Let me tell you, these Amazon Basics rechargeable batteries are a game-changer. I've been using them in everything from my Xbox controller to baby toys, and they just keep going. The 2400 mAh capacity is no joke - my wireless door lock lasts weeks longer compared to my old rechargeables.

The best part? They arrive pre-charged and ready to use. I popped them straight into my Roku remote, and two months later, they're still going strong. That's insane compared to alkalines that would die in weeks.

Now, a heads-up: these batteries are slightly fatter than standard AAs. I had to wiggle them a bit to fit in my Xbox controller. But once they're in? Perfect performance. They also maintain charge incredibly well - after 5 months in storage, mine still had 85% capacity.

Are they perfect? Well, they take several hours to fully recharge. And while Amazon claims 400 charge cycles, I haven't tested that far yet. But for the price? You're getting what feels like premium Sanyo eneloop XX quality at half the cost. Just don't wait too long to buy - prices this good don't last forever.