I've had my G-Ki about 6 months now. I haven't used it very much because I'm having the following problem: I charge it up, use it for maybe 15-20 minutes, then put it away in the drawer...and when I go back to use it maybe three or 4 days later the battery is Dead With A Capital D and I have to charge it all over. I'm sure I'm turning it off completely after use. Compare to my Fun Factory g4 rechargeable vibes, which seem to last for hours of use over several months on a single charge, or my Lelo ones, it feels like I'm doing a lot of charging with this toy! So I thought I'd ask any other G-Ki owners out there if 15-20 minutes of use is normal for this toy? Or do I somehow have a defective one?