Specification Battery type: CR2450 Replacements to CR2450N, DL2450, ECR2450, BR2450, BR2450-1W, CR2450N, KCR2450, LM2450, 5029LC Shelf Life: 2 years Voltage: 3.0 V Capacity: 600 mAh Battery Size:24*5.0mm Normal weight: 6.2 g/pc;Package weight:134g Caution: Non-rechargeable battery Please correct connection of the battery "+" / "-" polarity Do not use different types of batteries together Do not store battery in direct light, high temperature, high humidity environment. Warning *Fire, explosion and burn hazard. *Short circuit, crush ,disassemble, heat above 100℃ incinerate. *Do not use the battery beyond the permitted temperature range.