Eats batteries! - AmeriGlo Haven Handgun Red Dot Sight

Loved everything about this. The price, the size and shape of viewing window, the T-10 Torx bit for elevation and windage. Mounted on a Ruger 22/45 lite. Easy to zero. But then the original battery died within days. Put brand new battery in and it also died within 10 days. Two batteries in less than 15 days!? This model stays on for 12 hours, then shake awake for twelve hours then off. Needs to be a quicker shake awake like Holosun! I will buy the more expensive Holosun 407k and 407c.