I need a new charger for rechargeable AA, AAA, C, D, and 18650 batteries for around $60 max. I think I've narrowed my choices to the Opus BT-3400, Xtar VC4, Xtar VC2 Plus, and Nitecore D4 (+D adapters) but I can't decide. Which charger is the most durable, reliable, and well made and can...