Marstek Venus D Extension Battery MST-E2.5ST-D

Expand Your Venus D System
The MST-E2.5ST-D is a dedicated expansion battery module designed exclusively for the Marstek Venus D All-in-One ESS. Each module adds 2.56 kWh of usable energy, and you can connect up to 6 modules per system for a maximum total storage capacity of 15.36 kWh.

Reliable LiFePO4 Technology
Featuring lithium iron phosphate (LiFePO4) cells in a 16S configuration, with a nominal voltage of 51.2 V and a capacity of 50 Ah. Rated for over 6,000 cycles, it delivers years of dependable performance with natural convection cooling.

Compact & Weatherproof
The IP65-rated enclosure measures just 480 x 320 x 115 mm and weighs 19 kg, making it easy to install indoors or outdoors alongside your Venus D main unit.