This Eneloops are already some great parts, to use them in different devices and have recently bought two pieces in the format AAA for my cordless DECT phone. The part now holds back a half weeks in standby and allows sometimes lengthy conversations without the telephony leaders are annoyed by persistent beeping as a "battery low" message. For quite all devices sometimes use a little more and therefore need to be charged regularly, highly recommended. Also very nice: switch off the phone In prolonged absence and do not sit when you return to a dead battery. Great product!