Review on Ni-MH Cordless Phone Battery 3.6V 800mAh Replacement - Uniden BP-446 BT-446 BT-1005 BP446 BT446 BT1005 BBTY0457001 BBTY0458001, Radio Shack 23-904 23-961 by Brian Delgado

Slightly disappointed. I ordered BT-446. I had BT-909. Now it fits in a phone, but it's smaller. It is the same voltage 3.6V and 800mAh is the same. Is there a real difference? Just seems to be a different size. I knew the BT-909 would fit because my other Uniden uses the smaller BT-909. If I wanted this battery, I would order it! I wanted a bigger BT-446, not what I got. I'll leave it because it still works and the cost was low. I don't know if it will last as long as a large battery. There must be a reason they make big ones. we have to see Different sizes can be seen in the photo. Top photo of BT-446 from my phone. The picture below is the one they sent me, it says BT-446. But this is really BT-909. This is just information for everyone. I just saw that there are over 900 reviews. Wow that's a lot. How many people don't rate this battery, just wondering. I insert the battery, there is a small charge. I let it run full before charging overnight. crossed fingers UPDATE 12/17/2014. It's only been a day. I installed it and it had about 20% charge. So I dumped it. The phone worked for about 2 hours on a 20% charge. That's a very good sign. Charged to full charge overnight while working well. Upgrade to 4 ½ stars. I used to buy batteries for Markart phones. I have NEVER had a problem with them. I think this is a very good battery. I recommend. Critronics of Colorado installed.