Maytronics Dolphin LIBERTY 400 Cordless Robotic Pool Cleaner
Maytronics Dolphin LIBERTY 400 Cordless Robotic Pool Cleaner is backordered and will ship as soon as it is back in stock.
Dolphin LIBERTY 400 Cordless Robotic Pool Cleaner – 99998140-US
Cordless Pool Cleaning with Floor, Wall & Waterline Coverage
The Maytronics Dolphin LIBERTY 400 Cordless Robotic Pool Cleaner combines powerful Dolphin cleaning performance with the freedom of a completely cordless design. Built for swimming pools up to 33 ft (10 m), the LIBERTY 400 automatically cleans the pool floor, walls and waterline without a power cable getting in the way.
Powerful active scrubbing helps loosen dirt, algae and buildup from pool surfaces, while the top-access filtration system captures dirt and debris. The LIBERTY 400 includes interchangeable fine and ultra-fine filtration, giving you greater flexibility for everything from larger debris to fine dust and particles.
Charging is simple with Maytronics Magnetic-Connect inductive charging. When cleaning is finished, the convenient Click-Up system lets you activate the robot for easier retrieval from the pool.
The LIBERTY 400 also connects with the MyDolphin Plus App, allowing you to select cleaning modes, configure the robot and receive useful notifications while the cleaner is out of the water.
For ongoing maintenance, Advanced Eco Mode can divide a single battery charge into shorter floor-cleaning cycles throughout the week, helping keep your pool clean without requiring a full cleaning cycle every time.
Features
Completely cordless robotic pool cleaner
Cleans the pool floor, walls and waterline
Designed for pools up to 33 ft / 10 m
Powerful active scrubbing helps remove dirt and buildup
Dedicated waterline scrubbing
Top-access filtration for easy cleaning
Fine and ultra-fine interchangeable filtration options
Additional ultra-fine filter kit included
MyDolphin Plus mobile app connectivity
Advanced Eco Mode for scheduled cleaning throughout the week
Click-Up sound-activated retrieval system
Magnetic-Connect inductive charging
Multiple cleaning modes including Regular, Floor Only and Ultra Clean
No power cable, suction hose or booster pump required
Suitable for liner, gunite and fiberglass pools
Suitable for rectangular, round, free-form and kidney-shaped pools
For in-ground and compatible above-ground swimming pools
Specifications
Brand: Maytronics Dolphin
Model: LIBERTY 400
Maytronics Product Number: 99998140-US
Maximum Pool Length: 33 ft / 10 m
Cleaning Coverage: Floor, Walls and Waterline
Standard Cleaning Cycle: 2.5 Hours
Filter Type: Combined Filter Kit
Filter Access: Top Access
Additional Filter: Ultra-Fine Filter Kit Included
Active Scrubbing: Yes
Waterline Scrubbing: Yes
Mobile App: MyDolphin Plus
Charging System: Magnetic-Connect Inductive Charging
Battery: Lithium-Ion, 5,000 mAh
Operating Water Depth: 1 ft to 9.8 ft / 0.3 m to 3 m
Robot Weight: Approximately 17.9 lb / 8.1 kg
Pool Surfaces: Liner, Gunite and Fiberglass
Pool Types: In-Ground and Above-Ground
Pool Shapes: Rectangular, Round, Free-Form and Kidney
Warranty: 3-Year Maytronics Manufacturer Warranty
Frequently Asked Questions
Is the Dolphin LIBERTY 400 completely cordless?
Yes. The LIBERTY 400 is battery powered and operates without a power cable attached while it cleans your pool.
Does the Dolphin LIBERTY 400 clean the waterline?
Yes. Unlike robotic cleaners that only clean the floor and walls, the LIBERTY 400 provides floor, wall and dedicated waterline scrubbing.
What size pool is the LIBERTY 400 designed for?
Maytronics rates the LIBERTY 400 for swimming pools up to 33 ft or 10 metres in length.
How long is the normal cleaning cycle?
The standard cleaning cycle is approximately 2.5 hours.
What is Eco Mode?
Advanced Eco Mode allows the LIBERTY 400 to divide its available battery power into shorter floor-cleaning sessions throughout the week. Through the app, options include 30-minute cycles four times per week, 40-minute cycles three times per week, or 60-minute cycles twice per week.
What is Click-Up?
Click-Up makes removing the cleaner easier. After the cleaning cycle has finished, shaking the supplied Clicker in the water signals the robot to climb the nearest wall and wait near the surface for retrieval.
Does the LIBERTY 400 work with the MyDolphin Plus App?
Yes. The LIBERTY 400 works with the MyDolphin Plus mobile app. The app can be used to configure cleaning options and receive notifications while the robot is out of the water.
Does it include fine and ultra-fine filters?
Yes. The LIBERTY 400 features interchangeable filtration and includes an additional ultra-fine filter kit for capturing finer dirt, dust and debris.
Can the LIBERTY 400 clean above-ground pools?
Maytronics Canada lists the LIBERTY 400 for both in-ground and above-ground pools. Always make sure the pool construction and surfaces are suitable for a wall-climbing robotic cleaner.
Does the LIBERTY 400 require a booster pump?
No. It is a self-contained cordless robotic cleaner and does not require your pool pump, suction line, pressure line or a separate booster pump.
At K&J Leisure, we pride ourselves on being the best in the pool industry, not just because of our top-quality products but because of our unwavering commitment to customer satisfaction. We want you to love every purchase, but if something isn’t quite right, don’t worry—we’ve got your back!
Our Friendly Return Policy
Here’s how we make returns as refreshing as a dip in the pool:
- Hassle-Free Returns: You have a full 30 days to decide if your purchase is a perfect fit. If it’s not, simply return it—no questions asked! For purchases made in the off-season in cold weather climates, our Return window is open until June 15th! No need to wait to place an order.*
- No Restocking Fees: Unlike others, we believe in fair treatment for our customers and avoid restocking fees on the vast majority of returns. We waive restocking fees if your are not satisfied, if your problem was not resolved or if you simply change your mind!
- Wide Acceptance of Returns: Whether it’s a filter, pool cover, or accessory, we accept most items for return.
Exclusions:
- Custom orders such as Liners, Safety Covers, and Pool Kits cannot be returned, we will work with you to ensure your order is placed correctly on these non-returnable orders.
- Freight shipment orders, including heaters and larger pool filters not shipped via courier - These items may still be returned but we must recoup the original shipping cost that we have paid.
- Customer damaged - We totally understand that by the pool, exposure to chemicals, the elements and just having fun will cause some items to wear. However, we cannot accept returns if an item is damaged beyond use or in extremely poor condition.
How to make a return
Simply reach out to our friendly customer service team, and we’ll guide you through the quick and easy process. info@kjleisure.com or Toll-Free: (866)-509-8728
We can even help with return shipping options if needed!


