Chasing Hydro 4 Battery Robotic Pool Cleaner

The Chasing Hydro 4 Battery is the battery-powered configuration of Chasing's flagship Hydro 4 platform, built around a floating buoy battery system that fundamentally changes the recharge workflow. The lightweight buoy holds the battery on the pool surface and tethers to the submerged robot via a 10 ft anti-snag cable. When the cycle ends, detach the buoy and charge it indoors without lifting the 16-20 lb robot to a charger. The Hydro 4 Battery cleans pools up to 1,614 sq. ft. with a 3.5-hour runtime per charge.

The Hydro 4 Battery shares the same robot chassis, dual turbine 5,070 GPH suction, 4.1L dual-zone filter basket, and HydroCurve S-shaped navigation as the Corded Mode version. Three cleaning modes (Auto, Wall Enhanced, Floor Only) combine with three runtime presets (1-hour Fast, 2-hour Regular, 3-hour Ultra) for nine configurations. The standout cordless-specific feature is underwater Bluetooth and Wi-Fi communication: the floating buoy maintains a wireless link to the robot while it operates submerged, enabling real-time mode switching, manual navigation, and one-click retrieval through the Poolmate Bot app.

This is the right Hydro 4 configuration for owners who want true cordless freedom on large residential pools. The floating buoy design eliminates both cord tangling and the lift-the-robot-to-charger step that limits other cordless cleaners. Compared to the Corded Mode variant, the Cordless trades unlimited runtime for portability and adds real-time underwater app communication. Compared to the Beatbot Sora 30 (3,229 sq. ft. coverage), the Hydro 4 Battery offers smaller per-cycle coverage but adds the detachable buoy charging system that Sora models lack.

• Power Source: Floating buoy battery (detachable)
• Runtime: 3.5 hours per charge cycle
• Charging Time: 4 hours (buoy charged separately from robot)
• Buoy Tether Cable: 10 ft (3 m), anti-snag design
• Suction Power: 5,070 GPH
• Motor System: Dual turbine pumps (Deep-Sea DC motor x3)
• Maximum Pool Size: Up to 1,614 sq. ft. (210-minute runtime variant)
• Cleaning Coverage: Floor, walls, waterline
• Filter Basket Capacity: 4.1L dual-zone with 180 μm mesh
• Number of Cleaning Modes: 3 (Auto, Wall Enhanced, Floor Only)
• Runtime Presets: 1 hour (Fast), 2 hours (Regular), 3 hours (Ultra)
• Brush System: Active food-grade silicone scrubbing brushes
• Water Inlets: Dual inlet design (world's first dual cleaning system)
• Navigation: HydroCurve S-shaped intelligent path algorithm
• Connectivity: Underwater Bluetooth and Wi-Fi via Poolmate Bot app
• Underwater Communication: Yes, active two-way link during cleaning
• App: Poolmate Bot (iOS and Android)
• Compatible Pool Surfaces: Tile, concrete, vinyl, fiberglass, acrylic, glass, PVC
• Pool Types: Inground and above-ground
• Auto-Docking: Yes, returns to pool edge at low battery or cycle end
• Waterline Cleaning: Patented lateral water jets
• Charger: Universal voltage (100V-240V)

