I've been using these Duracell size 10 batteries for my mom's hearing aids, and wow - they're game changers. The EasyTab packaging isn't just marketing fluff; I can actually open them without struggling like with other brands.

What surprised me most? They consistently last 4 full days with all-day use. That's better than the generic store brands we used to buy. The individual packs are genius - I keep a few in her purse, my pocket, everywhere.

Pro tip: They work noticeably better when you let them 'activate' for a minute after removing the tab. We learned this the hard way after some initial frustration with early replacements.

The price point makes sense when you calculate cost-per-day of use. Cheaper batteries would die faster, so you'd actually spend more in the long run. These deliver that classic Duracell reliability in a tiny package.