Description
The Marstek Venus D is designed for households that want to directly connect solar panels alongside a larger home battery — no separate solar inverter needed. With four independent MPPT trackers accepting up to 4,000W of solar input and a 2.2kW bidirectional grid-tied inverter built in, it functions as both solar charger and home battery in one stackable unit. Starting at 2.56kWh per module, the Venus D expands to 15.36kWh by adding up to five extra battery modules — without replacing the base unit. IP65 rated for outdoor installation. LiFePO4 chemistry delivers 6,000+ cycles with a 10-year warranty. Sub-15ms EPS backup. Ideal for self-build solar installers, garden offices, and homes with a separate PV roof array. Currently sold out at all UK retailers.
- Capacity: 2.56kWh base | Expandable to 15.36kWh (6 modules)
- Output: 2,200W continuous / 2,500W peak | Backup: 2,200W
- Solar: 4 × MPPT, 4,000W max, 16–60V, 20A/channel
- EPS backup switchover: <15ms | IP65
- LiFePO4 | 6,000+ cycles at 80% capacity
- Base unit: 480 × 320 × 230mm, 28kg | Module: 480 × 320 × 115mm, 19kg
- CE certified | Wi-Fi + Bluetooth | 10-year warranty

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