Comes pre-charged out of the packaging and can be used immediately. Conventional batteries quickly lose a significant portion of their capacity just from storage. With VARTA Ready2Use, this problem has been minimized. Once charged, these innovative batteries can still retain 80% of their original capacity after a year of storage. These batteries do not require a special charger and are well-suited for all types of applications. From low-power wall clocks to power-hungry digital cameras, Ready2Use is a reliable energy solution.