Chasing Hydro 4 Battery Robotic Pool Cleaner

The Chasing Hydro 4 Battery is the cordless version of the Hydro 4, a robotic pool cleaner built for medium to large pools. Instead of a deck cable, it runs from a detachable floating battery buoy that sits on the water and powers the unit while it cleans, so there is no cord to trip over or manage around the pool.

Underneath, two turbine centrifugal pumps pull water through twin inlets at up to 320 liters per minute (5,070 gallons per hour). A dual-zone filter basket traps leaves and larger debris in the front and fine sand and silt in the rear. The unit cleans the floor, climbs the walls, and works the waterline, and you can steer it by hand or set a schedule from the Chasing app.

It is built for owners of medium to large in-ground and above-ground pools, up to about 1,614 square feet, who want cordless freedom with strong suction. A full charge supports up to 3.5 hours of cleaning, which covers most residential pools on a single run.

• Dual Cleaning System: Chasing's twin water inlets and dual-zone filter basket pull in more water and trap more debris in a single pass.
  • Front zone captures leaves and larger debris
  • Rear zone traps fine sand and silt
• 320 L/min Dual-Pump Suction: Two turbine centrifugal pumps deliver up to 320 liters per minute (5,070 gallons per hour) of suction.
  • Strong pickup on floors, walls, and the waterline
  • Salt- and chlorine-resistant motors built for long service life
• Dual Active PVC Roller Brushes: Front and rear roller brushes scrub debris loose from every angle as the unit moves.
• Patented Waterline Cleaning: Side jets tilt the body up to 2 inches to hold a steady line along the waterline, cleaning about 25 percent more edge area than top-jet designs.
• Three Cleaning Modes and Ultra Boost: Choose Auto, Floor, or Walls and Waterline, with 1, 2, and 3 hour cycle options.
  • Ultra mode raises cleaning power by about 30 percent for heavy debris
  • Covers slopes, steps, and platforms
• Real-Time Underwater Control: Steer the unit, switch modes, or call it back from the Chasing app, even in the middle of a cycle.
  • Set weekly schedules, runtimes, and delayed starts
  • Over-the-air updates add features over time
• 4.1 L Dual-Zone Filter Basket: A large snap-out basket with 180 micron mesh traps about 40 percent more debris than standard filters and rinses out quickly.
• Easy Retrieval: When the cycle ends, the unit parks at the pool edge and floats to the surface for a simple one-touch pickup.

The Hydro 4 Battery suits homeowners with medium to large pools, both in-ground and above-ground, who want a cleaner with no deck cable to route or trip over. The floating buoy keeps the deck clear, which is helpful around busy pool areas, rentals, and shared spaces.

With up to 3.5 hours of runtime, it handles most residential pools on one charge and works on concrete, vinyl, fiberglass, and tile. The manual 360 degree steering is useful for spot-cleaning a specific area, while the weekly schedule keeps the pool clean without daily attention.

Because the battery buoy is detachable and charges on its own, you can keep the unit ready between cycles without leaving it tied to a power outlet at the pool edge.

Hands-on setup time: about 15 minutes. Plan for a full buoy charge before the first run.

1. Charge the battery buoy: Charge the floating buoy fully with the included power adapter before the first run. A full charge takes about 4 hours.
2. Attach the buoy: Connect the charged buoy to the robot and check the O-ring seal is clean and seated.
3. Install the app and pair: Download the Chasing app, create or sign in to an account, and pair the unit for scheduling and remote control.
4. Check the filter basket: Make sure the 4.1 L dual-zone basket is seated correctly before each cycle.
5. Place the unit and start: Lower the robot into the water, choose a cleaning mode (Auto, Floor, or Walls and Waterline) and a cycle length, then start.
6. Set a schedule: In the app, set a weekly schedule so the unit runs on its own.
7. Collect and recharge: When the cycle ends, the unit floats to the pool edge. Lift it out, rinse the basket, and recharge the buoy for the next run.