If I wire in the minty USB charger with a Lithium Ion/Polymer battery (like you have in the pics) then can I use any AA USB charger for the batteries? That setup will supply enough PWR for the rechargeable's? Sorry for the stupid questions but I'm new to DIY electronic kits. Thanks for the super quick reply.
No. LiPo and NiMH and NiCd are all different battery chemistries and require different charge cycles. I have seen some chargers that are switchable between NiMH and NiCd, but not between NiMH or NiCd and LiPo.