Energizer 9 volt MAX

Put one in my flashlight during a power outage and it's still going strong three days later. These definitely hold their charge longer than the cheap ones I used to grab.

My calculator at work eats batteries for breakfast, but these 9 volts have lasted months through constant use. The alkaline chemistry really holds up, and I've already grabbed another pack for my portable radio.

Finally, a 9-volt that actually lasts in my old multimeter without dropping voltage after a week. The tabs sit perfectly snug, which is a relief after struggling with loose connections. These have outlasted the cheap store brand by months.