I was wondering how discharging all the energy from one 18650 Lithium-Ion battery into another 18650 Lithium-Ion battery would be achieved. So far I’ve consulted using MOSFETs, DC to DC Converters and current sources/sinks without avail.
The whole circuit I’m attempting to achieve is a circuit that can fully charge battery 1, and then transfer all of the energy (less any losses) from battery 1 into battery 2.
Any direction or reference papers would be appreciated. Thank you.
Edit: Will update with more details shortly.
The end goal is to have a battery testing circuit that does not entirely dependent on the energy from a wall adapter. The circuit will also be testing for battery voltage, charging current and temperature among other things.
So far I have a discharging circuit to discharge both batteries and a charging circuit to charge one of the two the two batteries. The transferring of energy from battery 1 to battery 2 is the essential step I’m currently working on.
Thanks again for all the insight it’s has been a huge help.