Let me start by saying these WENJOOP AAA rechargeable batteries are a game-changer for anyone tired of constantly buying disposables. I've been using them in everything from my kid's noisy toys to my trusty wireless mouse, and they've held up impressively.

The 1100 mAh capacity sounds great on paper, but real-world testing shows they perform closer to 800-850 mAh. While that's slightly disappointing, it's still decent for rechargeables at this price point. What really shines is their longevity - I've had some cells going strong after 4 years of regular use!

I particularly love how they come pre-charged and ready to use. No more frantic battery runs when the TV remote dies during movie night! The included storage case is a nice touch too, keeping my battery drawer organized.

A word of caution though - the battery wraps are slightly thicker than standard AAAs. They fit snugly in most devices, but I did struggle with one particularly tight battery compartment in an old radio.

Where these batteries really excel is in medium-drain devices. They performed wonderfully in my blood pressure monitor (lasting through multiple daily checks) and gaming controllers. The low self-discharge means they're still ready to go even after sitting unused for months.

While they may not quite hit the advertised capacity, the value is undeniable. Being able to recharge them hundreds of times makes this pack an eco-friendly and wallet-friendly choice compared to disposables.