GEILIENERGY 2.4V 300mAh BT-1021 BT-1025 BT-1008 BT-1016 Phone Battery Compatible with Uniden BT1021 Empire CPH-515B BBTG0798001 Cordless Phone (4-Pack)

You do have to allow all these batteries to fully charge before you use the phone, but they work great. Hold a charge as well as the factory-new batteries do. A+ recommendation.

Batteries fit perfectly in my phone. And then I hope that they last long. They're fully charged and we'll see what happens but seems all good. These are different from my last batteries I was shocked to see when I opened the back of the phone there was all rubber gunk all over it. These are different batteries from a different company I'm sure they'll be better.

Phone batteries. They work as intended. Phone works with them.

Bought a few packs of these for myself and parents phones. They don't seem to last as long as OEM but I get a year or two out of them and at this price it's no big deal to keep a few on the shelf for "down the road" when one goes out.Withheld one star for slightly shorter life than OEM. Price and performance are right though.

Quick & easy for a good price, replaced phone batteries & all charged well.!

They are working perfectly so far in my parents phones! No more quick conversations due to their old batteries dying fast! We can now catch up without worry on each others lives and not wonder did their phones die?!Keep in mind they wont last forever but if you are gonna have to visit that long of a time maybe one should go visit in person hahaha!I cannot answer how long of talk time they now create but its better than their old batteries of 30 minutes or less per cordless phone they had!

I just got them a week or so ago, so I don't know about longevity, but once I got them charged up my phone have been working great!

Good match for replacement/ fit right in/ easy to change.