So my handheld vacuum here is over a year old. I love the thing. Normally when these are plugged in, they show battery status and an indication they are charging. Starting this morning, I see nothing unless I pull the "on" trigger, at which point it just briefly flashes the lowest-power LED (doesn't matter if plugged in or not). I can't find anything on the Dyson website that helps me diagnose what's going on. I've confirmed the charger is working, so it's either the battery or the motor. Any ideas? I'd rather not spend the money on a battery if it won't help.