... .Material:ABS2.Size: 37(D)*19(H)mm 3.Logo:customer design(size:3*1cm) 4.CR2032 battery&2/3AA nimh battery5 ... our demand?We have 10 years battery manufacturing experience,our customer Occurring In Separate fields:emergency lighting,electric tools,dvd power ... competitive advantage? 1,over 10 years manufacturing experience2, take the customer as the center of the service absolutely3,3 years warranty ...