These are my findings after using this charger for a month: This is a good charger with sophisitcated charging-, conditioning- and safety options that work well. The charger is easy to use, with good LED indications. The 'Broken accu' indication works very good. So far, the batterries were really broken When the charger Indicated this. After several re-insertion it might start the charging process and maybe even complete it, but you want to see the deed fully charged accu does not stay charged for long. The Charger never gets hot, but I have never tried it on a full load (all slots filled with high-capacity accu's). The Switching Power Supply makes a little bit of noise, but this can be ignored and Easily Often Disappears in relation to other noises from the vicinity. To me it's not irritating. As far as I can tell, all accu types are charged Completely full, and the batteries are not getting hot during charging (just a bit warm). All in all, I'm very happy with this charger, and i would recommend it to potential buyers.