Duracell Hi-Speed Advanced Battery Charger - 15 minutes of charge = up to 4 hours of use (When charging 2 AA batteries; results may vary by device and usage patterns). When you're always on the go, you just don't have time to wait for batteries to charge. Whether you want to keep your kids entertained with a fully charged video game controller, or take endless snapshots of your exciting life - you need batteries you can rely on anywhere you go. The Duracell Advanced Charger is your fast and portable solution to help keep you going instead of having to stop because of empty batteries. This high-speed charger can charge 2 AA batteries in just 45 minutes (Approx. 85% of full charge when using Duracell 1.300 mAh AA NiMH batteries). For those moments when you need your batteries to be ready, it gives you up to 4 hours of use in just 15 minutes of charging (When charging AA batteries; results vary by device and usage pattern). Its 9 safety features make sure that you can keep going without any worries and after batteries are completely charged, the charger can automatically shut off to prevent overheating. This charger comes with Duracell's 10-year guarantee, so you can rely on Duracell's long-lasting power every day. Go on living your life in the fast lane and let your batteries accompany you - wherever you go.