So I recently picked up an Armytek Wizard V2 ... Its great! But I'm hoping to bite the bullet and switch from CR123s to 18650s.... What do you guys recommend for a good charger? It'd be kinda awesome if it could be used as a battery back up for charging my phone and tablet as well. ... Also what batteries do y'all recommend? I've been eyeing the nitecore products .... Thanks for ur help