They work high performance it's been 6 months without a replacement.

Never knew I had to put rechargeable batteries in my phone. I have 5 of them. I used this one the most on kitchen table. My aide figured what I needed to do. Bought PKG of four batteries and they brought my phone back into service. Great!

I got these to replace a set of non panasonic batteries i had in a panasonic phone. The set of phones i have are 4 bases from 13 years ago, at about 7 years i replace 2 handset batteries, and i tried non panasonic ones, and several brands didnt work, i had to try 3 brands i had at the time laying around (had several new unused sets laying around at the time, and didnt want to invest in more batteries to lay around. Now 6 years later, all the sets (even the off brand ones) needed replacing. So i just bit the bullet and paid the extra. 4 of thise orginal 8 batteries made it 13 years, and all 4 of the off brand ones were dead. Worth the investment in hopes of 13 years out of these. I want to make sure my phones work when i need them.

Perfect for my house phone, they last a long time.

Bought these batteries for my 2 year old Panasonic cordless phones, gave them new life and I don’t hear the low battery beep anymore. Price a little high but we’re in stock and didn’t want to buy new phones.