These tiny DC-DC boost converters (step-up) generate 5V output voltage from a single Lithium cell with 3.7V (input must be minimum 3V).
The USB output current with a single cell 3.7V lithium battery is about 500mA @ 5V.
– The efficiency is max. 96%, depending on input voltage and output current.
– The max. output current is 600mA, depending on input voltage.
This is a set of 2 modules.