This article is a real bargain. Thought it was worth risking $20 to see if it qualified. I spent $60 on 3 chargers that I didn't like. This charges 2 batteries at the same time plus the controller. I thought it would be great to have a Mobil 3 charger so I bought another one. Now for less than $40 I can swap 4 batteries at a time and they are usually fully charged when I get home. Now I don't have to take everything out when I get home, plug everything in and wait 4 hours for them to charge.