Finally, after all of my envy, got the battery. Some initial thoughts. It isn't NEARLY as big as I thought. At first I thought it was a 4.0ah battery. Yes, they look that similar. Even holding it in one hand and the 4ah battery in the other, it doesn't even feel much heavier. I can't wait to mow the lawn, do the weed eating, and use the blower. See if I can get it all done with 1 battery. Of interest, it was manufactured in November of 2014? I'm glad for the warranty.