TWO Pack Maha PowerEx MHR9VI IMEDION "Ready When You Are" 9 Volt Size Low-Self-Discharge NimH Rechargeable Battery [9.6 Volts, 230 mAh]
Unlike traditional NiMH batteries, IMEDION can be stored for an extended period of time without substantial loss of power and are ready to use out-of-package. As the name suggests, the IMEDION batteries will be "ready when you are!" A common problem that plagues rechargeable batteries is that they need to be recharged about once every one to three month even if they are not used. Maha tackled this issue by developing advanced electrode materials to reduce the rate of power loss during storage. As a result, the IMEDION batteries retain up to 85% of its charge even after one year of storage (at a room temperature of 20 deg C). The IMEDION batteries differ from the competition in that they boast a longer lifetime as well as increased power retention under warmer environments. The IMEDION batteries can be recharged for hundreds of times and perform extraordinarily well at elevated temperatures. In addition, the IMEDIONS feature a low-impedance design and can deliver a high burst of current.