4 Pack C cell NiMh rechargeable batteries 5000mAh real capacity, no memory effect, can be charged and used at anytime. Long battery service life, 1200 Tech, ProCyco (Professional recycle) helps maximize its best power performance while charging. Low self-discharge batteries will remain 90% juice when you leaving it for no use 1 year. Embedded seal structure, ultra slim and make more inner space, stainless steel shell can protect the battery against explosion due to over pressure. EBL C cell batteries are widely used in household devices such as wireless toys, flashlights, clocks, camera, emergency Lighting, radios, LED candle and more.