• Floating Buoy Battery System: Lightweight buoy holds the battery on the pool surface; detach for separate charging without lifting the robot itself, eliminating the heavy-lift recharge workflow of conventional cordless cleaners.
• 3.5-Hour Runtime per Charge: Covers pools up to 1,614 sq. ft. on a single cycle; sufficient for most large residential pool layouts.
• Real-Time Underwater Communication: Active two-way Bluetooth and Wi-Fi link between robot and app while submerged; monitor battery, switch modes, navigate manually, and use one-click retrieval mid-cycle.
• 5,070 GPH Dual Turbine Suction: Captures stubborn dirt, grease, and heavy debris in a single pass; equivalent suction to the Corded variant.
• 3+3 Mode Control: Three cleaning modes (Auto, Wall Enhanced, Floor Only) combine with three runtime presets (1h Fast, 2h Regular, 3h Ultra) for nine total configurations.
• HydroCurve S-Shaped Path Navigation: Intelligent algorithm plans optimal cleaning routes; adapts to non-rectangular pool shapes including freeform and L-shaped layouts.
• World's First Dual Cleaning System: Twin water inlets feed a dual-zone 4.1L filter basket; front zone captures leaves and large debris, rear zone catches fine sand and particulate.
• Active Food-Grade Silicone Brushes: Powered scrubbing for stubborn stains and waterline buildup; safe for all pool surfaces and chemical-resistant.
• Enhanced Waterline Cleaning: Patented lateral water jets clean 25% more edge area than standard cordless cleaners; targeted stain removal along the tile line.
• 10 ft Anti-Snag Buoy Tether: Lightweight cable between buoy and robot; no heavy equipment handling and no deck-side power supply.
• Auto-Docking at Low Battery or Cycle End: Returns to pool edge automatically; visible buoy position confirms ready-to-retrieve state.
• Salt- and Chlorine-Resistant Motor Construction: Deep-Sea DC motor technology lasts up to 3x longer than standard motors in chemically treated water.
• 4.1L Dual-Zone Filter Basket: Traps 40% more debris than standard filters; double-open top-load cover for hassle-free emptying.
• True Cordless Freedom: No deck-side power supply, no GFCI outlet routing, no cord management; ideal for pools where deck access is limited or aesthetics matter.
• Universal Voltage Charger: Operates on 100V to 240V outlets globally.

The Hydro 4 Battery fits owners of large residential pools between 1,200 and 1,614 sq. ft. who want true cordless cleaning without lifting a 16-20 lb robot to a charger. The detachable floating buoy is the operational difference: charge the buoy indoors on a counter or shelf, leave the robot in place or store it dry, and reattach for the next cycle. This workflow particularly suits owners with limited deck access, second-home owners who travel between properties, and anyone who finds cord management on a 50 ft tether inconvenient.

For luxury residential properties with infinity edges, attached spas, or complex multi-level pool designs, the real-time underwater Bluetooth and Wi-Fi communication enables manual navigation to clean specific zones the autonomous algorithm misses. Pool service contractors managing premium residential accounts gain a portable cordless solution that can be deployed across a portfolio of properties without unspooling and respooling a 50 ft cable at each stop.

The Hydro 4 Battery is less suited for owners who need unlimited cleaning runtime (consider the Corded Mode variant), pools larger than 1,614 sq. ft. (consider commercial-rated cleaners), or owners who prioritize lowest entry price (the Corded variant is approximately $100 less at current Memorial Day pricing). For owners who want both options, the 2-in-1 Set variant includes both the corded power supply and the floating buoy battery in a single purchase.

Estimated Setup Time: 30 to 50 minutes for unboxing, initial buoy charge, app pairing, and first cleaning cycle.

1. Step 1 - Charge the Floating Buoy: Detach the floating buoy from the robot via the 10 ft cable. Connect the buoy to the included universal voltage charger (100V-240V). Full charge takes 4 hours; LED transitions from red to solid green at completion.
2. Step 2 - Install the Poolmate Bot App: Download Poolmate Bot from the Apple App Store or Google Play. Create an account and select "Add Device" to begin pairing.
3. Step 3 - Pair via Bluetooth and Wi-Fi: Power on the Hydro 4 and follow in-app prompts to pair via Bluetooth, then connect to home Wi-Fi. Wi-Fi enables remote control beyond Bluetooth range and supports the underwater communication link.
4. Step 4 - Verify Pool Conditions: Confirm water chemistry (free chlorine 1-3 PPM, pH 7.2-7.8). Skim large surface debris manually. Confirm pool size is within the 1,614 sq. ft. envelope.
5. Step 5 - Reattach the Charged Buoy: Connect the charged buoy to the robot via the 10 ft anti-snag tether cable. Confirm secure connection before deployment.
6. Step 6 - Select Mode and Runtime: Choose cleaning mode (Auto, Wall Enhanced, Floor Only) and runtime preset (1h Fast, 2h Regular, 3h Ultra) from the app or main button. First cycle in Auto mode establishes pool geometry.
7. Step 7 - Deploy the Robot: Lower the Hydro 4 into the deep end by the carry handle. The floating buoy stays at the surface while the robot operates submerged. Cleaning begins automatically based on selected mode.
8. Step 8 - Monitor and Retrieve: Track progress and battery level in the app via underwater communication link. At cycle end or low battery, auto-docking moves the robot to the pool edge. Detach the buoy for indoor charging, retrieve the robot, empty the dual-zone basket, rinse, and store.