What is your (Lead-acid, Li-ion, LiFePO4)?
The negative terminals (VIN-, IN-, OUT-) share an internal common ground connection on the circuit board. If you want to troubleshoot a specific issue, tell me:
In this mode, the module acts as an automatic battery charger switch.
: 66 mm x 46 mm x 16 mm with 3.3 mm mounting holes Module Interface & Layout
