I have combined five 18650 cells in parallel and i am charging them using a single tp4056 circuit . The problem i am facing is that the module keeps on charging. I had to stop the charging manually at 4.25 volts.
When i am charging a single cell, the over charge protection kicks in at 4.19 volts, which means that circuit is working properly
My question is that why would it keep overcharging when multiple cells are connected in parallel?