LIR2450 Rechargeable 3.7V Lithium Coin Cell CR2450 Battery Replacement with Charger Set 4 Pack
 
Product Features
  

         
LIR2450 3.7V VS CR 2450 3V: Same size and function works as per cr2450 coin battery. With 500 times cycle charging keep the lifespan more longer. It works for most of devices which with low working current.
         
Use our coin battery charger to save the charging time: 4pcs of LIR coin cell batteries can be charged at the same time from using CT-ENERGYs battery charger. It can also charge LIR2032, LIR2025,LIR2016,LIR1632 etc.
         
Protect the environment: Use rechargeable coin cell 2450 is friendly to environment protection. A rechargeable 2450 battery with Less capacity 120mAh may be is NO keeping the same working time as per Disposable lithium 2450 batteries. But it can replace almost 100 of CR2450 battery throw away.
         
Fast charging: With 20mAh and 40mAh for your option, Charging time from 2-5 hours depending on different type of rechargeable coin batteries. Plugs into any USB charger (DC 5V), including portable usb chargers. Instructions about the unit led indicators: Blue = charged or no battery, red = charging.
         
Use coin cell short circuit PVC film: keep the batterys negative button far away from metal things, and separately storage the coin battery in single packaging in case of human made short-circuit itself. It may cause heating or explosion.The PVC film on the battery is designed to prevent short circuit. No need to remove the PVC file as it's safe to charge and use the battery with PVC film on your device directly.