Customer Ratings & Reviews

I purchased these 9 volt energizer to power a carbon monoxide detector, and so far the batteries are working very well.

That time of year to replace batteries in the smoke detectors. Energizer 9V batteries are always a reliable choice.

They worked as expected. Other batteries I have purchased have lasted as long as I expected. I expect these to do the same thing.

The battery seems to work for at least 6 months of continuel use. It could work longer but it's a replacement for a smoke detector.

I bought 3 of these for my son who needed them. No complaints yet so they are working just fine.

Batteries. They work and have a charger to run my items. Batteries.

I always buy these batteries. They end up being the most cost efficient because they really do last.

Always liked Energizer batteries as they seem to las the longest.

Pretty basic battery - worked as it should. Used it in a n emergency radio, lasted a long time.

This does exactly what i needed it to. My smoke alarm will not make another sound for upwards of 12 months.

Its batteries and they work. Cant say much more about them. Now the computer i ordered and not here yet doesnt make me happy

These batteries work well compared to other leading brands and are competitive when comparing prices with coupons available monthly.

Great battery and works effectively as advertized!

Batteries are always needed. I bought them for my fire & smoke detectors.

I always trust these batteries to do their job. When it comes to smoke detectors, I trust energizer.

Energizer is long-lasting so I always buy this brand. I use it for smoke detectors/clocks and it lasts for years.

I bought these to replace the batteries in my smoke detector. They have lasted a long time. I am pleased

These batteries last really long and better than any other brand .

Long lasting batteries. Worth the cost for sure. Better than store brand.

I use these batteries in different paranormal equipment that I own. They work very well and last a long time.