Watt for watt, FLEX 24V chargers are up to 50% faster than the competition. With a built-in intelligent processor, the only dual fan cooling in the industry, and more wattage in the standard charger, FLEX batteries spend less time on the sidelines and more time on the job. Protected by the FLEX Limited Lifetime Warranty when registered within 30 days of purchase atthrough December 31, 2024.