I stupidly left my battery pack on my bike recently and it disappeared. I see that Geo Man Gear went out of business a year or so ago and it doesn't look like I can order directly from Magicshine. Anyone know where I can get a reasonably priced battery pack? I had the nice hardcover battery pack that Geo Man Gear provided during the recall. Will I need to get a new charger too or will the old one be compatible? Thx.