ADVANCED BATTERY DESIGN - Smart external battery placement frees up internal space for larger debris collection—more efficient than typical battery-powered pool robots. LONG RUNTIME, QUICK RECHARGE - Runs up to 150 minutes on a single charge. Recharges in just 4 hours to keep your pool clean with minimal downtime. HIGH-CAPACITY INTELLIGENT FILTER - Top-loading 7-quart basket captures both fine and bulky debris. Tool-free removal makes maintenance fast, clean, and easy. PRECISION WALL-CLIMBING TECHNOLOGY - Equipped with GELPRO polishing brushes and strong grip tread for stable floor-to-wall cleaning on all pool surfaces. ENGINEERED DURABILITY + 2-YEAR WARRANTY - Built for inground pools up to 10 feet deep. Designed for long-term reliability and covered by a 2-year manufacturer warranty. FOR UNITED STATES ONLY - Product is not intended to function in other countries. Experience next-generation pool cleaning with the 8streme Black Pearl Ultra — a premium battery-powered robotic cleaner engineered for powerful, uninterrupted performance. Designed with a unique external battery system, the Black Pearl Ultra maximizes internal debris capacity while maintaining a streamlined, low-profile build. This smart configuration allows it to collect significantly more dirt, leaves, and debris than conventional cordless models, reducing the frequency of emptying and boosting overall efficiency. Powered by a high-performance lithium battery, this cleaner delivers up to 150 minutes of continuous runtime, easily handling large inground pools without interruption. When it’s time to recharge, the system is fully powered up in just 4 hours — so you're always ready for the next clean. At the core of the Black Pearl Ultra is a precision-engineered 7-quart filter system. Its top-loading design makes it easy to access and clean without tools or mess. Simply lift, rinse, and reinsert — it’s that simple. For a complete clean, the Black Pearl Ultra doesn’t stop at the floor. Its advanced climbing system, paired with Super GELPRO brushes and strong grip tread, allows it to scale pool walls and scrub at every level. The result is a cleaner, healthier swim environment with less manual effort. Built for inground pools up to 10 feet deep, the Black Pearl Ultra is backed by a 2-year manufacturer warranty and designed to provide reliable performance season after season. Smart, powerful, and built for real-world use — this is pool cleaning, reengineered.