Stored kilowatt-hours only pay back if the house uses them at night · review
A balcony storage unit with two MPPT trackers taking 1200 W of solar, expandable to 9.6 kWh with five further packs, rated IP65 and stated to operate down to −20 °C.
The bottom line The most usefully specified balcony unit here on the solar side: two trackers with a per-tracker limit, an operating floor in winter, and a stated warranty. It is also the one that publishes an annual euro saving and never names its cell chemistry.
A modular balcony battery whose sheet is strongest where the panels connect and weakest where the cells are.
1200 W of solar across two MPPT inputs at 600 W each. Publishing the per-tracker limit rather than only the total is the difference between a specification and a marketing figure: it tells you how a split array can be arranged, which is exactly the situation a balcony with two orientations creates.
Operation down to −20 °C is stated in the fifth bullet. Very little on this shelf publishes a low-temperature figure at all, and on a unit that lives outdoors through a winter it is among the most consequential lines on the page.
1600 Wh in the base unit, up to 9.6 kWh with five further packs. The ceiling is published as a number rather than as “expandable”.
No chemistry, and a cycle count without its percentage. And an annual saving quoted to the euro, resting on a self-consumption rate, with neither a tariff nor a consumption behind it — a projection rather than a property, and not repeated in the lines above.
German Amazon store quoted about 399 € when this page was compiled.
French Amazon store wanted more than 1.6× what the cheapest country wanted. A margin that wide usually means stock shipped in from elsewhere rather than a seller on the ground, so that quote stays out of the range above.
British, Italian and Spanish Amazon catalogues carry an entry for it, with nobody selling.
American Amazon store returned nothing at all, so the buy button there runs a search instead of landing on an empty page.
These figures are what Keepa reported on the day this page was last updated. Availability and pricing move without notice.
Prices quoted in this text were read on 16 September 2026. The live price is at the top of the page.
| Usable capacity | Nowhere in the listing — a maximum of 9.6 kWh is published with five added packs, with no usable figure |
|---|---|
| Charge and discharge power | Solar input of 1200 W across two MPPT trackers, 600 W each, first bullet; no discharge power is published |
| Chemistry | Nowhere in the listing — not named in any bullet |
| Cycle life | 6000 cycles, fifth bullet, alongside a stated 15-year product life and a 10-year warranty; no capacity percentage accompanies the count |
| Inverter compatibility | Not named; the unit stores what the panels produce and releases it as required |
| Published metering | An Anker SOLIX smart meter is described as reporting consumption in three seconds and passing it to the unit, fourth bullet |
| Amazon reference | B0D1XMRC56 (same reference on 5 Amazon marketplaces) |
| EAN | 0194644035426 |
Because panels connected to one tracker are managed together. Two trackers let two groups — different orientations, different shading — run at their own best operating points, and the per-tracker ceiling is what decides how the groups are split.
It is a projection, not a specification. The listing quotes a euro amount and a self-consumption percentage without naming a tariff or a household consumption, so nothing about it can be checked. This page does not repeat the figure in its specification lines.
1600 Wh base, up to 8 kWh · 1600 W output · 3 MPPT, 2700 Wp solar · LiFePO4 · IP65 · AC-coupled · smart meter and tariff integration
An AC-coupled all-in-one balcony storage system with three MPPT trackers taking 2700 Wp, a 1600 W output, expansion to four packs, and integration with dynamic electricity pricing.
Best for: A household on a dynamic electricity tariff that already has roof PV and wants to stop exporting surplus.
≈ €448
1.92 kWh nominal · 2800 W solar across 4 MPPT · 1200–2300 W on two AC ports · LFP, 6000 cycles · IP65 · down to −20 °C · 26 cm wide
An AC-coupled 1.92 kWh LFP unit with four MPPT trackers taking 2800 W of solar, two mains ports rated 1200 to 2300 W, IP65 and stated operation to −20 °C.
Best for: A narrow indoor space beside an existing balcony installation, where four panel groups need managing separately.
≈ €549
1.92 kWh nominal, up to 11.52 kWh · AC-coupled · bidirectional DC/AC efficiency 96.5 % · AC round-trip efficiency 86 % · app control
An AC-coupled 1.92 kWh battery expandable to 11.52 kWh whose listing publishes both a conversion efficiency and a round-trip efficiency — the only one in this family that does.
Best for: Someone comparing storage on what a stored kilowatt-hour costs rather than on headline capacity.
≈ €545
