My question is, why don't they just make a PCC that can charge several batts at once? Instead of having one on charge, one on standby, and 5 carts, why not beefing up the pcc's battery and charging up 5 batteries? But that doesn't cure the lack of vapor
I think the biggest reason to not do that, is the complete lack of any sort of benefit. One charged/in-use batt and one charging. With a good super mini like an elite, that's all you need. I've never managed to run out a battery on my elite any faster than I could charge the other one.
Of course, I still like my Vgo better, and the elite has been relegated to "back-up" status since I got it.