This module is used for single-cell lithium or lithium multi-section parallel, charging ports can take power from USB.
Instructions / Precautions
Test current meter in series with the charge sheet only 5V input.
Charge current is best battery capacity 0.37C, is 0.37 times the capacity, meaning that a 1000mAH battery must be charged at 400 mA.
Do not use too small or too long charging connector wires.
Ensure good contact to the battery.
If the 5V input voltage is high, such as 5.2 or even 5.5, will result in insufficient charging current is 1000mA, this is normal.
Chip temperature will automatically reduce the charging current, to protect the chip from burning out.
Chip will get hot (60 degrees is normal).
Do not reverse the Output (battery terminals). It will destroy the chip.