Shandong Liangzou Mineral Industry Group Company produces C1800mAh, C2000mAh, C2500mAh, C2800mAh, C3000mAh, 5/4C4000mAh, 5/4C4500mAh size Ni-Cd rechargeable batteries and C4000mAh, C4500mAh size Ni-Mh rechargeable batteries. We can provide other size and capacity of the battery according to requirement. Our products have passed ISO9001-2000, American UL certificate and Germany Rhine TUV Safety.  The C size diameter is 25mm, height is 50mm The 5/4C size diameter is 25.5mm, height is 78mm Product Description  Standard charge current: 0.1C  Standard charge time (h): 15  Rapid charge current: 1C  Rapid charge time (h): 1.2  Low cost  Long cycle life  Excellent quick charge performance  No memory accumulation  Green energy sources, no pollution  Extensive temperature range  Good safety performance