Features :
Type-C USB charging
High energy density
Stable voltage and high capacity
Long discharge life and Long service life
Low internal resistance and Excellent safety characteristics
Secure seal provides excellent resistance to leakage and corrosion
Can be recharged more than 1500 times, make them a economical replacement for primary 9V batteries
Beston 9V batteries can be charged by any 5V USB output such as wall chargers, power banks, it doesn’t need an extra charger