I have a lot of siblings, so we just exchange small things (e.g. coffee mug, etc.) but I did buy myself lithium battery w/charger for my Diplomat AHB. Just have to figure out the parasitic draw, (thread in question answer section) but the battery only weighs 11 pounds and should last a very long time. Then, if the battery iin Dip isn't the problem, it'll go in my Power Wagon, because that little battery is getting weak.