LIBERTY 300
Limited evidenceRead the findings →A mid-range cordless Dolphin that climbs to the edge when you shake a clicker in the water. It suits smaller pools if you want rid of the cable. There's no app, so scheduling runs through Eco mode rather than your phone.
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What we know
The Maytronics product page and a Maytronics France article describe a cordless robot that adds Click-Up to the Liberty 200: shake the clicker in the water and it climbs to the edge. A button picks floor-only or full coverage, ultra-fine filter panels come in the box, and it charges through a magnetic connector. There's no app. Beyond Maytronics, search turned up retailer listings and affiliate pages that repeat or contradict the spec sheet.
Click-Up and end-of-cycle pickup
After a cycle, you shake the supplied clicker in the water and the robot climbs the wall so you can lift it out, per Maytronics. It also climbs to the pool's edge by itself when a cycle ends. That should save fishing for it with a hook, which matters for an 8.1kg robot.
Two cleaning modes, plus Eco
Pressing the on/off button picks either floor-only or full coverage, per the Maytronics France article, and the default cycle runs for two and a half hours. An Eco mode runs separate short cycles to keep the floor clean through the week, per Maytronics. There's no app, so no scheduling runs or cleaning log on your phone.
Filters and charging
It uses a top-loading combined filter, and Maytronics says to swap the two fine panels for the included ultra-fine panels after the first clean of the season. Charging is through a magnetic connector that snaps on, so there's no socket to keep dry. It's rated for liner, gunite and fibreglass pools of most shapes, in-ground or above-ground, with a two-year warranty.
What's not checked yet
Our search turned up retailer pages and affiliate round-ups, but no independent reviewer who put this model in a pool and published a finished verdict. So the basics are still open: how thoroughly it covers the floor, whether it really reaches and scrubs the waterline, how reliably Click-Up brings it to the edge, how it copes with leaves and how the battery holds up over seasons. The Maytronics page describes the design, and that's all.
Our take
Should you buy the LIBERTY 300?
Best for: Pools whose owners want a simple cleaner without an app. Skip it if: You want a stronger record in independent tests before buying.
It could suit a pool up to 10 metres if you want to be rid of the cable and don't need an app, but there's no independent test behind it yet. If you want a cordless Dolphin with test results, the Liberty 600 and the EON 100 both did well with testers. The Beatbot AquaSense 2 is a tested cordless alternative that floats to the edge on its own.
The Liberty 300 sits in the middle of Dolphin's cordless Liberty range, sold in Europe as a 2024 model. It adds three things to the Liberty 200: Click-Up, where you shake a small clicker in the water and the robot climbs to the edge; a cycle selector for floor-only or full coverage; and ultra-fine filter panels to swap in after the first clean. It charges through a magnetic connector, with no socket to seal.
The trade-off is that there's no app, so scheduling runs through Eco mode rather than your phone, with short separate cycles to keep the floor clean through the week.
The Liberty 400 is the first model in the range with the MyDolphin Plus app.
Before you buy
The questions people ask about this one
Does it climb walls and clean the waterline?
Maytronics lists floor, wall and waterline cleaning with waterline scrubbing, per the specifications, and a cycle selector lets you choose floor-only instead. We couldn't find an independent test of how well it does it.
Is it cordless, and how long does a charge last?
Yes. It charges through a magnetic connector, and a standard cycle lasts two and a half hours, per the specifications. Eco mode spreads shorter floor cleans across the week. Maytronics doesn't publish a separate battery runtime on its product page.
How do I get it out of the water?
Shake the supplied clicker in the water and it climbs the wall for you to lift out, per the specifications. It also climbs to the edge by itself at the end of a cycle. It weighs 8.1kg.
Does it need an app?
No, and it can't use one, per the specifications. You pick floor-only or full coverage with the button on the robot, per Maytronics France. The Liberty 400 is the first Liberty with an app.
Alternatives
Other robotic pool cleaners to compare.
LIBERTY 600
Why consider it: Two testers found this cordless Dolphin leaves floors very clean, filters well and comes up when you shake the clicker.
The compromise: It wanders at random, and one tester found its step jet shifted only part of the dirt.
EON 100
Why consider it: Testers found this cordless Dolphin cleans floors and the waterline well and never got stuck.
The compromise: It's heavy to lift out, and it gives steps only a quick pass.
AquaSense 2
Why consider it: Testers liked its floor and wall cleaning, and it floats to the edge when it's done, so there's no hook needed.
The compromise: It doesn't skim, and steps and fine silt were hit and miss in testing.
Specs
Full specifications
Each specification names its source. Manufacturer claims are not independent test results; unconfirmed figures are labelled.
Owner reviews
Do you own the LIBERTY 300?
Tell people how it’s held up: cleaning, maintenance, faults and support. Owner accounts are shown separately from independent reviews.
Sources
Where this page’s findings come from
Sources
Videos
- Definitely David: Dolphin Liberty 300 Review ↗
- Swimming Pool Tips, Reviews & How To - SPL: Dolphin Liberty 300 Cordless Robotic Pool Cleaner With Click-Up Technology! ↗
- Search YouTube for Dolphin LIBERTY 300 ↗Search results may include company demonstrations or similar models. Check the source and model name; a demonstration is not an independent performance test.