Marstek
Venus B 2 kWh Ultra-Slim Plug-in Home Battery (1.5 kW Bidirectional, AC-Coupled)
HybridBattery includedVDE-AR-N 4105
Ultra-slim 8.6 cm AC-coupled plug-in battery storage for existing balcony solar systems. 2 kWh LFP capacity, 1.5 kW bidirectional inverter (800 W feed-in limit, configurable), 6,000 cycles, IP65 wall-mounted enclosure weighing only 20 kg. Operates from -20 to 60 degrees C.
800W
AC output
2
kWh battery
Price not listed — check retailer for current pricing.

System
Kit typeHybrid
AC output800 W
Panel count0
SKUMST-BIE2-1500
Panel
BifacialNo
Inverter
BrandMarstek
ModelVenus B Bidirectional
TypeHybrid
Battery
BrandMarstek
ModelVenus B (MST-BIE2-1500)
Capacity2 kWh
ChemistryLFP
Cycle life6,000 cycles
Warranty10 years
Mounting & Install
Mounting includedYes
Mounting typeWall
Plug typeSchuko
Install difficultyPlug-and-play
Smart Features
App monitoringMarstek App
Wi-Fi enabledYes
Compliance & Certifications
UK G98 (≤16A)No
UK G99No
VDE-AR-N 4105 (DE)Yes
CE markedYes
CertificationsCE, VDE-AR-N 4105, IP65, EN 50549
Warranty
Overall10 years
Battery10 years
Availability
Available inGermany, NL, European Union
hybridwith-batteryac-coupledwall-mountplug-and-playbalcony-storagelfp
Explore Other Solar Products
Related kits
Marstek
Venus E Gen 3.0 5.12 kWh AC-Coupled Balcony Storage (with CT002 smart meter)
Marstek
Jupiter C Plus 2.56 kWh All-in-One Balcony Storage (4 MPPT, 2,400W PV, 800W AC, Expandable to 10.24 kWh)
Marstek
JUPITER E 5.12 kWh All-in-One Balcony Energy Storage (4 MPPT, 2,000 W PV)
Marstek
Venus A 2.12 kWh All-in-One Balcony Power Plant (4 MPPT, 2.4 kW PV, 1.2 kW AC, EPS)