May also be known as:DL2450, CR2450N, ECR2450, BR2450, BR2450-1W, KCR2450, LM2450, 5029LC. Model: CR2450 Button Coin Cell Battery. Chemical Composition: Lithium. Material are all Lithium. Toys with button cell or coin batteries are required to have a secure closure requiring a screwdriver, coin, or tool to open.
With Short Circuit protection and Reverse Polarity protection. Input Features Micro USB: 5V 2A. Model: PK-8221 for 1~2pcs 3.7V Li-ion Battery. With 2 LED indicators, intuitive display the charging state.