WOW! I'm surprised no one else has gone through this. I went to Batteries Plus today. Excellent service. They, free of charge, welded some solder onto the after market battery's positive post (button) to effectively lengthen the battery to ensure contact. However, it still wouldn't work. We put the original battery back in and it works. They were stumped. They ran a voltage check and the original was at 4+ volts and the replacement battery was at 3.6. They felt I should charge it overnight before giving up. I'll post the results tomorrow.

Really, nobody's replaced a battery in one of these? I'm reading reviews for new lights and this topic isn't even discussed! I think it is pretty important and it's like nobody even cares.

Matt