Suitable battery: 1.5VAA AAA alkaline battery.
USB Batteries Charger Charging For AA AAA Alkaline Battery -Super Fast Charger
AA / AAA Battery Charger USB Battery Charger Charging Tools Quick Charge
Portable USB Battery Charger Charging Fast for 3.7V/4.2V 18650 14500
Universal USB Charger For 3.7v Li-ion Batteries Fast Charging Fast USB Charger
