The Twin V Pro comes with a 12v lead as well as a mains adapter meaning it can be used at home or on the move; taking between 1 and 2 hours to fully charge a battery. The Twin V Pro has interchangeable battery contact plates, so you can charge different Li-Ion batteries from different video cameras. The Hahnel Powerstation comes in a sleek, modern housing with a slide out charger cover, turning it into a stand-up charger support.