PKCELL 9V Dry Battery (100 Count)– Ultra Long-Lasting 9 Volt Carbon Zinc Battery, 3-Year Shelf Life, Leak-Proof 9V Battery for Smoke Detectors

I bought these mainly for the smoke detectors I have around the house. For low-power stuff, they work just fine, no issues so far. They’re definitely more affordable than other name brands, which is great if you need a bunch at once.Just keep in mind these are zinc carbon, not alkaline or lithium, so they’re not meant for high-drain devices. I wouldn’t use them in anything that needs a ton of power or constant use.They came well packaged, none were leaking, and I appreciate that they’re made without toxic stuff like mercury or lead. Good deal for backup or light use, but probably not your go-to for heavy-duty gadgets.

Got these to replace the ones in our smoke alarms. Cheaper than getting the name brands and they work just the same! Never had any issues.

I used these in 3 smoke detectors. One started chirping (low battery warning) after 11 months, which is 1 months shy of what I was expecting to get. For the price, and because the other 2 did not chirp, this seems reasonable.

The quality of the stuff is very good,also the price is very good .Thank you

Great Bulk Deal for excellent Batteries that won't break the bank

Have a good life on them good values would recommend

So far so good the smoke alarms and carbon monoxide detectors are no longer beeping in the house

BoI’m hit thes batteries a few weeks ago. They worked quite well however I have noticed that I’ve had to replace one of them already after not a few weeks usage. I like the cost of the batteries as they are better priced than my regular batteries however I wasn’t happy with having to replace one so soon after purchasing it. All in all they are good batteries but I possibly won’t buy again due to the longevity issues I experienced.