I want to buy a cordless hair clipper (simply because the blade type I am looking for is present only on cordless clippers). The clipper will be high cost/high quality professional model. I currently live abroad and will be carrying it to my home country (no option to buy such clipper back there), in case i ever go back to live there. So it might be sitting in a drawer for years before its first use. Therefore comes the question - how long can the clipper last, considering the above and the fact that the battery will lose charge over time? I am also not a professional and don't plan on every replacing the battery or the blades (anxious about ruining the clipper). Worst case - if the battery has completely lost charge before it's first use - can I use with the corded cable provided? Thank you.