Batteries:
Ping 48v 15ah, 5 12v 10ah SLA, 3 12v 10ah SLA
Charger:
Ping Charger 60v 2amp, 36v and 24v Currie Chargers, 36v Currie Charger
Controller:
YK42-4, 100amp, 48v on two, other is stock
Conversion time and cost:
9 months, around $1000 in added parts