Frauds!! I had purchased an APC UPS of 600VA from them. After noticing few months of poor backup, I had called the company to fix it since it is under warranty. TO my shock, the company representative said that the model looks 600VA, but the battery inside is of only 300VA !!!! Even if they give you for a cheap price ( I bet by now you know how they give it for cheap! ), I would say don't buy from them!! They are cheats!!