...exactly at 3 years (one year beyond the warranty period) it stopped working. The usage I've given it is domestic, careful, and really light (I might have used it less than 10 times to help charge my IX batteries during the winter months in these three years). The charger works normally, but while it starts charging, it keeps going into a process of stopping and starting again (loop) and the charging never actually starts - completes. No drops, no wear, no contact with liquids or moisture, perfect condition of device cables, terminals, and packaging. The store where I purchased it (specialized in batteries and charging - maintenance - repair devices of all types and vehicles) did not help at all, not even for repair information. The general representative, importer also does not offer any support or information about the possibility of repair. The parent company (Noco USA) offers a replacement of the product (at a cost of 60 dollars - via PayPal) but requires the device to be destroyed (the device's cables to be cut - and proof/photos showing the serial number of the device clearly) and of course no possibility of repair (because apparently, some individual component on the board is causing this problem, rendering the entire device useless). While I was satisfied with the company (already the second Noco charger I am using - since the first, much older, cheaper, more used, 1.1Amp model works flawlessly) and despite the seemingly robust compact and good build quality of the products, I will not choose it again.