Hey all, sorry if this is a repetitive thing around here with noob questions. I have a raider done buggy with the stock nimh 2000 7.2v battery. Wondering what's a good upgrade for longer life and maybe a little more speed? I see alot on amazon that look like the same physical size but when I find one with the Dean's T plug that I need they sometimes have the extra little white plug on the side of the battery also, is that just for charging or does that extra plug need to be plugged into the car also to work? My son lost the charger a few years ago so we haven't been able to use it so I just got a new charger with every plug adapter so I can charge any of them I think. Any ideas on a decent upgrade for us? I'm not familiar with anything battery related so it's all a little Greek to me.