This TP5000 fast 2A charger module can be used for lithium iron phosphate batteries (3.2V) or lithium batteries (4.2V).
It is shipped set for charging lithium iron phosphate batteries (LiFePO4) at 3.2V at 2A.
It is possible to change the charge rate by changing a resistor, see the table and picture above.
This module does not have over discharge or over current protection.
Be careful as it can get very hot, please see an independent review here:
https://lygte-info.dk/review/Review%20Charger%20TP5000%204.2-3.6V%20module%20UK.html
Specifications:
Input: 5-9V (not over 9v, suggest 5v~6v)
Size: 26*19*6mm
Overcharge protection
Set it to 3.6V for LiFePO4 batteries or 4.2V for LiPo Lithium Ion 18650 batteries, default 3.6V
Solder the jumper in the picture to change it to 4.2V.
Charging current: 2A