to 1200W.
Does the BK1600 Ultra have the EPS (emergency power supply) function?
Does the BK1600 Ultra have the EPS (emergency power supply) function?
Yes, the BK1600 Ultra can continuously deliver power through its Off-Grid outlet. In the event of a power outage, the device switches to EPS mode within 10 ms and provides a maximum continuous power of 1200W. For high starting-current devices, it can provide a peak of up to 1800W for up to 15 seconds to ensure important devices like refrigerators, routers, and lighting continue to operate during an outage.
Can the BK1600 Ultra’s EPS function be used in parallel operation with wired connections or when connected to a micro-inverter?
Can the BK1600 Ultra’s EPS function be used in parallel operation with wired connections or when connected to a micro-inverter?
If the BK1600 Ultra is paralleled via the AC port or connected to a micro-inverter, that AC port is occupied and cannot be used simultaneously as an EPS output.
What are the advantages of parallel operation with cables for my family?
What are the advantages of parallel operation with cables for my family?
Through wired interconnection of several BK1600 Ultra units, high-power household appliances can be operated. For example, a 2000W washing machine, which a single Ultra (1200W rated) cannot run, can be supported in parallel. In this case, the load is distributed evenly across each device, so each Ultra only needs 1000W to start the washing machine. This optimizes battery capacity without drawing power from the grid.
Can the BK1600 Ultra wirelessly network with the BK1600?
Can the BK1600 Ultra wirelessly network with the BK1600?
Yes, this is possible. Both devices are fully compatible for wireless networking. If you already own a BK1600, you don’t have to worry about compatibility issues when you later acquire the Ultra. You can simply use the wireless connection to enable collaboration among multiple devices.
What are the practical differences between the Off-Grid outlets of the BK1600 and BK1600 Ultra?
What are the practical differences between the Off-Grid outlets of the BK1600 and BK1600 Ultra?
The BK1600 Ultra’s Off-Grid outlet can be activated directly in grid operation to supply your household loads. In contrast, for the BK1600, you must first disconnect from the grid to start supplying loads via the Off-Grid outlet.
How can you determine which model better fits your household needs?
How can you determine which model better fits your household needs?
If your household appliances require a permanent connection via the Off-Grid outlet and uninterrupted power supply, you should consider the BK1600 Ultra. If your household simply wants to feed power to the grid and use the Off-Grid outlet mainly outdoors, we recommend the BK1600.