Eforcity Premium Sony NP-FM55H Compatible Li-Ion Battery Compatible with Sony Alpha DSLR: DSLR-A100 / DSLR-A100H / DSLR-A100K / DSLR-A100KKIT1 Never run out of battery power when you're just about to capture the perfect moment! Time to get extra power for your digital video camera/camcorder. High capacity rechargeable DC 7.4V Li-Ion battery with premium cell. Latest Lithium Ion battery technology gives the best performance possible compared to other battery technologies such as Nickel Metal Hydride (Ni-MH). Compatible with Sony Alpha DSLR: DSLR-A100 / DSLR-A100H / DSLR-A100K / DSLR-A100KKIT1