Shandong Zouping Mingbo Power Source Co. Ltd produces and sells 2/3N280mAh, 4/5N400mAh, 4/5N450mAh size ni-cd rechargeable batrtery. We can provide other size and capacity of the battery according to requirement. Our products have passed ISO9001-2000 and Germany Rhine TUV Safety Certificate. the diameter of 2/3N is 11.6mm, height is 28.5mm the diameter of 4/5N is 11.6mm, height is 40.6mm Good quality and after sales service, we will give the best price. Products are recognized with minbo logo. OEM and ODM services are provided. If you need more information please contact me at any time.