Just another crap charger with crap battery packs. Those reviews seem fake, really who hasn't seen the chargers offered right next to the controllers at every store? Surely the batteries don't die that fast to the point where are you are chewing through hundreds of AA's per year... eneloops last forever so you barely notice when you finally have to change or charge them.
As the above says invest in a lacrosse charger and some eneloops, the Duracell batteries sold in the stores are also just as good, not sure about other brands but the new Duracell ion cores are likely just rebranded eneloop xx. But if you are ordering the charger you may as well order some eneloops as well.
Also most people on here can probably get by with the lacrosse BC-500..