Synergy Digital Cordless Phone Battery, Compatible with AT&T-Lucent 3301 Cordless Phone Battery Combo-Pack Includes: 2 x SDCP-C320 Batteries

It's only a few months so I have no opinion on the battery life but everything else is top notch. Easy to install into the handset and a very good price.

I bought these batteries as a replacement for my elderly disabled father’s 15 year old cordless phones. He wanted to keep the same phones, but they just wouldn’t hold the charge anymore. Amazon is the go to for everything I told him. I was extremely happy that they came a day earlier than expected. They shipped in a bubble wrap envelope, and were in their own individual boxes. It was a little tricky getting the new batteries in, as the cord was slightly longer than the original. However, I was able to get the backs on by putting the side of the back that was closest to the wires on first, making sure that the wires didn’t get caught as I put the back on, and then snapping the opposite side on and then sliding it in. The battery worked immediately without charging it and had enough juice in it to make a call immediately. The price was a very good value, it was 5times less expensive than going directly to a brick and mortar store that just deals with batteries. I don’t know about the battery life yet, but so far it has surpassed my expectations. I would suggest this for a replacement battery on an AT&T cordless phone.

This is a direct replacement battery but required minor modification to get the phone battery access cover to fit back on the phone. The battery pack has a plastic heat shrink type cover that covers where the wires attach to the battery pack. this keeps the wires pointing in a direction that blocks access to replace the phone cover. The heat shrink had to be cut about 1/4 inch with a razor knife allowing the wires to be pointed in a different direction. this causes no damamge to the battery pack and it performs great.

Battery works great! Can’t address battery life as I have not had the battery very long.

Quick delivery and inexpensive replacement.

I bought these a year ago. They came on time, no problem installing. But I work from home some and am on conference calls that last an hour. These batteries have not held up as well as I had expected. At this point, one handset lasts about 10 minutes before I get the low battery message and have to transfer to the other handset. That one lasts another 15 minutes or less now. I transfer back and forth, trying to last through the meeting, but it can't be done anymore. I just ordered another set of these batteries. I'm hoping to have better luck this time. We'll see.

I ordered these but received the green ones instead. They had a little more mega amps and they work fine . I guess they were out of the yellow ones and decided to send me the green ones, the plug connector was the same so I'm happy . These were a lot cheaper then the RadioShack brand, and the AT&T brand that I purchased in stores. They also were a lot cheaper than others on Amazon .

As advertised ....works for me.

Item was as described and functioned as advertised. Fast shipping.