DUAL CHARGING - Simultaneously charge two Canon BP-900 series batteries, maximizing efficiency and reducing downtime for busy professionals. VERSATILE POWER - Functions as both a dual battery charger and an 8.4V, 4A DC adaptor, providing flexible power solutions for various on-set needs. BROAD COMPATIBILITY - Compatible with Canon BP-930/945 and S-8945 batteries, ensuring wide-ranging use with your existing equipment setup. RAPID CHARGING - Delivers DC 8.4V, 2A output per channel, quickly replenishing battery power to keep you shooting longer and more efficiently.