Customer Ratings & Reviews

Excellent battery. I use this for my smoke detector.

Great battery for telephones and cameras. Save money on on buying more.

It's a good product, with a great quality that can be used for a long time before you have to recharge.

Fantastic price for a top of the line rechargeable

Needed a replacement battery for my sprinkler system

Nice to use rechargeable Nimh batteries and pick them up when on sale.

Use it for my rooms fire alarm haven't replace it or charge it seen I bout it

i always buy energizer batteries. they last. need them for my smoke detectors

Good Quality product, helpful staff and acceptable prices

Great battery. Have used recharge now for several years and haven’t failed me yet. I use these to rotate through my smoke detectors. They always last past the 6 month interval and haven’t seen any degradation across any of my recharge batteries. These batteries can be used hundreds of times, says energizer and I know from experience. Why keep paying hundreds of dollars extra when you can just buy these once. If you haven’t yet, give them a try. I highly doubt u will be disappointed.

Seems to be working fine. Kinda expensive so I hope it lasts a long time.

This nine volt battery hold charge well. It last a long time.

Always but energizer! These work great and last long!

saves money on batteries for smoke detectors and convenient

It's a battery, I use it for metal detector. It's good to have a back up, and it's rechargeable.

Very light, fast charging, and lasts a long time in devices. Will be changing all of our smoke alarms to these to extend times between annoying beeping.

This particular 9V rechargeable lasts as long as a standard Duracell NR in a high drain heated glove which equals about two 20 minute walks for the dog. Still looking for a quality 9V for this high drain application.

So far the battery has recharge and still has power.

I use this for a tens unit and will last several days. Charges fast and has a good life span.

I bought these rechargeable 9 volt batteries to use in my smoke detectors. They last a long time and when they do go dead, instead of throwing them away, pop them in the charger. Charging takes a while, but well worth it as you can use them over and over. You will get your money back and more from using rechargeable batteries.