9V Carbon-Zinc Super Heavy-Duty Battery Single Time Use 6F22 Block (6 Batteries)

Using these for my smoke detector. I change them every year and they do not run any less than a year so A++They work fine

I used these to power my guitar pedals, absolutely terrible. They die within a couple hours use (in ANALOG pedals, not even digital), and half of them came with voltages reading below 8V and one didn’t work at all, as if it shorted-out somewhere along the way. Only three of the six were actually reading 9V or above.

Works. It is batteries, not much to say about it. Good deal.

Good buy

These hardly read good on the meter fight out of the package. Don’t waste your time or money. They are not HEAVY DUTY as advertised.We will be returning them…