Konica Minolta NP-400 Replacement Battery High Quality, high capacity, rechargeable DC 7.2V Li-Ion 1500mAh battery Latest Lithium Ion battery technology gives the best performance possible compared to other battery technologies such as Nickel Metal Hydride (Ni-MH). Best replacement for the original NP-400 battery packs No memory effect. Can be charged or discharged as needed without loss of capacit Overcharge protection, with built-in battery life microchip