Mine Won't fully charge, constant blinking green light. 2 years old used seasonally here in Michigan. Ran all the way dead - recharged - still constant blinking green light. Thinking I'm just not going to plop down $150 for a replacement LiIon battery. Maybe get a second AA battery case. If I can get 6-7 hours on 8 AAs that's going to be long enough. Bummer liked the battery life of the LiIon while it lasted.