Modular solar power storage system & bidirectional inverter
Modular solar power
storage system & bidirectional inverter
BK215 main power storage unit, B215 extension power storage unit & EV3600 bidirectional inverter
Now available at the following partners - a click on the logos takes you directly to our partners' web shops:
" Discover Germany's most powerful solar power storage system in its class "
SunLit BK215 rated "very good" in comprehensive solar power storage system test
This is how the editorial team of Home & Smart rated our storage unit: "The SunLit BK215 storage unit offers an impressive storage capacity of 2.15 kWh, which can be expanded with up to three B215 additional modules to a total of 8.6 kWh, making it one of the absolute top contenders. (...) During our test, all components could be easily plugged together and wired. Additionally, the connection with the manufacturer's app worked significantly faster than with other test storage units. (...) As a supplement to the practical test, we also conducted a brief check of the manufacturer's customer service, contacting them both in writing via email and over the phone. In both cases, we benefited from short response times and encountered friendly staff, which we consider a clear advantage. (...) Due to its ease of use and high storage capacity, we can recommend the SunLit BK215 to anyone looking to store a large amount of energy long-term."
The editorial team's conclusion: “An indoor- or outdoor-usable solution for comprehensive power storage.”
SunLit Balcony Power Plant Set with BK215 rated "Very Good" in Stern Comparison Test
Here's what the Stern editorial team wrote about our solar power storage set*: "Anyone looking for a plug-in solar PV set with battery and wanting to leave it outside over the winter is in exactly the right place with this system."
The tested set included the SunLit BK215 head storage unit, two 410W Austa solar modules, an 800W Deye inverter, a Shelly Pro 3EM smart meter, and the necessary connection cables.
SunLit's modular power storage system - it's really that simple!
Holger Laudeley relies on the solar power storage system by SunLit
Mr. Energy Transition, Holger Laudeley, presents the SunLit solar power storage system.
Product video of the SunLit BK215 & B215 (main & extension) power storage units
Watch our video to find out more about the advantages and features of our power storage system, how you may control the power storage system using the SunLit app and much more...
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Customer reviews
Here's how our customers rate their experience with the SunLit system:
Great system that is very easy to put together. Plus a support that helps quickly at all times.
— Enrique M.
The storage system can be easily integrated into an existing plug-in PV plant and can also be expanded later on. Technical questions are answered very quickly by the great support team.
— Thomas F.
With SunLit, there is NO longer a single argument for not starting with PV. The SunLit storage system is the only system that can be individually adapted to your own needs and possibilities on both the consumption and generation side. Everything is possible, from very small to a real PV system. The support and community are unbelievably good!
— Lutz R.
Simply thrilled. I want to take this opportunity to praise the SunLit support! It's just great how quickly and smoothly they help you. Very rare these days but so important, especially with DIY Solar. Thumbs up from me, and keep it up.
— Kai Ed K.
Great system that is very easy to put together. Plus a support that helps quickly at all times.
— Enrique M.
The storage system can be easily integrated into an existing plug-in PV plant and can also be expanded later on. Technical questions are answered very quickly by the great support team.
— Thomas F.
With SunLit, there is NO longer a single argument for not starting with PV. The SunLit storage system is the only system that can be individually adapted to your own needs and possibilities on both the consumption and generation side. Everything is possible, from very small to a real PV system. The support and community are unbelievably good!
— Lutz R.
Simply thrilled. I want to take this opportunity to praise the SunLit support! It's just great how quickly and smoothly they help you. Very rare these days but so important, especially with DIY Solar. Thumbs up from me, and keep it up.
— Kai Ed K.
