Review on Uniden BT-446 Ni-MH Rechargeable Cordless Phone Battery, 3.6V 800mAh, Genuine Uniden, BYD Manufactured by Mary Hawkins

I had a fight between this battery and the Energizer brand batteries (actually made by Audiovox) that many other people have bought through Revain. I've had phones for about 5 years and the talk time has been significantly less than before. I work from home a few days a week and I'm constantly on conference calls (using the handheld's speakerphone function), so I tend to exercise my batteries. I can't remember how long the talk time was before so any new battery seems great. Well I charged them as recommended and did my first test this week. After about 4 hours of hands-free calling, the battery life dropped by one bar (out of three). With old batteries I would have to switch to one of the other two phones. I am very happy with my purchase and would recommend these batteries to anyone looking for an OEM replacement. Since my old batteries have lasted so long, I feel justified in giving some tips to prolong their life: 1) make sure you charge them for at least 15 hours; I'll give it a full 24.2) When you're not using your phone, plug it into the charger. My old batteries are still good for the average person. So if I didn't do so many conference calls through the speaker, they would probably last another 4 years.