Energizer Ultimate Lithium 9V Batteries (1 Pack), Lithium 9 Volt Batteries

The glass break portion of my alarm started to beep and the panel said "low battery". I went to Amazon, search for lithium 9-volt battery. Among the vast number of choices there was one from Eveready. This being a brand name I know and respect, so I purchased it. One day later it was at my front door. I replaced the old battery with this new one. Now everything is quiet and working properly.

I purchase these lithium batteries when I need long-term performance without having to pay constant attention to whether or not the battery still has power. I find them perfect for the alarm clock backup feature in the event of a power failure and for emergency equipment like radios and flashlights that are not used every day. Their best features are their long life and dependability. These batteries outperform your typical battery by a mile. "Oh, but the cost is prohibitive," some people will say. I can attest that they are worth every penny. One would replace standard batteries at least twice before having to repurchase one of these powerhouses once.

work fine

I use them for my pistol light, typical small size battery, works great, light weight, provides a the full lighting capability of my light for full brightness, battery life honestly unknown because I am not heavily using my light.

Bought these for an old camera that needed this specific battery type and they worked great with no issues. Reliable and did exactly what I needed.

Bought for Ring alarm sensors. Battery life is good so far.

Not all batteries are rechargeable, but its getting there. Still, this brand is the best for length of use and to keep in old appliances, flashlights, spare power toothbrushes, and remotes that function on infrared. For example, I used to use their round batteries on my daily power toothbrush and it outlasted the others by about 50%. But it was also more expensive.

Always use energizer batteries. Best value for money.