I've had the Tornado now for a couple of months and have had no battery issues until recently. Just examining the battery all appears normal. The button lights up when pressed just as it should. Output voltage seems fine, 3.6 - 3.8 volts according to my meter. The problem appears as soon as I screw on an atty. When I press the button the light comes on but it's really dim and vapor production is really low. When I release the button it goes bright for about a half second. I've tried the same atty on my other battery and all works fine. It seems like the voltage is being cut way back with an atty attached.
Any ideas?
Any ideas?