Marstek Venus E vs Zendure SolarFlow 800 Pro
A side-by-side look at the Marstek Venus E and Zendure SolarFlow 800 Pro. Winning figures are highlighted.
| Marstek Marstek Venus E | Zendure Zendure SolarFlow 800 Pro | |
|---|---|---|
| Price from | £999 | £899 |
| Usable capacity | 5.12 kWh | 1.92 kWh |
| Max expandable | 5.12 kWh | 11.52 kWh |
| Max AC output | 800 W | 800 W |
| Max PV input | 0 W | 2640 W |
| Cycle life | 6000 | 6000 |
| Weatherproofing | IP65 | IP65 |
| App control | Yes | Yes |
| AC-coupled (works without panels) | Yes | No |
Best value per row highlighted. Prices last checked 15 October 2026.
Marstek Venus E
Different from the rest: the Venus E has no solar input; it's a plug-in battery for off-peak tariff arbitrage, popular in Germany. In Great Britain plug-in batteries can't be self-installed under the current rules, so it would need a hardwired installation by an electrician.
Full Marstek Venus E reviewZendure SolarFlow 800 Pro
DC-coupled, so the panels feed the battery directly and surplus is caught before the 800W bottleneck, the right architecture if you're running big arrays. Strong value per stored kWh, but UK buyers currently have to import via specialist retailers rather than a Zendure UK store, so factor in shipping and thinner local support. Like all plug-in batteries, it can't currently be self-installed in Great Britain.
Full Zendure SolarFlow 800 Pro review