4-Pack BK-40AAABU 1.2V 400mAh Replacement Battery Pack for Panasonic Cordless Phone Handset BK40AAABU

We got these to replace the ones in our home phones as they would no longer charge. These worked as expected and the handsets hold a charge.

I thought I could get away with just using AAA (regular) batteries to keep my phone charged. It just didn't work. Still have one phone with original batteries and they're Panasonic rechargeable lithium. With a magnifying glass, I got the proper battery number and ordered the "exact" (time will tell) same batteries. It charged the phone and I no longer need be concerned about the phone not working.This time, I chose not to get a cheaper battery since the Panasonic has been in one phone for about 6 years and know they work.

These Panasonic cordless phone batteries work great and just as I expected. I made a wise choice among many batteries offered via Amazon. My phones are all cordless Panasonic; so, no problems existed.

My batteries were getting low on my cordless phone. I thought I could just use regular batteries but they didn't work. So I bought these and now my cordless phone is working perfect.

A good fix

Cumple su función sin ningún problema

Work as they should.

Using them in my panasonic cordless phone. Fit great and made the phone like new again! Thank you.