Fuyuan electronic(hk)co.,ltd are main supply all kinds of lithium ion battery pack and battery charger;power adapter,ac dc adapter. a:li-ion battery pack: external li-ion battery pack for mobile,laptop,pda,ipod,iphone,psp,etc. b: switching power adapter: 3.5w-120w adapter with safety certificate of pse,ul,cul,saa,bs,cb,gs,tuv,ek-mark, ce,fcc,rohs. c: battery charger: li-ion battery charger,ni-mh battery charger,ni-cd battery charger. certificate:pse,ul,saa,bs, cb,gs,tuv,ek,ce,fcc,rohs.