I've attached a TP4056 to each of my 8 cells (4 parallel Li-ions) to charge each group of 4 18650 cells as one cell.
However, currently I've got 8 5v USB chargers plugged in the wall and each one is connected to a TP4056 board.
My question is this, which I'm a little hazy about... If I wanted to use one power supply to charge each cell through their respective TP4056, what voltage and amperage power supply would I require?
Is it 40v 8A, or 5v 8A or something else? Can you feed these TP4056 boards with a higher voltage than 5v? Will they just take what they want or will a higher voltage blow it?
Thanks for all your help