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.
2 batteries
The product is a 6 pack of PKCELL watch batteries, specifically the 377A / LR626 / Ag4 model with an expiration date of 2027. These coin/button cell batteries are alkaline and have a voltage of 1.5V, suitable for low drain…