Just got these EBL C cells for my vintage radio setup and I'm pleasantly surprised! The 5000mAh capacity is legit - my radios run noticeably longer compared to other rechargeables I've tried.

The storage boxes are super handy. No more loose batteries rolling around in my drawer! Though I wish each battery had its own compartment instead of sharing.

Performance-wise, they hold charge really well even after weeks of sitting idle. Used them in my emergency lantern and they still had about 80% power after 2 months of storage.

One thing to note - they do take forever to charge fully (like 12+ hours). But hey, that's the tradeoff for high capacity. Just plan your charging schedule accordingly.

For the price, these are absolute winners if you need reliable rechargeable C cells. Way better than constantly buying disposables!