SunLit power storage unit and extensions at a glance
Main power storage
unit BK215
Extension power storage
unit B215
Bidirectional inverter
EV3600
Technical data
Approx. 32.5 kg
Net. weight
Approx. 31 kg
Net. weight
Approx. 18.8 kg
Net weight
L479*W289*H261mm
Dimensions
L479*W289*H292mm
Dimensions
L524*W338*H292mm
Dimensions
2,150 Wh
Storage capacity
2,150 Wh
Storage capacity
Can only be used in combination with min. 1x main power storage unit BK215
To use the full range of functions, 1x BK215 and 3x B215 are recommended
Storage capacity
Yes
Wi-Fi enabled
See main power storage unit
Wi-Fi capable
See main power storage unit
Wi-Fi capable
Yes
Bluetooth enabled
See main power storage unit
Bluetooth-capable
See main power storage unit
Bluetooth-capable
IP65
(when installed with base stand)
Protection class
IP65
(if installed with main power storage unit and base stand)
Protection class
IP44
Protection class
Yes
(if the internal storage temperature drops to -5°C or all the way down to -20℃ the heating feature is automatically activated, but only if solar power input is also available)
Operational temperature range & heating feature
-20°C to +40°C, 10% - 90 % RH, heat dissipation through air cooling
Operational temperature range & heating feature
94%
Output efficiency
Output power specifications
33.6 V - 43.2 V / max. 50 A,
total max. 1,920 W
Outputs
See main power storage unit
Outputs
230 Vac / 50 Hz / max. 16 A
AC output (x2) / Wall box AC output (x1）
230 Vac / 50 Hz / max. 16 A, 3.68 kW (single-phase）
400 Vac / 50 Hz / max. 16 A, 11.04 kW (three-phase）
Grid connection (x1)
Input power specifications
2x 10 V - 80 V / 20 A, single connection max. 800 W, total max. 1,600 W
PV inputs
10 V - 80 V / 20 A, max. 800 W
PV inputs
25 W
Power consumption at zero load
Yes, the BK215 supports up to 3x B215 extension power storage units
(base stand must also be installed)
Storage extensions
See main power storage unit
Storage extensions
Air cooling
Heat dissipation
Yes
Memory charging function
Yes
Wallbox AC output function
Yes
AC output function
Yes
Peak shaving and valley filling
Product details
High-quality head storage with 2.15 kWh storage capacity, 2x outputs with up to 1,920 W max and 2x PV inputs up to 1,600 W for up to 4 solar modules (up to 400 W each)- Elegant LCD display with display of input and output power, remaining storage capacity and WLAN and Bluetooth display, among other things
- Long service life with up to 8,000+ charging cycles (at 20-80% charge level)
- Indoor or outdoor use possible thanks to IP65 and battery management system (BMS) with auxiliary heating
- Plug-in solar plant with zero installation fees including easy expansion options with up to 3 SunLit extension storage units thanks to modular design
- Real-time monitoring, control and optimisation of the feed-in via SunLit Solar App with day and night feed-in
- Smart zero waste strategy available via Shelly or TASMOTA bitShake integration, additional information on the Shelly Pro 3EM
- Expand your BK215 head storage unit with up to 3 extension storage units, 2.15 kWh each, for a maximum storage capacity of up to 8.6 kWh
- Connect of up to 10 solar panels (up to 400 W each) when using a BK215 in combination with 3 B215 extension units
- Highly customisable to your individual needs thanks to the simple expansion with modular design
- Indoor or outdoor use possible due to IP65 and battery management system (BMS) with auxiliary heating
- Real-time monitoring, control and optimisation of your feed-in via the SunLit Solar app with flexible day and night feed-in
- Automatic limitation function if voltage is too low
- If only one BK215 storage unit is in use, the maximum charging power is 1 kW. With one BK215 storage unit and one or more additional B215 extension storage units the maximum charging power may reach 2.4 kW
- 10.8 kW charging power when connected to a three-phase power supply
- If only one BK215 power storage unit is in use without microinverter or the microinverter has no output power, the max. output power of the EV3600 (for each AC output as well as both outputs together) is 1.26 kW. If there is one BK215 and one B215 extension power storage unit in use, the maximum output power of the EV3600 (for each AC output as well as both outputs together) is 2.51 kW. If there is one BK215 and two or more B215 extension power storage units in use, the maximum output power of the EV3600 (for each AC output as well as both outputs together) is 3.35 kW
- To use the wallbox AC output and the car-charging mode, at least one BK215 storage unit and at least two B215 extension storage units have to be connected
TECHNICAL DETAILSTECHNICAL DETAILS
Compatible with the SunLit App
Adjust the feed-in anytime and anywhere via our SunLit app
The SunLit app makes it easy for you to track and optimise the solar energy production of your system.
App User Manual (PDF)Germany-based customer support
A device is only as good as its support:
We place great importance on fast service and are here for you — via our support center, by email, and by phone. Do you have any questions or need assistance with the setup or operation of your SunLit system? Then reach out to our team via the following link:
CUSTOMER SUPPORT FORUMConsultation Enquiry
Do you still have questions regarding our energy storage units or you would like to have a personalised consultation?
Please contact us via the form below and we will call you back shortly.
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