These are a great deal, bought them twice, haven't touched the second set of three. The first batch still going strong. Recharges regular alkaline as well. Did have two Duracels leak on me, after their fifth charge, left them in a USB charger, which doesn't fully shut itself off when not in use, forgot... Not a bad mess, cleaned up easy.
The charger alone, is well worth the price. The are slow, smart chargers, and don't cook the batteries, automatically stops the charge when done, individually. Pretty well built, the clear window tends to come off easy, but snaps back on easy too.
These batteries last a good while, just like regular alkaline, and haven't found anything that didn't like them. Somethings don't like 1.2 volt NiMH batteries so much, or show half dischage, and greatly reduced run time.
Been using them in my metal detector, no difference, last about the same as regular alkaline, just don't need to throw them away.
This is a great deal, and will save you money after a few uses. Throw away batteries add up, even with cheap, and on sale batteries.