The FLEX 24V Lithium battery platform brings power output to the next level. It combines intelligent battery management with state-of-the-art THERMA-TECH™ cooling technology to deliver power that’s up to 20% higher than anything you’ve experienced. The 2.5Ah Lithium-Ion Starter Kit includes a 2.5Ah lithium battery and 160W Fast Charger. It’s protected by the FLEX Limited Lifetime Warranty when registered within 30 days of purchase at registermyFLEX.com through December 31, 2025.
- THE FLEX ADVANTAGE - 24V Lithium Technology 
- UP TO 50% FASTER CHARGING - Charges in half the time of standard 75W chargers 
- INTELLIGENT BATTERY PROCESSOR - Overload protection and temperature control for higher power and heavy use 
- THERMA-TECH™ HEAT MANAGEMENT - Innovative cooling system minimizes heat for 25% longer runtime 
- DROP-RESISTANT DESIGN - Engineered with a shock-resistant design and sealed electronics 
- FLEX 24V CROSS-COMPATIBILITY - Compatible with all FLEX 24V tools and chargers 
- FLEX LIMITED LIFETIME WARRANTY - Register your new FLEX tool, battery, or charger within 30 days of purchase through December 31, 2025 to receive a limited lifetime warranty