Review on 🔋 LGDehome 10PCS 1S 3.7V 4A 18650 Charger PCB BMS Protection Board for Li-ion Lithium Battery Cell: Reliable Battery Safety and Charging Solution by Sandra Johnson

Tested on 4 separate batteries. These batteries were discharged to 2.6V prior to charging. The board had no problem charging them fully. I purposely left a battery pack overnight to charge and the next morning it read 0V (low). Basically, the first charge went well, but there is no overcharge protection. I would recommend paying attention to loading when using these boards. The good thing is that these are 4A boards and they don't even get hot during the charging cycle.