Ive had one of these before.. Never bothered to fix or mod it. I have a few other UPS's that may get this treatment in the future when the battery's go. Archive: https://archive.today/yxz9D From the post: "If you’ve got a so-called uninterruptible power supply (UPS) on your system, you’re probably painfully aware that the “uninterruptible” part has some pretty serious limits. Most consumer units are designed to provide power during a black out only long enough to gracefully shut down your system. But with a few hacks like these, you can stretch that time out and turn it into a long-endurance UPS."