Marstek Venus A Expansion Battery MST-E2.0ST

Seamless Capacity Expansion
The MST-E2.0ST is a dedicated expansion battery module for the Marstek Venus A All-in-One ESS. Simply stack it beneath the main unit to add 2.12 kWh of usable energy per module, with support for up to 5 expansion modules per system.

Long-Lasting LiFePO4 Cells
Built with lithium iron phosphate (LiFePO4) chemistry for over 6,000 charge cycles at 90% depth of discharge. Natural convection cooling ensures silent, maintenance-free operation.

Safe & Weatherproof
IP65-rated enclosure allows both indoor and outdoor installation. The 13S configuration delivers a nominal voltage of 41.6V in a compact 450 x 340 x 168 mm form factor weighing just 19 kg.