Drain, yes. Over a period of time. But 5-10% overnight? That's not acceptable. The only player that I have out of 4 DAP's that comes close to that is an Ibasso which may drain 1-2% per day when shut off. And that is likely because the battery is the original and in need of replacement. I have nothing against Hiby and I'm not brand loyal to any one manufacturer. Posts here regarding battery drain issues that seem beyond acceptable wouldn't dissuade me from buying a specific product but they would encourage me to do further research before I purchased the product. That's a positive "service" of these forums, not a negative. And if that ultimately puts pressure on manufacturers to address problems or further improve their products, then so be it. That's a win for consumer and, ultimately, the manufacturer. By excusing the battery drain issue, you are making excuses for a problem that shouldn't exist and doesn't have to continue to exist. If the drain really is 5-10% per day and that is acceptable to you, then that's fine. However, that doesn't mean it should be acceptable to everyone.
) and its something to play with until I can order a Sony 1AM2 from Japan as my main DAP.
