Ordered these batteries just days before a spring photography trip around our small town, and they arrived just in time. As an amateur photographer juggling two Canon DSLRs, I was concerned about running out of power while capturing the melting snow landscapes. These batteries performed impressively, lasting noticeably longer than my aging original Canon battery. The dual charger proved particularly valuable - I could charge both batteries simultaneously via my laptop's USB port while editing the day's shots in our cabin. What I like most is the clear LCD display showing actual percentage rather than blinking lights, making it much easier to plan my shooting schedule. The batteries fit perfectly in both my older 60D and 6D without any connection issues. My teenage daughter who's learning photography borrowed one for her school project and commented on how much longer it lasted than her friend's original battery. While slightly heavier than Canon originals, the extra capacity is well worth it. My only minor complaint is that the batteries lack the weather sealing of Canon originals, so I'm careful about exposure to moisture. For fellow photographers balancing quality with budget, these are a practical alternative.