100% recharged and with immediate usage!? Varta brings on the market a new generation of rechargeable batteries with the Ready2Use batteries, which facilitates the use of portable energy. The VARTA Ready2Use rechargeable are a new generation of batteries that come pre-charged and can be used right away in your devices such as a digital camera or a MP3 player. Ready2Use (R2U) = these batteries are delivered yet recharged and can be used as removed from their packaging.