Well, I've had the batteries a few days now. Initially I was a little worried about them. They are 1800 mah, but didn't take much of a charge. But, I deep cycled a set a couple of times and now they seem to be pretty good. I had a couple sets of 1600 mah Nexells before. They would last for almost 24 hours in one of my radios. I tried the new ones and they went for at least 20 before the low batt warning starts showing. For the price, they are great. I'm hoping with a few more cycles, they'll be even better.