Marstek Venus E 4.0
The Marstek Venus E 4.0 is a home battery with charge power (continuous) 3 kW and cell chemistry LFP.1,2
Key figures
Technical specifications
| General | |
|---|---|
| Cell chemistry | LFP1 |
| Smart charging on dynamic prices | Yes2 |
| Wi-Fi / app | Yes1 |
| Performance | |
| Nominal capacity | 5.02 kWh1 |
| Smallest configuration | 5.02 kWh1 |
| Expandable up to | 15 kWh1 |
| Charge power (continuous) | 3 kW1 |
| Discharge power (continuous) | 3 kW1 |
| Efficiency | |
| Depth of discharge | 88 %1 |
| Electrical | |
| Backup power | Yes1 |
| Dimensions & weight | |
| IP rating | IP651 |
| Min. operating temperature | -20 °C1 |
| Weight | 47.2 kg1 |
| Warranty & lifespan | |
| Warranted cycles | 10,0001 |
Manufacturer documentation
- Product page
- Brochure / leaflet — MARSTEK VENUS E 4.0 – Brochure / Specifications – juni 2026
External links to Marstek's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.
Compare with
More from Marstek
- Marstek Venus C Usable capacity: 2.56 kWh
- Marstek Venus E Usable capacity: 5.12 kWh
- Marstek Venus E 3.0 Nominal capacity: 5.12 kWh
- Marstek Venus E MAX Nominal capacity: 10.05 kWh
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- Plug-in home batteries in the UK: rules, G98 and safety
- Home batteries and time-of-use tariffs: charging cheap, using at peak
- Home battery fire safety: cell chemistry, siting and PAS 63100
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Frequently asked questions
Sources
- MARSTEK VENUS E 4.0 – Brochure / Specifications, juni 2026 — Marstek Energy Co., Limited · accessed 22 Oct 2026
- Manufacturer data · accessed 22 Oct 2026