FLEX FX0221-1 8.0Ah Lithium-Ion Battery powers FLEX 24V tools with smarter management and cooler operation. Built for pros who want longer runtimes and faster charging without the drama of guesswork.

Key Features & Design

• FLEX 24V Lithium Technology paired with THERMA-TECH™ cooling to deliver a driving force up to 20% higher than typical batteries.
• THERMA-TECH™ Heat Management Innovative cooling system minimizes heat for 25% longer runtime.
• POWER IQ Intelligent power management monitors and optimizes the cells for overload protection and higher power.
• DROP, DUST AND WATER RESISTANT Engineered with a shock-resistant design and sealed electronics.
• PATENTED DUAL-SIDED FUEL GAUGE Quickly view battery charge from multiple angles.
• FASTER CHARGING Up to 50% faster charging — 160W Fast Charger Charge Time: 90 Mins; 280W Rapid Charger Charge Time: 50 Mins.
• FLEX 24V CROSS COMPATIBILITY Compatible with all FLEX 24V batteries, chargers and tools.
• END-TO-END 5 YEAR WARRANTY End-to-end coverage on FLEX 24V batteries, chargers and tools.
• FLEX Limited Lifetime Warranty when registered within 30 days of purchase at registermyFLEX.com through December 31, 2024.
• Battery Lock System Durable design prevents accidental disconnection during recharging.

Technical Specifications

• Battery Type: Lithium-Ion
• Voltage: 24V
• Capacity: 8.0Ah
• Power: 1,680W
• Energy: 192Wh
• Battery Weight: 3 lbs, 1.4 kg
• 24V 160W Fast Charger Charge Time: 90 Mins
• 24V 280W Rapid Charger Charge Time: 50 Mins