... charge it once every three months;4.EXC portable power will apply to:IPhone4,IPhone4S,IPad,IPad2,IPod,Itouch,part of IPhone3S ... ) Please do not put EXC power supply in the water or the place near to fire and keep it far away from extreme ... ) Payment:T/T,Western Union,Paypal4) Warranty: one year8.Pictures and packaging: Wholesale 10000mah Mobile Power Bank for Ipad,Iphone with dual USB