
I have a Uniden DECT 2080 cordless phone system and have replaced the original batteries with these. While they work well, I've found them to run out of power within a few months, even if I don't use my phones that much. Five tubes are connected to this system and one pair is not used at all in the garage, for example, they are only there when needed. However, the batteries fail much sooner than I could reasonably have expected. I think they should last at least a year and if you rarely use them then maybe a few years right?

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