Hi,
I dont use Energizer Alkalines, but i have used Energizer standard NiMH many times in the past, both AA size and AAA size, and even bought one of their very fast chargers (about 10 to 15 minutes per charge).
I have to say that i hate their rechargeables. Every one i tried charged but ran down even without use within a couple weeks. I contacted the company and they sent a coupon for four new ones, so i tried the AAA size. Same deal. They are all somewhere in the garbage now. Gigantic waste of money.
Their 15 minute charger charges the batteries too fast too, so they get very hot which isnt good. I mailed the company a letter suggesting they provide a 30 minute mode, but they sent the letter back (ha ha) and said they cant accept the letter because they might already have that in the works. I wont buy anything Energizer anymore, but i guess their AA size Alkalines might be ok if they dont leak.
I dont buy that stuff anymore anyway though as i have turned exclusively to the low self discharge type made by other companies like Kodac and (the now) Panasonic which took over production of Eneloops. I have had very good luck with these types so i get those, as well as the different type Li-ion 18650 and 14500 sizes. The charger i use now is only the home made charger i made for myself and others to charge the batteries safely and not too fast so they dont get hot.
Also very bad luck with was the NiZn rechargeables which turned out to be total, total carp (not Energizer though). These are supposedly 1.6 volt batteries unlike the usual 1.2v or 1.5v alkalines. Problem was always that they would charge once or twice, then die without warning. I invested over 30 dollars for the charger and batteries, and even got a free set from the company PowerGenix and still they did not work past one or two charges, using their own build charger. I have read many complaints now about these, and the rep told me on the phone that the company does not offer them anymore either. There are other companies that do sell them though, but i'll never buy another one. That's too bad too because i was hoping to take advantage of that 1.6v nominal voltage for each cell.
There is a chance that Energizer makes the low self discharge type NiMH too now, but i havent checked recently. If they do they may be ok, but i dont think i'll be bothered with them anymore and stick with the ones that i know work already.
Good luck:
Eneloops, Kodac low self discharge NiMH, Li-ion most except the button cells
Bad luck:
Radio Shack NiMH, Energizer NiMH, PowerGenix NiZn
I dont know if anyone here remembers but back in the 1990's Ray-O-Vac sold rechargeable alkalines or something like that. They were good for about 20 charges but had a higher terminal voltage similar to alkalines. I used them a lot. They dont sell them anymore though.
What else i had to wonder is if the battery production distribution is geographically based, where the better ones go to certain areas and the not as good ones go to other areas. In this area we seem to either get bad ones or else they dont sell them at all. For example, stores dont sell Eneloops around here, but they do sell Energizer NiMH's.