Pros: I bought 2 of these (one for each Uniden DECT 1560 Series handset). The phones were given to me by a friend because the factory batteries had gone bad and wouldn't hold a charge. It's a very good deal. So far they Work great. I haven't tested running the battery down to see how long it lasts, but the specs are much better than the factory battery. The factory BT-1007 is a Nickel-Cadmium 500mAh, This is labeled as 1400mAh Ni-MH (Nickle Metal Hydride). Almost 3 times the capacity. Ni-MH batteries tend to leak down over a month or two but last longer in usage (the reason for their popularity in cameras, etc.). For a rechargeable phone, that's fine since I usually put it on the base every day to maintain it's charge. It was the highest mAh rating for the lowest price for this phone that I could find.

Cons: Although I have not run these batteries low enough to test it with these phones yet, Ni-MH batteries, in general, tend to hold their voltage until they get pretty low, so you often don't get a linear indicator of the battery level. So, if the battery level indicator does not show any drop until the battery is almost dead, that's why. I consider it a small price to pay for 2 or 3 times the battery life.