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KESSER Aqua-9000 review

A floor robot that publishes what almost nothing else here does: an operating temperature range, a maximum depth, an IP rating and the suction in litres per minute — alongside a runtime that is the shortest on the shelf.

The bottom line The best-documented cheap robot here and the least capable one. An IP rating with a depth, a temperature range and a suction in stated units are three things the rest of this price bracket omits — and 75 minutes over 45 m² is genuinely less machine than the 90-minute robots beside it. Bought for the documentation, on a pool small enough that the runtime is not the constraint.

On the maker’s own page

A cordless floor robot with a 27 W motor, 80 litres per minute of suction and a 5 200 mAh lithium battery giving up to 75 minutes. A 2-litre collection container is supplied, along with a transport bag and a float.

The rating is IPX8 to a maximum depth of 3 metres, and the operating range is stated as 4 °C to 35 °C. The surface list is long: in-ground, above-ground, liner, polyester, stainless steel and mosaic pools.

Two areas in one listing

Up to 80 m² appears in one place and a working area of up to 45 m² in another. Both are the maker’s own figures and they are not reconciled anywhere.

This page prints both. Choosing between them would be our judgement wearing the manufacturer’s typeface, and the discrepancy is itself a fact about the listing.

The figures nobody else gives

A depth with the IP rating. A temperature range. A suction in litres per minute rather than in one of the two gallon-per-hour conventions used elsewhere on this shelf.

Those three make this machine readable in a way most of its price bracket is not — which is worth saying plainly, because none of them makes it clean better.

What is missing

Filter fineness in micrometres, published by seven of the nine robots in this family and absent here. Charge time. Weight. And whether the battery is replaceable, which nobody in this family publishes.

Availability

The German, French, Italian and Spanish Amazon stores sat between 170 € and 183 € at the single check this page is built on.

The American and British Amazon stores gave back nothing, so the buy button there lands on a search instead of a blank page.

These figures are what Keepa gave back the day this page was last written. Stock and prices shift without warning.

Prices quoted in this text were read on 21 September 2026. The live price is at the top of the page.

Declared figures, and the gaps between them

Strengths

  • Publishes an operating temperature range — 4 °C to 35 °C — which no other robot here does
  • IPX8 and a stated maximum depth of 3 metres, so the immersion rating has a depth attached to it
  • Suction published in litres per minute and a transport bag included

Compromises

  • Seventy-five minutes is the shortest runtime in this family, and the stated working area of 45 m² is the smallest
  • No filter fineness published, where seven of the nine robots here give a micron figure
  • The listing states up to 80 m² in one place and a 45 m² working area in another

Specifications

RuntimeUp to 75 minutes from a 5 200 mAh lithium battery
SurfacesFloors, stated for in-ground, above-ground, liner, polyester, stainless steel and mosaic pools; working area up to 45 m²
Filter finenessNot published in micrometres — a 2-litre collection container is supplied
NavigationNot published as a navigation system — automatic shut-off when it leaves the water
Charge timeNot published
WeightNot published
RetrievalA float is supplied; the robot shuts off automatically on leaving the water
Amazon referenceB0GX1QKGLV (one reference across 4 Amazon marketplaces)
EAN4255598372954

The questions this one raises

Why does the listing give two areas?

It states pools up to 80 m² and a working area of up to 45 m². The two figures appear in different places in the same listing and the maker does not reconcile them. This page prints both rather than choosing one, because choosing would be our judgement rather than their statement.

What does IPX8 with 3 metres mean?

IPX8 is continuous immersion under conditions the maker specifies, and here the maker specifies 3 metres. That pairing is what makes the rating readable — IP68 or IPX8 on its own says a product was tested and not at what depth. Most of this shelf gives the rating without the depth.

Is a temperature range useful?

4 °C to 35 °C is the only such figure in this family. It matters at the start and end of a season, when water is cold and a battery-powered machine is being asked to work in it. It is the maker’s statement about their own product.

Who this one is for

A smaller pool where the depth rating and the surface list answer a specific question

Price and availability

A reference exists on these Amazon stores: France, Germany, Italy, Spain. Listed is not the same as in stock — availability changes daily.

Details checked on September 21, 2026.

Sources

Specifications: manufacturer sheet and Amazon product page. Prices and availability: Keepa. No product on this site has been physically tested.

How we assess products