Marstek home battery: Venus-E price and specs
Marstek Energy makes compact, LFP-based home batteries. We carry the Marstek Venus-E at 5.12 kWh; below is the current price, specs, and whether professional installation is required.
What does a Marstek home battery cost and do you install it yourself?
From Marstek we currently carry one home battery, at 5.12 kWh, for 1,627 euro including VAT. Measured across the whole Dutch market, Marstek sells at 272 euro per kWh, about 17 percent below the Dutch market median of 328 euro per kWh. That figure comes from our own price index covering 1,020 offers at 61 shops. Marstek uses LFP cell chemistry. We record per model which manufacturer document confirms that chemistry, and that confirmation is still outstanding here, which we would rather state than omit.
A Marstek battery only works with a hybrid inverter the manufacturer has released for that specific combination. You plug it into a wall socket yourself; no installer is needed. A socket battery is capped at roughly 800 watts, so it does not work as backup power. The same model costs a median 22 percent more at the dearest Dutch shop, so compare on model number.
From that date the feed-in credit for solar power largely disappears. A home battery lets you use more of your own generated power yourself, including in the evening, instead of exporting it at a low rate.
Plug-and-play home batteries feed power through the wall socket circuit, which is legally capped at 800W. On a dedicated circuit that rises to roughly 3,500W. Enough to use more of your own solar power, not enough to serve as emergency backup during a power outage.
Compare the Marstek Venus-E
| Capacity | Model | Price | Availability | |
|---|---|---|---|---|
| 5 kWh | Marstek Energy MARSTEK VENUS-E Home Bat... | €1.626,95 | In stock | View |
Frequently asked questions
Marstek home batteries cost 1,627 euro including VAT here, in capacities from 5.12 kWh. That works out at a median 318 euro per kWh. It is the battery itself: on a permanently installed system an inverter and the installation come on top. We carry 1 Marstek model with a known capacity. Separate parts such as BMS and connection modules sit outside that figure, because they store no energy and so have no price per kWh.
Measured across the whole Dutch market, Marstek sells at 272 euro per kWh, about 17 percent below the Dutch market median of 328 euro per kWh. That is a market figure rather than a verdict on the brand, taken from our own price index covering 1,020 offers at 61 Dutch online shops, measured between 2026-08-16 and 2026-09-01. The same model costs a median 22 percent more at the dearest Dutch shop than at the cheapest, so comparing on model number usually pays better than switching brand. The middle half of all Dutch offers sits between 249 and 424 euro per kWh.
None. This is a plug-in battery with its own built-in inverter, so it is not paired with a separate hybrid inverter and not with your existing solar inverter either. It measures household consumption and charges or discharges against it. On permanently installed systems that pairing does decide everything, which is why we maintain a table of 544 manufacturer-approved battery and inverter combinations.
Yes, Marstek uses LFP cell chemistry. We record per model which manufacturer document confirms that chemistry; for this model the confirmation is still outstanding, and that is stated here rather than left out. LFP is why we carry nothing else: the chemistry is thermally more stable than NMC, and it is also the requirement in our own insurance terms. The full per-model check is in our open cell chemistry dataset.
No. A plug-and-play home battery goes into an ordinary wall socket and needs no change to the consumer unit, so no electrician is required. That is also its limit: the socket sits on a shared circuit, which caps discharge at around 800 watts. For a system that can carry the whole house, or that keeps working during an outage, permanent installation is still required.
From Marstek we currently carry one model at 5.12 kWh. That is enough to shift solar generation into the evening for an average household without a heat pump or an electric car. On the Dutch market the median around this size is 364 euro per kWh in the 8 to 12 kWh class, against 299 euro per kWh around 20 kWh.
Where do these figures come from?
Every number on this page comes from one of our three open datasets. They are built independently of our own stock and cover brands we do not sell, so the measurement does not depend on what happens to be in our shop.
- Dutch home battery price index Median 328 euro per kWh including VAT, measured across 1,020 offers at 61 Dutch online shops between 2026-08-16 and 2026-09-01. With medians per capacity class and per brand, and the full method including every exclusion rule.
- Cell chemistry per model The cell chemistry of every home battery we sell, established per model, each row naming the manufacturer document it came from, plus the models rejected after checking.
- Battery and inverter compatibility 544 manufacturer-released combinations of home battery and inverter, merged from official compatibility documents, each row naming its conditions and its source document.